Controladores de MOSFET de potencia
Productos (714)
BTS4130QGAXUMA1 - Quad Hi-Side Switch 2.1A PG-DSO-20 | Infineon
The Infineon BTS4130QGAXUMA1 is a quad-channel Smart High-Side Power Switch housed in a PG-DSO-20-32 (20-pin DSO) package with integrated protective functions and diagnostic feedback. Each of the four output channels is built on an N-channel power MOSFET with charge pump, monolithically integrated in Infineon Smart technology, and rated for 2.1 A continuous load current per channel. The on-state resistance per channel is 130 mOhm typical, enabling efficient switching of resistive and inductive loads in 12 V automotive systems. A high-side power switch (also called a smart high-side driver) is a semiconductor switch placed between the positive supply rail and the load, controlling current flow with low-side referenced logic. Within the broader IC hierarchy, it sits in the power management family alongside low-side switches, half-bridge drivers, and H-bridges, and is specifically engineered to replace electromechanical relays and discrete MOSFET circuits in body-electronics, lighting, and heating modules. The BTS4130QGA family uses N-channel MOSFETs with an internal charge pump rather than P-channel devices, giving lower R_DS(on) per silicon area and tighter current-limit accuracy. Key features include per-channel current limiting, overtemperature shutdown with auto-restart, overvoltage clamp (load-dump robust to 45 V), reverse-battery protection via an intrinsic body diode, ground-loss robustness, and a status feedback pin for fault indication to the MCU. The device operates from a 6 V to 18 V supply (extended range up to 28 V transient) and is qualified to AEC-Q100 for automotive use. Typical applications include driving automotive lamps up to 2.1 A per channel, relay replacement in body control modules, solenoid and small-motor drivers, and resistive heating elements. The quad-channel integration lets one IC replace four discrete high-side switches, reducing PCB area and BOM cost. When designing in this part, ensure the heatsink copper area is sized to keep junction temperature below 150 C at the worst-case ambient and per-channel load, and always include reverse-battery protection at the module input. Compared with discrete N-MOSFET + gate-driver solutions, the BTS4130QGA eliminates gate-drive design complexity and provides diagnostic feedback out of the box.
BTS4140NHUMA1 - Smart High-Side Switch 200mA SOT-223 | Infineon
The Infineon BTS4140NHUMA1 is a single-channel smart high-side power switch with integrated vertical N-channel power FET, rated for 200 mA continuous load current and packaged in a PG-SOT223-4 (TO-261-4) surface-mount module. The device provides embedded protection (current limitation, short-circuit shutdown, thermal shutdown, overvoltage/load-dump protection, and undervoltage shutdown) plus diagnostic feedback, making it a member of the Classic PROFET 24V family designed for rugged 12V/24V automotive and industrial environments. A high-side switch is a power distribution topology in which the load is connected between ground and the MOSFET drain, and the switch sits between the positive supply rail and the load. Compared with low-side switching, high-side switches protect the load from shorts to ground, allow ground-referenced loads (lamps, solenoids, relays), and provide a more intuitive fault response. The BTS4140NHUMA1 belongs to the MINI-PROFET sub-family, optimized for compact PCB footprints and modest current levels up to about 200 mA. Key features include a typical on-resistance of approximately 1.2 ohm at 25 C, an operating voltage range of about 6 V to 62 V (with load-dump transient tolerance), current-controlled CMOS-compatible input, status flag output, and integrated clamping for inductive load turn-off. The PG-SOT223-4 package exposes a large thermal tab that doubles as the drain terminal and provides low thermal resistance for heat spreading into the PCB copper. The internal architecture combines a charge pump to drive the gate of the vertical N-channel MOSFET, a current-sense element, bandgap-based references for the protection comparators, and a status generator that pulls the diagnostic pin low in fault conditions. This monolithic integration reduces external BOM count (no flyback diode required for small inductive loads) and simplifies AEC-Q100-style qualification for the host module. Typical applications include automotive body electronics (door locks, mirror heaters, small lamp drivers, sensor supply switching), industrial 24V PLC discrete outputs, relay replacement in HVAC controls, and any 12V/24V subsystem needing protected, diagnostic-enabled high-side switching. The BTS4140NHUMA1 is especially well suited where PCB space is constrained but full PROFET protection is required. When designing with this part, place the PG-SOT223-4 thermal tab on a copper area of at least 1 cm squared to keep junction temperature within the 150 C Tj(max) under worst-case load-dump and ambient conditions. Always include a reverse-polarity protection block (P-MOSFET or Schottky) on the supply rail because the BTS4140NHUMA1 does not block reverse battery voltage on its own. This page synthesizes distributor pricing, SOT-223-4 drop-in alternatives, and practical thermal/PCB design notes that are not present in the manufacturer datasheet alone, accelerating both component selection and layout review.
BTS4141NHUMA1 - 700mA 24V Smart High-Side Switch | Infineon
The Infineon BTS4141NHUMA1 is a 700 mA single-channel smart high-side power switch housed in a PG-SOT223-4 (3+Tab) surface-mount package, built on Infineon's Classic PROFET family of vertical N-channel MOSFET switches with embedded protection and diagnostic functions. The part is specified for a 24 V automotive supply rail with integrated 0.15 ohm on-state resistance, providing energy-efficient load drive in a footprint-compatible SOT-223 outline. It supports continuous load current up to 700 mA and is qualified for automotive use per the manufacturer's automotive-grade certification. A high-side smart switch (also known as an intelligent high-side driver, or smart FET) is a power-distribution device that places the MOSFET on the supply side of the load rather than the ground side. This topology returns load current directly to the chassis ground through the load, simplifies fault detection, and eliminates ground-shift problems in body-control modules, lighting drivers, and relay replacements. The BTS4141N belongs to the Classic PROFET 24V family, which sits within the broader power-management IC hierarchy of load drivers, hot-swap controllers, and eFuses. Key features include overload protection with current limiting, thermal shutdown with automatic restart, overvoltage protection including load-dump transients, undervoltage shutdown with auto-restart and hysteresis, switching of inductive loads, and ESD protection. The integrated charge pump drives the gate of the N-channel vertical DMOS, while a status flag pin provides diagnostic feedback to the microcontroller. Compared to discrete MOSFET-plus-driver designs, the BTS4141N reduces BOM count, PCB area, and design effort. The BTS4141N is built on a vertical N-channel DMOS process that achieves a typical R_DS(on) of 0.15 ohm at room temperature. This on-resistance translates into low conduction loss - approximately 73 mW at 700 mA - which keeps the SOT-223 package within its thermal envelope without an external heatsink for typical automotive loads. The integrated logic interface accepts 3.3 V and 5 V CMOS levels directly, simplifying connection to modern microcontrollers. Typical applications include 24 V automotive body electronics such as lamp drivers (interior lights, position lamps, indicator LEDs), relay and solenoid replacement, small motor drivers (e.g., mirror adjust), and resistive load switching in central body controllers. The part is also used in industrial 24 V systems where its diagnostic feedback and protection set provide robust load management. When designing with the BTS4141NHUMA1, observe the maximum input voltage rating and derate output current with ambient temperature. A low-ESR input capacitor placed close to the Vbb pin is required to handle load-dump and jump-start transients; the tab of the SOT-223 must be soldered to a sufficient copper pour to keep junction temperature below the thermal-shutdown threshold. This page synthesizes distributor pricing, drop-in alternatives, comparison data, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and qualify the BTS4141NHUMA1 faster.
BTS4142NHUMA1 - 1.4A 24V Smart High-Side Switch | Infineon
The Infineon BTS4142NHUMA1 is a single-channel 1.4 A smart high-side power switch built on Infineon's Classic PROFET™ 24 V vertical-FET technology, housed in a PG-SOT223-4 surface-mount package. It integrates an N-channel power MOSFET with embedded protection, diagnostic feedback, and logic-level control in a 4-pin footprint designed for automotive and industrial 24 V loads. A high-side switch is a power-distribution topology in which the MOSFET is placed between the supply rail and the load, allowing the load to be grounded and switched from the positive rail. Compared with low-side switching, high-side drive eliminates ground-shift noise, breaks ground-return loops, and is the industry standard for automotive lighting, relay replacement, and resistive/inductive 24 V loads. The BTS4142N family belongs to the broader category of power-management ICs (PMICs) and specifically to protected smart high-side switches (also called intelligent power switches, IPS, or PROFET devices). Key specifications include a 1.4 A nominal output current, a 70 mΩ typical on-state resistance (RDS(on)), a wide 6 V to 42 V operating supply range, and integrated protections: overload current limiting, thermal shutdown with auto-restart, overvoltage clamping (including load-dump), undervoltage shutdown with auto-restart and hysteresis, and ESD protection on the logic input. The logic-level input supports 3.3 V and 5 V microcontrollers directly. Typical quiescent current is in the low microampere range, enabling always-on standby in body-control modules. Internally the device uses a charge-pump-driven vertical N-channel DMOS output stage that achieves the 70 mΩ RDS(on) within a small SOT223 footprint. A diagnostic feedback pin reports open-load and overtemperature conditions to the microcontroller, supporting ASIL-relevant fault detection in safety-oriented automotive subsystems. The integrated reverse-battery protection is implemented at the package level, so no external reverse-diode is required on the supply pin. Typical applications include 24 V automotive LED and incandescent lighting, relay and solenoid replacement, HVAC flap motors, seat-heater control, and industrial 24 V resistive/inductive loads. Designers also use it for general-purpose high-side switching where integrated protection replaces discrete MOSFET-plus-fuse designs. When designing with the BTS4142NHUMA1, observe the datasheet's recommended PCB footprint and ensure the tab/thermal pad is soldered to sufficient copper area. For PWM dimming, stay below the maximum PWM frequency limit specified in the datasheet to avoid triggering thermal protection at high duty cycles. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
BTS4175SGAXUMA1 - 1.3A Smart High-Side Switch | Infineon
The Infineon BTS4175SGAXUMA1 is a single-channel Smart High-Side Power Switch (Classic PROFET™ 24V family) rated for 1.3A continuous load current, built on an N-channel vertical power MOSFET with charge pump and embedded protection logic. The device is housed in a PG-DSO-8-24 surface-mount package (8-pin DSO with exposed thermal pad) and is qualified for automotive and industrial 24V applications. Key headline parameters are 1.3A nominal current, 1:1 N-channel high-side topology, and PG-DSO-8-24 footprint. A high-side power switch is a semiconductor device placed between the supply rail and the load, controlling load current by switching the high-side (positive) conductor rather than the low-side return. This topology keeps the load referenced to ground in the off state, which improves short-circuit safety and simplifies wiring diagnostics. Within the broader taxonomy, the BTS4175SGA sits in the high-side switch family, which belongs to power distribution switches, which are a subset of power management ICs (PMIC) and ultimately of semiconductor power devices. The Classic PROFET™ naming convention is Infineon's brand for its 24V smart high-side switches targeting automotive body and chassis modules. Key features include overload protection with current limiting at approximately 1.3A peak, thermal shutdown with auto-restart, short-circuit protection, over-voltage clamp at the output, ESD protection on all pins, and diagnostic feedback through a status output pin. The CMOS-compatible input accepts 3.3V or 5V logic levels directly, eliminating the need for a level shifter. The integrated charge pump drives the N-channel MOSFET gate above the supply rail so the device can deliver true high-side switching from a single 24V supply. Architecturally, the BTS4175SGA combines a vertical N-channel DMOS output stage, an on-chip charge pump, a sense-FET current-mirror for load-current monitoring, and a digital control block implementing protection timers and fault latching. The exposed thermal pad on the PG-DSO-8-24 package keeps junction-to-ambient thermal resistance low enough that the 1.3A rating is achievable without an external heatsink on standard 1- or 2-ounce copper FR-4 boards. The status pin distinguishes between normal operation, overtemperature, and open-load events for in-vehicle diagnostics (OBD) compliance. Typical applications include automotive lighting modules (headlamps, tail-lamps, interior LED strings), resistive heating loads such as seat heaters and mirror defrosters, small DC motor drivers for window lifters and door locks, and industrial 24V solenoid/valve switching. The device is also suitable as a general-purpose protected high-side driver in PLC digital outputs and process-control instrumentation. When designing with the BTS4175SGA, pay close attention to input-to-output ground-loop layout, keep the input capacitor close to the Vbb pin, and ensure the exposed pad receives a copper pour of at least 1 cm² for thermal relief. Designers should also verify cold-crash and load-dump transient behaviour against ISO 7637-2 waveforms, since automotive 24V buses can swing well above the nominal supply during cranking events. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, offering engineers a single reference for sourcing, replacement, and PCB-level implementation of the BTS4175SGAXUMA1.
BTS426L1E3062AAUMA1 - 7A 12V Smart High-Side Switch | Infineon
The Infineon BTS426L1E3062AAUMA1 is a single-channel, 12 V automotive smart high-side power switch built on Smart SIPMOS technology in a PG-TO263-5-2 (DPAK) surface-mount package. It integrates an N-channel vertical power FET with charge pump, ground-referenced CMOS-compatible input, and diagnostic feedback, delivering a typical on-state resistance of 5 mΩ and a continuous load current capability of 7 A per the manufacturer's datasheet. The device is part of Infineon's Classic PROFET 12 V family, designed for 12 V automotive load driving with embedded protection functions. A high-side power switch, often referred to as a smart switch or PROFET (Protected FET), is a semiconductor device that connects a load (e.g., a lamp, solenoid, or motor) to the positive supply rail while providing built-in protection against overcurrent, overtemperature, overvoltage, and short-circuit conditions. It belongs to the broader hierarchy: smart power switch → power distribution switch → power management IC → semiconductor device, and it typically replaces discrete MOSFETs, fuses, and relay circuits in automotive body and powertrain ECUs. Key features of the BTS426L1E3062AAUMA1 include a wide operating voltage range suitable for 12 V automotive systems, 5 mΩ typical RDS(on) for low conduction losses, CMOS-compatible logic-level input, ground-referenced status diagnostic output, and comprehensive embedded protections: overload current limiting, thermal shutdown with auto-restart, overvoltage clamp (including load-dump), reverse battery protection via external components, and ESD protection. The charge pump generates the gate drive for the N-channel MOSFET, enabling true low-RDS(on) high-side switching without a P-channel device. Architecturally, the BTS426L1E3062AAUMA1 monolithically integrates a vertical N-channel power MOSFET, charge pump, gate driver, current sense, and thermal sensor into one Smart SIPMOS die. The charge-pump-generated gate voltage exceeds the battery rail so the N-FET can be fully enhanced for minimal voltage drop. An external resistor at the GND pin (RGND, e.g., 150 Ω) sets the diagnostic current-limit threshold, while a series resistor at the ST (status) pin protects the diagnostic feedback output. Typical applications include automotive body electronics such as lamp drivers (headlamps, tail lamps, indicators), solenoid and valve control, LED lighting modules, heater circuits, and small DC motor drivers in body control modules (BCMs). The wide SOA and embedded protection make it especially attractive for replacing electromechanical relays and fuses in next-generation automotive electrical architectures. When designing with this part, place the device on a copper pour adequate to dissipate typical 2-4 W steady-state losses, and follow Infineon's application-note recommendations for inverse-polarity, reverse-load, and load-dump protection networks. Use the device within its SOA boundaries; thermal accumulation under repetitive short-circuit pulses can trigger shutdown. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
BTS426L1E3062ABUMA1 - 5.8A 12V Smart High-Side Switch | Infineon
The Infineon BTS426L1E3062ABUMA1 is a 12 V automotive smart high-side power switch with an integrated vertical N-channel power FET, housed in a 5-pin PG-TO263-5-2 (D2PAK with 4 leads + tab) surface-mount package. According to the Infineon product page, the device provides 5.8 A continuous output current capability, a typical R_DS(on) of 5 mΩ (per Infineon's BTS426L1-E3062A datasheet family), and embedded protection/diagnostic functions for 12 V automotive loads. What is a high-side power switch? A high-side switch is a semiconductor load driver placed between the supply rail and the load, allowing the load to be turned on/off and protected against fault conditions. The "smart" designation means protection, diagnostic feedback, and control logic are integrated into one package, replacing discrete MOSFETs plus fuse/TVS protection. Smart high-side switches sit within the broader hierarchy: power distribution switch -> load driver -> power management IC -> semiconductor, and are commonly known as PROFET (Protected FET) devices. Key features include overload protection, current limitation, short-circuit protection, thermal shutdown with auto-restart, overvoltage protection (including load-dump transients per ISO 7637), fast demagnetization of inductive loads, and reverse-battery protection. The integrated charge pump drives the N-channel MOSFET fully on, achieving the low R_DS(on) that minimizes conduction dissipation. A diagnostic feedback pin reports open-load, short-to-ground, overtemperature, and overcurrent conditions back to the microcontroller. Typical applications include automotive body electronics (lighting, seat heating, mirror adjustment), relay and fuse replacement, power distribution modules, and industrial 24 V/12 V load switching. The wide operating range and ISO 7637 load-dump tolerance make it especially suitable for direct connection to the vehicle 12 V battery bus. Designers should consider thermal dissipation: at 5.8 A continuous load and 5 mΩ R_DS(on), conduction loss is roughly 0.17 W, but fault currents and ambient temperature in engine-bay environments can push junction temperature toward the 150 °C TJ limit. Per datasheet guidance, use thermal vias under the exposed tab and adequate PCB copper for heat spreading. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
BTS428L2 - 24V Smart High-Side Switch 5.8A | Infineon PROFET
The Infineon BTS428L2 is a 5.8 A smart high-side power switch from the Classic PROFET™ 24 V family, housed in a 5-pin PG-TO252-5-11 (DPAK) surface-mount package. Built around an N-channel MOSFET in a smart single-channel topology, the device integrates comprehensive protection and diagnostic functions that make it well suited for driving resistive, inductive, and capacitive automotive loads directly from a 12 V or 24 V board net. A high-side power switch is a semiconductor relay that sits between the battery/load-supply rail and the load, providing both load activation and intelligent protection. Such switches belong to the broader categories of power distribution ICs, smart switches, and load drivers, which in turn are part of the power management IC (PMIC) family in automotive electronics. The BTS428L2 is engineered for low standby current draw and EMC compatibility, two properties that are critical in body-electronics modules that are permanently connected to the battery. Key features include a typical on-state resistance (RDS(on)) of approximately 60 mΩ, low standby current, integrated reverse-battery protection, load-dump protection up to typical automotive transients, overcurrent, overtemperature, short-circuit, and overvoltage protection. The BTS428L2 also provides a dedicated status feedback pin for fault indication, enabling the microcontroller to discriminate between normal operation, open-load, and short-circuit conditions. Architecturally, the device uses a vertical N-channel MOSFET die with charge pump driving the gate, plus embedded analog and logic for protection and diagnostic functions. The 60 mΩ RDS(on) keeps conduction losses low at the 5.8 A nominal load current, while the integrated charge pump maintains full enhancement of the power MOSFET across the operating voltage range, including cold-crank and load-dump transients. Typical applications include automotive body-electronics loads such as lighting drivers (interior, exterior, and headlamp relays), heated mirrors and seats, window lifters, door locks, and small DC motors and valves in PCB space. The integrated diagnostics are particularly useful for safety-relevant loads that require fault reporting back to the BCM or ECU. When designing with this part, ensure the PCB thermal copper area is sized for the worst-case continuous load current and ambient temperature, since the TO-252 package relies on the PCB copper pad for heat dissipation. Decoupling at the supply pin and proper input capacitance handling on inductive loads are essential for robust operation. This page synthesizes distributor pricing, drop-in PROFET alternatives, and practical automotive design notes not found in the manufacturer datasheet alone, helping engineers shorten their BOM risk window and accelerate PCB layout review.
BTS428L2ATMA1 - 5.8A Smart High-Side Switch | Infineon
The Infineon BTS428L2ATMA1 is a single-channel, 5.8 A smart high-side power switch built on Infineon's classic PROFET (smart SIPMOS) technology, housed in a PG-TO252-5-11 (DPAK-5, 4 leads + tab) surface-mount package. The device integrates a vertical N-channel power MOSFET with charge pump, ground-referenced CMOS-compatible input, and embedded protection/diagnostic feedback functions, enabling direct microcontroller-driven control of resistive or small inductive loads from a 24 V automotive supply rail. A high-side power switch (also called a smart high-side driver) is a type of power distribution switch placed between the supply rail and the load; by switching the high side, the load is grounded only when off, simplifying wiring harnesses and improving short-circuit detection. Within the broader semiconductor taxonomy it sits in: high-side switch -> power distribution switch -> power management IC -> semiconductor. The BTS428L2 family belongs to Infineon's Classic PROFET 24V family aimed at automotive body and chassis applications requiring one-wire control with full diagnostic feedback. Key features include a 50 mOhm typical on-state resistance (R_DS(on)), very low standby current for quiescent battery savings, fast demagnetization of inductive loads, stable behavior under undervoltage conditions, and improved EMC. Protection features include load current limitation, overtemperature shutdown with autorestart, overvoltage clamp (including load-dump), reverse-battery robustness via the tab, and ground-loss protection. A diagnostic feedback pin reports open-load, short-to-battery, short-to-ground, and overtemperature conditions back to the microcontroller. The BTS428L2ATMA1 operates across a wide supply range typical of automotive 12 V/24 V systems, supports a continuous load current up to 5.8 A, and provides CMOS-level input thresholds so it can be driven directly from 3.3 V or 5 V microcontroller GPIO pins. The device is qualified to automotive reliability standards and supplied in a green (RoHS-compliant, Pb-free) package suitable for Pb-free reflow soldering per IPC/JEDEC J-STD-020. Typical applications include automotive body electronics (lighting, door modules, seat control), 24 V truck and bus power distribution, industrial 24 V PLC outputs, and any microcontroller-driven resistive or inductive load requiring comprehensive on-chip protection and diagnostic feedback. Compared to a discrete MOSFET + fuse solution, the BTS428L2ATMA1 reduces PCB area, eliminates the fusible element, and provides software-readable fault diagnostics. When designing with this device, ensure the tab is soldered to a sufficient copper pour for heatsinking - thermal performance scales with PCB copper area. Add a reverse-polarity protection diode or use the device's reverse-battery capability thoughtfully; ensure the input pin has a defined logic level during MCU reset to avoid unintended turn-on. The diagnostic pin requires an external pull-up resistor. This page synthesizes distributor pricing, drop-in alternative candidates, and practical design notes not found in the manufacturer datasheet alone, providing a one-stop engineering reference for the BTS428L2ATMA1.
BTS441RGATMA1 - 17A Smart High-Side Power Switch TO-263-5
The Infineon BTS441RGATMA1 is a 17 A smart high-side power switch built on Smart SIPMOS technology with a single N-channel vertical power FET and integrated charge pump. Housed in a PG-TO263-5-2 (TO-263-5) surface-mount package with a 1:1 N-channel switch topology, it delivers a 1:1 power switch/driver function with diagnostic feedback for 12 V and 24 V automotive and industrial loads. A smart high-side power switch is a type of power distribution switch that sits between the supply rail and the load, providing controlled turn-on, current limiting, and protective features. Smart high-side switches belong to the broader family of power distribution switches -> load switches -> power management ICs -> semiconductor devices, replacing discrete fuses and relays with solid-state protection that can be controlled by a microcontroller. Key features include 17 A continuous load current capability, integrated CMOS-compatible ground-referenced input, diagnostic feedback output, and monolithic charge-pump gate drive. The BTS441RGATMA1 provides short-circuit, overload, and thermal protection as well as over-voltage clamping, enabling reliable switching of resistive, capacitive, and inductive loads in harsh automotive environments. Architecturally, the part uses an N-channel vertical DMOS output stage driven by an on-chip charge pump, allowing full enhancement at low battery voltages while maintaining low Rds(on). The diagnostic pin reports fault conditions such as overtemperature and open load, simplifying ECU firmware design. According to the manufacturer datasheet, the device operates across the standard 12 V/24 V automotive bus range with reverse-battery robustness. Typical applications include automotive lighting control (headlamps, tail lamps, turn signals), body electronics (door locks, seat heaters), and industrial 24 V load switching. The device is also used in power distribution modules and relay replacements where solid-state reliability and diagnostics are required. When designing with this part, ensure the load current does not exceed 17 A continuously and provide adequate copper area on the PCB to dissipate package heat. The exposed tab (pin 5) functions as the main heat path and must be soldered to a sufficiently large copper pour. Use a flyback or free-wheeling diode across inductive loads if the device's internal clamping is insufficient for the energy in the load inductance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
BTS441TGATMA1 - 17A 24V Smart High-Side Switch | Infineon PROFET
The Infineon BTS441TGATMA1 is a single-channel 17 A high-side power switch with an integrated vertical N-channel power FET, housed in a PG-TO263-5-2 (DPAK-5) surface-mount package. Built on Infineon's Classic PROFET family, it provides embedded protection and diagnostic functions for harsh 12 V and 24 V automotive and industrial environments. Key specifications include 17 A continuous load current, 200 mOhm typical on-state resistance, and 4.5 V to 42 V operating supply range that tolerates load-dump transients on 24 V buses. What is a smart high-side switch? A high-side switch is a power semiconductor that sits between the positive supply rail and the load, controlling current flow on the high side of the circuit. A 'smart' switch integrates the power MOSFET, gate driver, current sensing, and protection logic into a single IC, replacing discrete solutions built from MOSFETs, sense resistors, fuses, and comparators. Within the power management IC hierarchy, smart high-side switches belong to the load-driver subcategory that bridges microcontrollers and actuators such as lamps, solenoids, motors, and heaters. The BTS441TGATMA1 embeds overload protection with active current limitation, short-circuit protection, thermal shutdown with auto-restart, overvoltage protection including load-dump, fast demagnetization of inductive loads, and ESD protection. Its diagnostic feedback pin reports open-load and overtemperature conditions to the host microcontroller. The PG-TO263-5-2 package features an exposed thermal pad that reduces junction-to-ambient thermal resistance, enabling sustained 17 A operation on standard FR4 copper. Architecturally, the device uses a vertical DMOS output stage driven by a charge-pump-derived gate bias, allowing true N-channel high-side switching without the need for an external boost supply. The integrated current-sense amplifier outputs a proportional analog signal, while the status pin uses open-drain logic for easy connection to 3.3 V or 5 V MCUs. Combined, these features allow a single GPIO and one ADC channel to drive and monitor a resistive, inductive, or capacitive load. Typical applications include automotive lighting control, solenoid and valve drivers, relay replacement, power distribution modules, and industrial 24 V PLC outputs. Engineers select the BTS441TGATMA1 when they need a robust, self-protected high-side driver for inductive loads where discrete protection circuitry would consume excessive PCB area. When designing the load path, keep the ground return short to ensure accurate current sensing, and place a TVS or freewheeling diode near inductive loads even though the device includes internal demagnetization, to limit peak voltages during abrupt turn-off.
BTS443PAUMA1 - Smart High-Side Power Switch, 21A, 36V | Infineon
The Infineon BTS443PAUMA1 is a single-channel smart high-side power switch built on a vertical power MOSFET and housed in a PG-TO252-5-11 (DPAK-5, 4 leads + tab) surface-mount package. It is rated for an operating range up to 36V (load-dump tolerant beyond that), delivers up to 21A continuous load current, and dissipates up to 42W. According to the Infineon datasheet, it integrates short-circuit protection, current limitation, overload protection, thermal shutdown, overvoltage protection (including load dump), loss-of-ground protection, and loss-of-Vbb protection (with external components), making it a one-chip solution for replacing discrete high-side MOSFETs plus their protection circuitry. A smart high-side power switch is a semiconductor device that sits between the battery/load supply and a resistive or inductive load (lamps, motors, solenoids, relays), turning it on and off in response to a low-power logic-level control signal from a microcontroller. The "smart" aspect refers to embedded diagnostic and protective features — current sense output, fault feedback, and self-protection — that a discrete MOSFET cannot provide alone. Within the broader taxonomy, the BTS443PAUMA1 belongs to the PROFET (Protected MOSFET) family, which is a subset of power distribution switches, itself part of the power management IC category. AEC-Q100 qualification on the automotive-grade variant makes it a workhorse in 12V/24V automotive body electronics. Key electrical features include an on-state resistance (RDS(on)) in the tens of milliohms, a built-in charge pump to drive the N-channel MOSFET fully on, status flag for fault feedback, and a current sense pin (IS) that delivers a proportional current for load-current monitoring. Reverse-battery protection is achieved by self turn-on of the power MOSFET (Reversave), eliminating the need for an external reverse-polarity diode. The integrated charge pump and vertical DMOS structure minimize quiescent current draw when the switch is off. The BTS443P uses a vertical power-MOSFET process, which gives much lower RDS(on) per unit silicon area than lateral MOSFETs and is what enables the 21A rating in the small DPAK-5 footprint. Its switching behavior is slew-rate controlled to limit electromagnetic interference (EMI), and the diagnostic pin (IS) provides both analog current-sense and digital fault-flag information. Protection thresholds (overcurrent, overtemperature) are factory-trimmed so no external component calibration is required. Typical applications include automotive lamp drivers (headlamps, tail lamps, brake lights, fog lamps), PTC heater control, solenoid and relay replacement in body control modules, and industrial 24V load switching. The chip is also used in truck and agricultural vehicle 24V systems thanks to its load-dump tolerance. According to the Infineon datasheet, the device is qualified per AEC-Q100 for automotive use. When designing with the BTS443PAUMA1, place a reverse-battery protection block (zener + resistor) on the Vbb pin and ensure the tab is soldered to a copper pour sized for the worst-case thermal dissipation — at 13.5V input switching a continuous 21A load, dissipation can easily exceed the 42W rating without adequate copper. Always use the IS pin's ground reference as close as possible to the device GND to preserve sense accuracy. This page synthesizes distributor stock data, parametric drop-in alternatives, and practical thermal/PCB design notes not found in a single view in the Infineon datasheet — useful as a quick engineering reference for BOM validation.
BTS452RATMA1 - 1.8A Smart High-Side Switch | Infineon
The Infineon BTS452RATMA1 is a 24 V smart high-side power switch with an integrated vertical N-channel power FET, housed in a PG-TO252-5-11 (DPAK-5) surface-mount package. The device provides 1.8 A typical continuous load current capability and is part of Infineon's Classic PROFET 24 V family designed for automotive and industrial load driving. The BTS452RATMA1 features an on-state resistance of approximately 200 mΩ, ensuring low conduction loss when driving resistive or inductive loads. A high-side switch is a power distribution semiconductor that sits between the supply rail (typically +12 V or +24 V) and the load. It replaces mechanical relays and discrete MOSFETs by integrating the power FET, gate driver, and protection logic into a single chip. High-side switches are used wherever a microcontroller must safely switch a grounded load (lamps, motors, solenoids, heaters) and need diagnostic feedback, current limiting, and protection against fault conditions such as short circuits, overload, and thermal runaway. Key specifications include an operating voltage range of 6 V to 32 V (load-dump tolerant up to 42 V), embedded overload protection with active current limitation, short-circuit protection, thermal shutdown with auto-restart, overvoltage protection including load dump, and undervoltage shutdown. The integrated charge pump drives the N-channel MOSFET gate, while a status feedback pin reports fault conditions back to the supervising microcontroller, enabling ISO 26262-relevant diagnostic coverage in safety applications. The BTS452RATMA1 uses a vertical DMOS power stage combined with CMOS control logic on a single die, achieving low specific on-resistance while maintaining robust short-circuit ruggedness. The 8 mΩ nominal RDS(on) (per Infineon's PROFET 24V datasheet family) is achieved through the vertical FET structure that places the drain on the backside of the die, allowing direct thermal conduction into the DPAK tab. Typical applications include automotive lighting control (headlamps, tail lamps, indicators), relay and solenoid drivers, HVAC blower control, seat-heater switches, and 24 V industrial automation loads. The integrated diagnostics and protection features make it well suited for direct microcontroller-driven load switching without additional discrete protection circuitry. Designers should pay attention to thermal management: the DPAK-5 tab must be soldered to a sufficient copper pour area (typically 35 cm² or more on a standard 1 oz FR-4 PCB) to keep junction temperature within ratings under worst-case load conditions. The input pin requires a resistor for reverse-battery protection, and the status pin needs a pull-up to logic supply voltage. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, drop-in same-package alternatives from the Infineon PROFET family, and practical PCB thermal design notes not found in the manufacturer datasheet alone.
BTS452TATMA1 - 1.8A High-Side Smart Power Switch | Infineon
The Infineon BTS452TATMA1 is a 1.8 A high-side N-channel power switch with integrated vertical power MOSFET, providing embedded protection and diagnostic functions, housed in a PG-TO252-5 (DPAK-5) surface-mount package. It operates from 6 V to 52 V supply voltage, drives up to 1.8 A continuous load current, and offers 200 mOhm typical on-state resistance (RDS(on)). The device is part of Infineon's MINI-PROFET family, designed for 12 V, 24 V, and 42 V DC automotive and industrial load management. A high-side power switch (also called a smart high-side driver or PROFET) is an N-channel MOSFET configured between the supply rail and the load, allowing the load to be grounded and switched by pulling the MOSFET gate high. Compared with discrete MOSFETs plus fuses, an integrated high-side switch embeds protection (overcurrent, short-circuit, overtemperature, overvoltage, undervoltage) and diagnostic feedback (status flag), reducing BOM count and improving reliability in harsh electrical environments such as automotive 12 V/24 V buses. Key features include active current limiting with restart, thermal shutdown with auto-restart, overvoltage protection including load-dump survival, undervoltage shutdown, and an open-drain status output. The BTS452TATMA1 is microcontroller-compatible, accepting 3.3 V or 5 V logic inputs directly at the IN pin. Its PG-TO252-5 (DPAK) package with exposed metal tab provides low thermal resistance (~50 C/W) for continuous 1.8 A operation without external heatsinking on moderate PCB copper area. The BTS452TATMA1 uses Infineon's SIPMOS vertical DMOS process, providing low RDS(on) per unit silicon area and inherent avalanche ruggedness. The integrated charge pump generates the gate drive above the supply rail to fully enhance the N-channel MOSFET, while the diagnostic logic monitors drain current and die temperature. The result is a single-package solution that replaces a discrete MOSFET, gate driver, current-sense resistor, and protection circuitry. Typical applications include automotive body electronics (lighting, seat heaters, mirror heaters, door locks), industrial 24 V load switching (solenoids, valves, small motors), and resistive/inductive/capacitive load control in PLCs and process control modules. It is qualified to AEC-Q100 standards for automotive use and is one of the most widely deployed PROFET parts in vehicle ECUs. When designing with this device, ensure the IN pin logic levels match your microcontroller's GPIO output (TTL/CMOS compatible), route the status output to an interrupt-capable input for fault handling, and observe derating above 25 C ambient. The exposed pad must be soldered to a copper pour of at least 50 mm² for rated continuous current at 85 C ambient. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
BTS462TATMA1 - 3.5A Smart High-Side Power Switch | Infineon
The Infineon BTS462TATMA1 is a 3.5 A smart high-side N-channel power switch housed in a PG-TO252-5 (DPAK-5) surface-mount package, providing one channel of protected load driving with embedded diagnostics. Operating from a 5 V to 34 V supply range, this MINI-PROFET device integrates a vertical power MOSFET, protection circuitry, and a status feedback path, making it a drop-in solution for harsh 12 V/24 V automotive and industrial environments. A smart high-side power switch is a semiconductor relay that places the load between ground and the switch output, allowing the IC to drive resistive, capacitive, and inductive loads with controlled turn-on/turn-off. High-side switches sit in the power management IC hierarchy above simple MOSFET drivers and below multi-channel system basis chips, providing per-channel protection against the most common fault modes encountered in automotive wiring (short-to-ground, overload, load-dump, and reverse-battery events). Key specifications include a continuous drain current of 3.5 A, an on-state resistance (RDS(on)) typically around 50 mOhm at 25 C, current-limit trip near 7 A, and built-in thermal shutdown with auto-restart. The device also features overvoltage protection covering load-dump transients, undervoltage shutdown to prevent in-rush faults, fast demagnetization for inductive loads, and a diagnostic feedback pin that signals open-load and overtemperature conditions back to the host microcontroller. Architecturally, the BTS462TATMA1 uses a vertical N-channel DMOS output stage driven by a CMOS charge-pump and logic interface, all co-integrated on a single die. The charge-pump maintains the gate drive above the source rail, ensuring low RDS(on) regardless of battery voltage. This monolithic integration delivers far better protection coverage than a discrete MOSFET plus fuse approach while reducing PCB footprint. Typical applications include automotive body controllers driving lamps, solenoids, and DC motors; industrial PLC discrete output modules; HVAC actuators; and any 12 V/24 V load that requires embedded protection. The PG-TO252-5 package provides a thermal pad that, when properly soldered to a copper pour, enables sustained 3.5 A operation without a heatsink. When designing with the BTS462TATMA1, observe input capacitor placement (close to Vbb pin) and a generous copper area on the drain tab to limit junction temperature rise. Fault-flag interpretation should be debounced in software, as the STATUS pin can pulse during legitimate switching transients. This page consolidates distributor pricing, cross-brand drop-in equivalents, and practical protection-circuit notes that extend beyond the manufacturer datasheet's typical application example.
BTS4880R - 8-Ch 24V Smart High-Side Switch 200mΩ | Infineon
The Infineon BTS4880R is a Classic PROFET 24V smart 8-channel high-side power switch housed in a SSOP-36 (DSO) power package, with each channel presenting a typical 200 mΩ on-resistance and capable of switching up to 0.625 A per channel. Eight independent high-side outputs make the device well suited to driving resistive, inductive and capacitive loads directly from a 24 V vehicle or industrial bus. Each output integrates short-circuit current limiting, overload protection, thermal shutdown with autorestart, overvoltage (including load-dump) protection, and undervoltage lockout with auto-recovery hysteresis. A high-side switch (also called a high-side driver or PROFET) is a power semiconductor device that sits between the supply rail and the load, controlling current flow to the load while protecting both itself and the wiring harness from fault conditions. The BTS4880R belongs to Infineon's Classic PROFET family, which is a generation of self-protected smart power switches that replace electromechanical relays and discrete fuse/MOSFET circuits in 12 V and 24 V automotive and industrial applications, providing a smaller PCB footprint, lower quiescent current, and built-in diagnostic feedback. Key features include 200 mΩ typical per-channel R_DS(on) at 25 °C, 0.625 A nominal load current, load-dump robustness per ISO 7637-1 / DIN 40839, CMOS-compatible logic inputs, internal charge pump to drive the N-channel MOSFET outputs, and a common diagnostic output with open-load detection in OFF state. The device operates across an extended -40 °C to +125 °C ambient range and is qualified for harsh automotive body-module environments. Architecturally, the BTS4880R integrates eight N-channel vertical MOSFETs whose gates are driven above the supply rail by an internal charge pump; this topology enables true high-side switching with very low R_DS(on). The classic PROFET design also folds in a thermal sensor per channel and a central fault manager that multiplexes diagnostic information back to the microcontroller over a single status pin, simplifying both wiring and software diagnostics. Typical applications include automotive body control modules (lighting, door locks, mirror heaters, seat motors), 24 V industrial PLC output cards, programmable logic controller digital output modules, and any distributed load-driver board that previously used discrete relays or fuses. Replacing a relay cluster with a single BTS4880R reduces PCB area by an order of magnitude while adding electronic protection that relays cannot provide. When designing with the BTS4880R, ensure that the input logic levels match your microcontroller's 3.3 V or 5 V I/O and that the VS supply pin carries sufficient bulk capacitance to absorb load-dump transients. Verify per-channel power dissipation against the SSOP-36 thermal resistance and add a copper pour on the exposed pad to keep junction temperature within safe limits. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet alone, helping engineers shorten design-in cycles and select verified cross-vendor substitutes for the BTS4880R.
BTS500071LUAAUMA1 - 55A Smart High-Side Switch | Infineon
The Infineon BTS500071LUAAUMA1 is a 0.7 mΩ single-channel smart high-side power switch from the Power PROFET+ 12 V family, housed in a PG-HSOF-8-5 leadless package with exposed thermal pad. The device delivers up to 55 A continuous load current and operates from a 5.8 V to 18 V supply range, making it purpose-built for harsh 12 V automotive and industrial load-switching applications. Key differentiating specifications include a 0.7 mΩ typical on-state resistance, integrated reverse-battery protection (Reverse ON), and built-in diagnostic feedback. A high-side smart switch (also called an intelligent high-side switch or IHSS) is a semiconductor power switch placed between the positive supply rail and the load, replacing mechanical relays and discrete MOSFETs with a fully protected solid-state alternative. Within the broader component taxonomy, the BTS500071LUAAUMA1 belongs to: high-side switch -> intelligent load driver -> power distribution switch -> power management IC -> semiconductor device. By integrating the power MOSFET, gate driver, current sensing, and protective logic in one die, smart high-side switches reduce PCB area, eliminate wiring harness weight, and provide MCU-readable fault diagnostics for body-electronics ECUs. Key features include a 55 A continuous current rating, 0.7 mΩ typical RDS(on) at 25 °C, dedicated current-limit and overload shutdown, over-temperature protection with auto-restart, over-voltage clamp at VDS, and ground-loss robustness. The PG-HSOF-8-5 package provides a top-side exposed pad that delivers an exceptionally low thermal resistance, enabling the 55 A rating without external heatsinking on properly designed copper pours. Reverse ON capability protects the device and downstream loads during accidental reverse-polarity battery connection. Architecturally, the BTS500071LUAAUMA1 uses Infineon's N-channel Power PROFET+ trench MOSFET with integrated charge pump, current-sense mirror, and embedded protective state machine. The IS pin provides proportional analog load-current feedback to the MCU ADC, enabling closed-loop current monitoring for predictive maintenance and fault pre-warning. The diagnostic pin reports overtemperature, open load, and short-to-ground conditions through standard Infineon KN/SPI protocols. Typical applications include automotive body control modules, HVAC blower control, seat-heater drivers, and 12 V industrial solenoid/valve drivers. The AEC-Q100 qualification and 12 V optimized RDS(on) make it ideal for replacing electromechanical relays in vehicle electrical systems. Design considerations include proper PCB thermal design—minimum 6 cm² of 2 oz copper on the exposed pad is recommended for full 55 A operation. Place a 100 nF ceramic decoupling capacitor within 5 mm of the Vbb pin to suppress load-dump transients. This page synthesizes distributor pricing, parametric alternatives, and practical PCB layout guidance not found in the manufacturer datasheet, plus a comparison with related PROFET+ family members.
BTS500101LUAAUMA1 - 1.0mΩ 46A High-Side Switch | Infineon
The Infineon BTS500101LUAAUMA1 is a 1.0 mΩ single-channel smart high-side power switch rated for 46 A continuous load current, housed in an 8-pin PG-HSOF-8-6 (TO-leadless) package with exposed thermal pad. It operates from a supply voltage of 3.1 V to 28 V and is built on Infineon's PROFET™ + 12/24/48 V technology platform, providing integrated protection, diagnostics, and reverse-ON capability for robust 12 V, 24 V, and 48 V automotive and industrial loads. A high-side power switch (also called a high-side driver or smart high-side switch) is an N-channel MOSFET placed between the load and the positive supply rail, controlled by a logic-level input. Unlike a low-side switch, it keeps the load referenced to ground when OFF, eliminating ground-shift issues and improving short-circuit safety. Within the broader taxonomy, the BTS50010-1LUA belongs to the family of power distribution switches -> load drivers -> power management ICs -> semiconductors. The integrated logic, gate driver, charge pump, and protection blocks form a 'smart' switch that replaces discrete MOSFETs plus fuses, thermistors, and discrete protection circuitry. Key features include a 1.0 mΩ typical on-state resistance (R_DS(on)) at 25 °C, a continuous load current of 46 A, an operating voltage range of 3.1 V to 28 V, and an active-high logic input compatible with 3.3 V and 5 V microcontrollers. The part provides short-circuit protection, over-temperature protection with auto-restart, over-voltage protection, load-dump robustness, and ground-loss protection. A current sense (IS) pin delivers a proportional analog diagnostic signal for fault detection, and the DEN (diagnostic enable) input is logic-level compatible and referenced to VS. Typical applications include automotive body electronics (e.g., PTC heater, glow plug, fan, pump, and lighting loads), industrial 24 V systems, truck and agricultural 24 V/48 V platforms, and any application requiring a protected, diagnosable high-side driver. The exposed thermal pad of the PG-HSOF-8-6 package supports direct PCB cooling, enabling full 46 A operation on properly laid-out four-layer boards. When designing with this part, follow Infineon PCB layout guidance for the PG-HSOF-8-6 thermal pad and place input capacitors close to the VS pin. For load currents above 30 A, allocate at least 600 mm² of copper on top and bottom layers tied to the exposed pad to keep junction temperature within SOA. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
BTS500101TAEATMA1 - 40A Smart High-Side Switch | Infineon | 12V Loads
The Infineon BTS500101TAEATMA1 is a single-channel smart high-side power switch in the PG-TO-263-7-10 (D2PAK-7) surface-mount package, built around an N-channel vertical power MOSFET with integrated charge pump and capable of driving loads up to 40A continuous / 250A peak in 12V automotive and industrial systems. Key headline parameters include a typical on-state resistance of 1.0 mΩ, a 48A maximum continuous load current rating, and a logic-level 3.3V/5V compatible input that allows direct connection to a microcontroller GPIO. The Power PROFET family integration brings protection and diagnostic features that simplify the design of robust load-driving stages. A smart high-side switch (also called a high-side power switch or intelligent power switch, IPS) is a semiconductor device that connects a load to the positive supply rail and includes on-state MOSFET conduction, gate drive charge pump, protection circuitry (overcurrent, overtemperature, short-to-ground/battery, overvoltage), and load-current feedback for diagnostics. Within the broader system hierarchy, a high-side switch sits between a discrete power MOSFET and a fully integrated motor/relay driver: it is more capable than a bare MOSFET but more load-focused than a half-bridge gate driver. Its job is to make a load "controllable" by a low-power logic signal while protecting the wiring harness and the MCU from fault events. Differentiating features of the BTS500101TAEATMA1 include an extremely low 1.0 mΩ R_DS(on) that minimizes conduction losses and thermal rise, an integrated charge pump that drives the N-channel MOSFET gate from the logic supply, built-in load-current sense output for fault detection and load monitoring, and AEC-Q100 qualification for automotive deployment. The PG-TO-263-7-10 (D2PAK-7) package with exposed thermal tab provides a low thermal resistance path, which is essential at 40A continuous current where I²R losses still produce significant heat. Architecturally, the device combines a vertical N-channel DMOS output stage, a charge pump that generates the gate boost voltage above Vbb, a sense-FET that mirrors load current into an IS pin, and a protection state machine that latches off on faults. Compared with discrete MOSFET + shunt-resistor solutions, this monolithic integration reduces PCB area, eliminates shunt-resistor tolerance errors, and provides much faster short-circuit response (typically tens of microseconds vs. milliseconds for an MCU ADC-driven shutdown). Typical applications include automotive glow-plug and PTC heater drivers, 12V DC motor control (HVAC blowers, fuel pumps, water pumps), resistive and inductive load switching (solenoids, valves), body electronics (seat heaters, mirror heaters), and industrial 24V/12V load management. The device is particularly suited to systems where load-health monitoring and fault reporting back to an ECU are required. When designing with the BTS500101TAEATMA1, ensure the exposed pad is soldered to a sufficient copper pour (typically 6 cm² or more on a 4-layer FR-4 board) to keep junction temperature within the 150°C limit at 40A. Place a 100 nF ceramic bypass close to the Vbb pin to suppress supply transients, and follow Infineon's recommended TVS protection on Vbb if the system is exposed to load-dump events per ISO 7637-2. This page synthesizes distributor pricing, qualified drop-in alternatives, and application-specific design notes not found in the manufacturer datasheet alone, giving engineers a faster path to a working BOM.
BTS500151TADATMA2 - 33A High-Side N-Channel Power Switch | Infineon
The Infineon BTS500151TADATMA2 is a 33 A high-side N-channel power switch (HIC-PROFET family, also branded as PROFET+ 12V) housed in a 7-pin (6 leads + tab) TO-263 surface-mount package. It is engineered for demanding 12 V automotive and industrial load-driving applications including relays, solenoids, motors, lamps, and heaters. Built on Infineon's SMART7 power MOSFET technology with charge-pump driven gate, the device integrates comprehensive protection and diagnostic functions into a single chip, enabling PCB-area savings versus discrete MOSFET-plus-driver designs. High-side switches (HSS) are a category of power distribution switch that sits between the supply rail and the load. They use an N-channel MOSFET on the high side of the load so the output can be pulled all the way to the positive rail, and they are driven by an internal charge pump to overcome the VGS threshold of the N-channel device. Within the broader taxonomy, the BTS500151 belongs to: high-side switch -> power distribution switch -> smart power switch -> power management IC -> semiconductor. It is one of the canonical building blocks for ISO 26262 power distribution ECUs. Key features include a 33 A continuous load current rating (with a peak limit near 39 A per Arrow's listing), low typical on-state resistance for low dissipation, integrated reverse-battery protection, over-current / over-temperature / over-voltage shutdown, ground-loss detection, open-load detection in OFF state, and a status diagnostic output. The 33 A continuous rating allows one switch to replace a discrete relay in many applications, simplifying harness and BOM count. Built-in AEC-Q100 qualification makes the part suitable for automotive body and powertrain ECUs operating across -40C to +150C junction temperature. Typical applications include automotive body control modules (lighting drivers, door lock solenoids, seat heaters), industrial 24 V PLC discrete outputs, truck/construction 24 V load switching, and programmable logic controllers that need a protected, diagnosable high-current sink-source path. The diagnostic pin enables ECU-level fault handling and helps meet ISO 26262 requirements. When designing with this device, ensure the PCB copper pour on the D2PAK tab is sized to keep junction temperature within the SOA envelope at the worst-case load current and ambient. Use a 1k pull-up on the STATUS pin and a 100 nF local bypass on Vbb; otherwise the inrush and ESD immunity of the load lines can degrade. The Infineon PROFET+ family datasheet provides a layout reference footprint and a thermal simulation model that should be followed for >20 A continuous loads.
BTS500201TADATMA1 - 29A HIC-PROFET High-Side Switch | Infineon
The Infineon BTS500201TADATMA1 is a 29 A single-channel smart high-side power switch from Infineon's HIC-PROFET family, housed in a TO-263-7-10 surface-mount package with gull-wing leads. The device integrates a vertical N-channel power MOSFET with on-resistance of approximately 8 mΩ (typical), a charge pump for full DC operation at low battery voltages, and comprehensive protection and diagnostic circuitry including current limiting, overtemperature shutdown, short-circuit protection, and ground-loss detection. A high-side power switch is a semiconductor device that connects a load (such as a lamp, solenoid, relay coil, or motor winding) to the positive supply rail and is controlled by a low-voltage logic-level signal on its input pin. HIC-PROFET sits within the broader smart-power IC hierarchy (smart high-side switch -> power distribution switch -> power management IC -> semiconductor), where it acts as an electronically-controlled, self-protecting replacement for an electromechanical relay or a discrete MOSFET plus fuse combination. Key features include a nominal 13.5 V operating voltage (load dump tolerant to ~40 V), continuous output current up to 29 A, very low standby current, slew-rate control to limit electromagnetic emissions during turn-on, and an open-drain status flag pin for fault feedback to the host microcontroller. The integrated charge pump drives the gate of the internal N-channel MOSFET above the battery rail, allowing true DC operation even at low supply voltages. Built-in diagnostic functions include open-load detection in both on and off states, short-to-ground and short-to-battery detection, and overtemperature shutdown with auto-restart. Typical applications include automotive body-control modules, junction-box electronics, LED lighting drivers, HVAC blower and fan controls, and any industrial 12 V/24 V DC load requiring a robust, protected, and diagnosable switching element. The device is AEC-Q100 qualified for automotive environments and is widely used in safety-relevant subsystems such as exterior lighting and auxiliary power outlets. When designing with this part, pay attention to the input-pin pull-down resistor requirement (keeps the switch off during ECU power-up before firmware initializes the GPIO), and ensure adequate PCB copper area under the tab to keep the junction temperature within the SOA at peak current. For replacement sourcing, the same-footprint TO-263-7-10 family includes parts with different current ratings and RDS(on) values - see the alternatives table below for cross-references.
BTS500251TEAAUMA1 - 24A Smart High-Side Switch | Infineon PROFET+
The Infineon BTS500251TEAAUMA1 (datasheet marketing name BTS50025-1TEA) is a 24 A single-channel smart high-side power switch in the Power PROFET+ family, housed in a PG-TO252-5-11 surface-mount package. It integrates a 2.5 mΩ N-channel MOSFET output stage with embedded protective and diagnostic functions, targeting 12 V, 24 V, and 48 V automotive and industrial loads. What is a smart high-side switch? A smart high-side switch is an integrated power semiconductor that sits between a load and the positive supply rail. It replaces discrete MOSFETs, fuses, and relay logic with a single IC that controls the load via a logic-level input while continuously monitoring current, temperature, and supply voltage. Within the broader hierarchy, a high-side switch belongs to power distribution switches, which are part of the power management IC family used to drive resistive or inductive loads such as motors, heaters, lamps, and solenoids. Key specifications include a 2.5 mΩ typical on-state resistance, 24 A continuous load current capability, and a logic-level (3.3 V/5 V) CMOS-compatible input. The device operates across 4.5 V to 28 V supply, with reverse battery protection rated for -28 V and load-dump robustness up to 42 V. Embedded diagnostics report open-load, short-to-ground, short-to-battery, and overtemperature faults through a current-sense IS pin. The PG-TO252-5-11 package offers a thermal resistance around 35 C/W junction-to-ambient on a standard 1 oz copper JEDEC test PCB, enabling sustained high-current switching without external heatsinking. The BTS50025-1TEA uses a vertical N-channel DMOS output stage driven by a charge-pump-assisted gate driver. This topology gives very low R_DS(on) for reduced conduction losses, while the integrated charge pump keeps the gate enhancement high enough to fully turn on the DMOS at low battery voltages. Reverse-polarity protection is implemented on-die, eliminating the need for an external blocking diode and saving both board space and forward-voltage drop. Typical applications include automotive glow-plug and PTC heater drivers, electric water-oil-fuel pumps, HVAC blower fans, LED lighting modules, and industrial 24 V solenoid or valve drivers. The wide operating range also makes it attractive for 48 V mild-hybrid auxiliary loads. Designers appreciate the family for combining a small footprint with the diagnostic feedback that modern ECU architectures require. When designing with this part, observe the datasheet's recommended PCB copper layout for the drain tab to keep thermal resistance within budget. The IS pin output requires an external sense resistor and, for high-accuracy current monitoring, a low-pass filter to reject switching transients. Reverse-battery events must be checked against the -28 V rating for the application's worst-case jump-start and load-dump profile. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the Infineon datasheet, giving engineers a faster path from selection to qualified PCB.
BTS500801TEAAUMA1 - 10A Smart High-Side Switch | Infineon PROFET
The Infineon BTS500801TEAAUMA1 is a single-channel 10 A smart high-side power switch housed in a PG-TO252-5-11 (DPAK-5) surface-mount package, built around an N-channel vertical power MOSFET with integrated charge pump. Designed as a Classic PROFET 12 V device, it delivers 10 A continuous load current with a typical on-state resistance of 10 milliohms, providing embedded protective functions for automotive and industrial loads. A high-side switch (also called a high-side driver) is a semiconductor switch placed between the positive supply rail and the load, in contrast to a low-side switch that sits between the load and ground. Within the power management hierarchy, this part belongs to the smart power switch family -> power distribution switch -> load driver -> power management IC. Smart high-side switches integrate the MOSFET, gate driver, charge pump, and protection logic into a single package, replacing discrete MOSFET + driver designs in body electronics and similar applications. Key features include a 12 V nominal operating supply (4.5 V to 28 V load supply range), integrated reverse-battery protection, over-current and over-temperature shutdown with auto-restart, ground-loss detection, ESD protection, and a diagnostic current-sense (IS) pin for load current feedback. The device also provides short-circuit protection with configurable current limit and over-voltage clamp (active clamp) at the load. The PG-TO252-5-11 package offers a low thermal resistance path via the drain tab, enabling sustained 10 A operation on FR4 PCB with adequate copper area. The BTS50080-1TEA architecture combines an N-channel vertical power MOSFET with a charge pump that generates the gate voltage above the supply rail, ensuring full enhancement of the power stage even at low battery voltages. The diagnostic current-sense output delivers a current proportional to the load current, allowing the microcontroller to detect open-load, short-to-ground, and short-to-battery faults without additional shunt resistors. Typical applications include automotive lighting (headlamps, tail lamps, turn signals, interior LED modules), body electronics (door locks, seat controllers, mirror heaters), 12 V relay and solenoid replacement, and industrial 24 V (with derating) actuator drivers. According to the Infineon BTS50080-1TEA datasheet, the part targets harsh automotive environments with high inrush loads. When designing with this device, ensure the PCB copper area around the drain tab is sized to keep junction temperature below 150 C at the worst-case ambient. A series resistor or TVS on the input protects against load-dump transients above 28 V, and the IS pin requires an external resistor to convert sense current to a voltage readable by the ADC. This page synthesizes distributor pricing from DigiKey, Mouser, Octopart, and LCSC, plus drop-in Infineon PROFET alternatives and practical design notes not aggregated in the manufacturer datasheet alone.
BTS50101EKBXUMA1 - 10A Smart High-Side Switch | Infineon PROFET
The Infineon BTS50101EKBXUMA1 is a single-channel 10 A smart high-side power switch built on Infineon's Smart6 technology, housed in a PG-DSO-14-47 EP (exposed pad) surface-mount package. The device integrates an N-channel vertical power MOSFET with charge pump, offering a typical on-state resistance of 16 mΩ (datasheet headline: 20 mΩ maximum) and a continuous load current rating of 10 A at an operating voltage range up to 28 V. A high-side power switch (also called a high-side driver or PROFET) is a semiconductor device that controls a load connected between the switch output and ground, in contrast to a low-side switch which sits between the load and ground. High-side switches are essential in automotive and industrial systems because they can disconnect the load completely in the off state, eliminating parasitic ground currents and improving safety during fault conditions. Within the broader taxonomy, the BTS50101EKBXUMA1 belongs to: PROFET family -> Smart High-Side Switch -> Power Distribution Switch -> Power Management IC -> Semiconductor. Key features include built-in protective functions such as load current limitation, overtemperature shutdown, overvoltage protection (including load-dump robustness), reverse battery protection, and ground-loss protection. A current sense (diagnostic) pin provides analog load-current feedback for fault detection and load monitoring. The integrated charge pump drives the N-channel MOSFET gate from the logic-level input signal, enabling the switch to be controlled directly by a 3.3 V or 5 V microcontroller GPIO. Smart6 technology further enhances electromagnetic compatibility (EMC) and standby-current performance. Typical applications include automotive body electronics (driving lamps, solenoids, and motors), industrial process control, programmable logic controller (PLC) outputs, and any 12 V / 24 V system requiring protected, diagnosed high-side switching. The exposed pad dramatically lowers thermal resistance, supporting continuous 10 A operation without external heatsinking in properly laid-out PCBs. Design consideration: maintain a copper pour of at least 6 cm² on the exposed pad to keep junction temperature within safe limits at full load. The diagnostic pin output is ratiometric — calibrate sense resistor values against the datasheet's kILIS factor to convert sense current to actual load current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer page.