Power MOSFET Drivers
Products (426)
BTS52001ENAXUMA1 - 200mΩ 1.5A Smart High-Side Switch | Infineon
The Infineon BTS52001ENAXUMA1 (sales code BTS5200-1ENA) is a 200 mΩ single-channel smart high-side N-channel power switch in a PG-TDSO-8-31 exposed-pad package, rated for 1.5 A continuous load current and qualified to AEC-Q100 for 12 V automotive applications. It integrates a vertical power MOSFET with charge pump, smart protective functions, and diagnostic feedback, all built on Infineon's Smart6 technology. The device is specifically designed to drive 1× R10W 12V lamps as well as LED loads. A high-side power switch (also called a smart high-side switch or PROFET) is a type of power distribution switch that sits between the battery/load supply and the load, controlling current flow with an integrated MOSFET and providing on-state diagnosis, over-current protection, and thermal shutdown. Smart high-side switches belong to the broader category of power distribution switches, which sit under power management ICs and semiconductor ICs. They differ from low-side switches (which sit between the load and ground) by offering better protection against short-to-ground and short-to-battery faults, making them the preferred topology in body-control modules, BCMs, and junction boxes. Key features include an active-high logic-level input, status feedback, open-load detection in OFF state, current limitation, over-temperature shutdown with auto-restart, and over-voltage protection including load-dump robustness. The integrated charge pump drives the N-channel MOSFET gate above the battery rail, achieving true low-RDS(on) high-side switching without external bootstrap components. The exposed-pad PG-TDSO-8-31 package provides a low thermal resistance path for dissipating load-current I²R losses. Typical applications include automotive body electronics (BCM, junction box), 12V R10W lamp drivers (turn indicator, rear lamp, interior lighting), LED driver modules for tail lamps and ambient lighting, and resistive/inductive load driving up to 1.5A. The diagnostic pin enables ECU-level fault detection of open-load, short-to-GND, and short-to-battery conditions - critical for ASIL-relevant functional safety analysis. When designing with this part, ensure the input pin is driven by a true logic-level signal (3.3V or 5V microcontroller GPIO is compatible) and add a small RC network on IN if the wiring harness is long. The exposed pad must be soldered to a copper area of at least 1 cm² to meet the datasheet's 31 K/W thermal resistance rating.
BTS52004EKAXUMA1 - 200mΩ Quad Smart High-Side Switch | Infineon
The Infineon BTS52004EKAXUMA1 is a 200 mΩ quad-channel Smart High-Side Power Switch housed in a PG-DSO-14-48-EP package with exposed pad for enhanced thermal dissipation. Each of the four independent channels integrates an N-channel vertical power MOSFET with charge pump, providing protective functions and diagnosis in a single IC. The device is built on Infineon's Smart6 technology and delivers up to 800 mA per channel continuous load current. A High-Side Power Switch (also called a smart power switch or PROFET) is a solid-state relay that connects a load to the positive supply rail. It combines a power MOSFET, gate driver, charge pump, current sensing, and protective circuitry (overload, short-circuit, overtemperature, overvoltage) into one package. It belongs to the broader hierarchy: power switch -> load driver -> PMIC -> power management IC -> semiconductor. Compared to a discrete MOSFET plus fuse, a high-side switch offers diagnostic feedback, programmable current limit, and self-protection without external components. Key features of the BTS52004EKAXUMA1 include four independently controlled channels with 200 mΩ typical on-resistance per channel, an operating voltage range up to 38 V (load dump tolerant), integrated short-circuit and overtemperature protection with auto-restart, and proportional load current sensing via the IS pin. The exposed thermal pad enables direct PCB heat spreading for sustained high-current operation. According to the Infineon datasheet, the device supports PWM frequencies up to 1 kHz and includes open-load detection in both on and off states. The BTS52004EKAXUMA1 uses a vertical N-channel DMOS output stage driven by an internal charge pump that generates the gate voltage above the battery rail. Smart6 technology integrates the charge pump, gate driver, sense current source, and protection logic on a single die, achieving high reliability in a compact PG-DSO-14 footprint. Each channel's protection state is independent, so a fault on one channel does not disable the others. Typical applications include automotive body modules (door modules, seat controllers, lighting), industrial 24 V PLC outputs, and any system requiring four protected high-side outputs from a single IC. The 38 V load-dump tolerance makes it directly suited to 12 V and 24 V automotive battery rails. When designing with the BTS52004EKAXUMA1, derate continuous current per channel based on PCB copper area and ambient temperature. A 2 cm² copper pour per channel is the typical minimum for full 800 mA operation at 85 °C ambient. The IS pin requires a sense resistor to ground, and the sense ratio is fixed by internal trimming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
BTS5210GXUMA1 - Dual 140mΩ Smart High-Side Switch | Infineon
The Infineon BTS5210GXUMA1 is a dual-channel smart high-side power switch housed in a 14-pin PG-DSO-14-37 package, integrating two vertical N-channel power MOSFETs rated at 140 mΩ on-resistance per channel. Each channel delivers up to 1.8 A continuous load current and the device supports CMOS-compatible logic inputs, status feedback, and embedded protection functions including current limiting, thermal shutdown, and overvoltage clamp. Designed for 12 V and 24 V automotive and industrial systems, it operates from 5.5 V to 40 V supply range and withstands load-dump transients per ISO 7637-1. A smart high-side power switch is a semiconductor device that connects a load to the positive supply rail while integrating protection, diagnostics, and driving functions into a single IC. In the broader power management hierarchy, it sits between a discrete MOSFET plus fuse and a fully programmable multi-channel PMIC; PROFET+ family parts such as the BTS5210G sit alongside eFuse ICs, low-side switches, and H-bridge drivers, all serving the role of controlled power distribution to actuators, lamps, and relays. Key features include very low standby current, fast demagnetization of inductive loads, stable behavior at undervoltage, and improved electromagnetic compatibility (EMC) for automotive EMI/ESD environments. The monolithic SIPMOS chip-on-chip technology combines the power stage and control logic on the same silicon, reducing footprint and parasitic inductance. Both channels feature independent diagnostic feedback for short-circuit, open-load, and overtemperature detection, allowing the host microcontroller to flag wiring faults before they damage downstream loads. Typical applications include automotive body electronics (door modules, mirror heaters, seat controllers), industrial 24 V PLC outputs, relay and solenoid replacement, LED string driving, and resistive/inductive load switching in harsh environments. The device is AEC-Q100 qualified for automotive use, making it suitable for safety-relevant and non-safety-relevant loads that require robust on-board diagnostics. When designing with the BTS5210GXUMA1, ensure the input pins are tied to valid logic levels (CMOS thresholds) and that the status outputs are pulled up to the logic supply. A small RC filter on the input pins is often used to suppress conducted noise. Thermal dissipation must be calculated using the worst-case on-resistance (140 mΩ) and the expected duty cycle of each channel. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, alternative cross-reference data, and practical PCB/thermal guidance beyond what the manufacturer datasheet alone provides, helping engineers select and qualify the part faster.
BTS5215LAUMA1 - Dual 90mΩ Smart High-Side Switch | Infineon
The Infineon BTS5215LAUMA1 is a dual-channel smart high-side power switch built on an N-channel vertical power MOSFET with charge pump, ground-referenced CMOS-compatible input, and integrated diagnostic feedback, monolithically integrated in Smart SIPMOS technology. Housed in a PG-DSO-12-9 package, it delivers two 90 mΩ (typical) channels rated at 3.7 A continuous per channel, optimized for industrial 24 V load switching. A smart high-side switch is a type of power distribution IC that sits between the supply rail and the load, controlling current flow with an integrated MOSFET, gate drive, and protection logic. Unlike a discrete MOSFET with external protection circuitry, a smart high-side switch embeds overcurrent, overtemperature, overvoltage, and short-circuit protection directly on-chip, while also providing load-current feedback to the MCU. The BTS5215L family belongs to the classic PROFET 24 V line of intelligent power switches. Key features include very low standby current, CMOS-compatible input logic, improved EMC behavior, fast demagnetization of inductive loads, stable operation under undervoltage conditions, and a wide operating voltage range. The two-channel design with independent status feedback enables the BTS5215LAUMA1 to drive two resistive or inductive loads (relays, solenoids, lamps) from a single IC, replacing two discrete MOSFETs and their protection networks with one footprint. Typical applications include industrial PLC digital outputs, 24 V industrial automation I/O modules, body electronics modules, HVAC actuator drivers, and process-control valve drivers. The device targets harsh 24 V industrial environments where reverse polarity, jump-start, and load-dump transients are common. When designing with this device, place input and output capacitors close to the IC pins and ensure the diagnostic status pin is properly pulled up; the BTS5215L provides open-drain diagnostic feedback that must be level-shifted for 5 V MCUs. The PG-DSO-12-9 package has a thermal pad that should be soldered to a sufficient copper pour to dissipate the worst-case load current heat without exceeding the junction temperature limit. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
BTS6133DAUMA1 - 41A Smart High-Side Power Switch | Infineon
The Infineon BTS6133DAUMA1 is a Smart High-Side Power Switch built on SIPMOS technology, integrating a single N-channel power MOSFET and full protection logic into a 5-pin PG-TO252-5-11 (DPAK) surface-mount package. It delivers up to 41A continuous drain current capability with a typical on-state resistance (RDS(on)) suitable for 12V automotive and industrial loads, and provides a 1:1 power switch/driver interface per the manufacturer datasheet. A high-side power switch is a semiconductor device placed between the supply rail and the load, which controls DC power delivery while providing diagnostic feedback to the controller. High-side switches belong to the broader category of power distribution switches (load drivers) within power management ICs; they sit above load drivers and below motor drivers in the functional hierarchy. By placing the switch on the positive rail rather than the ground return, high-side switches simplify ground-referenced wiring and enable PWM-based brightness, speed, or thermal control. Key features of the BTS6133DAUMA1 include integrated over-temperature, short-circuit, overload, under-voltage, and over-voltage protection, plus active current limitation and a diagnostic feedback pin for fault reporting. Its 8A continuous load current rating (per Mouser listing) reflects realistic operation with the device's thermal envelope, while the 41A figure represents peak switching capability. The PG-TO252-5-11 package supports tape-and-reel assembly and provides a low thermal resistance path via its exposed metal tab. Architecturally, the BTS6133DAUMA1 combines an N-channel vertical DMOS output stage with CMOS control logic, charge pump, gate driver, and bandgap-based protection comparators on a single die. This monolithic integration reduces board area versus discrete MOSFET-plus-fuse designs and improves fault response time to sub-microsecond scales, which is critical for ISO 7637 automotive transient immunity. Typical applications include automotive body electronics (headlamp relays, seat heaters, window lifters), industrial PLC outputs, 24V solenoid and valve drivers, and any 12V/24V load where diagnostic feedback, short-circuit protection, and reduced wiring complexity justify the part cost versus a discrete MOSFET plus fuse. The BTS6133DAUMA1 is also well suited as a replacement for electromechanical relays in modern vehicle electrical systems. When designing with this part, respect the SOA envelope: at high duty cycles with inductive loads, transient energy during turn-off must be absorbed by an external freewheeling path or the integrated clamp. The exposed tab must be soldered to a copper pour of at least 1 square centimeter to keep junction temperature within the -40C to +150C operating range under continuous load. This page synthesizes distributor pricing, parametric data, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing reflects current market rates as of 2026-09-13 from DigiKey, Mouser, and Octopart aggregation.
BTS6143DAUMA1 - 8A Smart High-Side Switch | Infineon | Automotive PROFET
The Infineon BTS6143DAUMA1 is a single-channel smart high-side power switch housed in a PG-TO252-5-11 (DPAK-5) surface-mount package. Built on Infineon's Classic PROFET family of vertical N-channel MOSFETs, it integrates the control logic, charge pump, and power stage into a single die, providing embedded protection and diagnostic functions for 12 V automotive and industrial loads. The device operates over a load-dump-tolerant supply range and delivers continuous output current up to approximately 8 A. A smart high-side switch, also known as an Intelligent Power Switch (IPS) or PROFET, is a power distribution IC that places a protected MOSFET between the battery/load supply and the load. Compared with discrete MOSFETs plus fuses, an IPS replaces the fuse, the relay, and the protection circuitry with one monolithic device, reducing PCB area while adding diagnostic feedback (current sense, fault flag, temperature sense) to the microcontroller. Key features include short-circuit protection with latch, current limitation, overload protection, thermal shutdown with auto-restart, overvoltage protection including load-dump transients, loss-of-ground protection, and loss-of-Vbb protection. The integrated charge pump drives the gate of the vertical N-channel power MOSFET, achieving low R_DS(on) per unit silicon area and minimizing conduction loss at 12 V nominal rails. Typical applications are automotive body-electronics loads such as lighting modules (headlamp, fog lamp, tail lamp), seat heating, window lift, wiper motors, and other resistive or inductive 12 V actuators. The 5-pin DPAK footprint provides a thermal pad that simplifies heatsinking to the PCB copper pour for sustained high-current operation. When designing with this part, ensure the PCB copper area beneath the exposed tab meets Infineon's recommended footprint and thermal pattern. Verify that the diagnostic pins are correctly pulled to interface with the host MCU's ADC or logic inputs, and that the load is properly clamped against inductive kickback to stay within the device's SOA. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
BTS6163DAUMA1 - 21.5A High-Side Smart Switch | Infineon
The Infineon BTS6163DAUMA1 is a single-channel 1:1 N-channel smart high-side power switch rated at 21.5 A continuous output current, housed in a 5-pin PG-TO252-5-11 (DPAK-5) surface-mount package. The device integrates a vertical power MOSFET with a charge-pump gate driver, current-controlled input, and full diagnostic feedback including analog load current sense and proportional load current feedback, enabling precise system-level protection. Operating across a wide 5.5 V to 62 V supply range with a typical on-resistance of 20 mOhm at room temperature, the BTS6163DAUMA1 is engineered for demanding 12 V and 24 V automotive and industrial loads. A high-side switch (HSS) is a power-distribution topology where the load is tied to ground and the FET switches the positive supply rail. In the BTS6163D family, Infineon's Smart SIPMOS chip-on-chip technology combines the power stage and control die in a single package, delivering embedded protective functions and optimized static electromagnetic compatibility (EMC) without external compensation components. This integration places the part in the broader category hierarchy: high-side switch -> power distribution switch -> load driver -> PMIC -> power management IC -> semiconductor. Key features include 21.5 A continuous current capability, 20 mOhm typical on-resistance, integrated charge pump, current sense diagnostic output, overtemperature shutdown, overvoltage protection (including load-dump), short-circuit protection with auto-restart, open-load detection both in on-state and off-state, ground-loss detection, and reverse-battery robustness via an integrated reverse-protection diode. The diagnostic feedback pin provides both a digital status flag and an analog load-current sense proportional to the drain current. Architecturally, the BTS6163DAUMA1 uses a charge-pump-driven N-channel vertical MOSFET for low RDS(on) despite the high-side configuration, while the analog/digital mux on the IS pin lets the MCU read load current and fault status through a single wire. This dramatically reduces BOM and wiring complexity in body-electronics modules. Typical applications include automotive body control modules (lighting, seat heating, mirror adjustment), industrial PLC outputs, 24 V truck and agricultural-vehicle load switching, and any system requiring protected high-side switching with load diagnostics. The wide 5.5 V to 62 V input range supports both 12 V passenger-vehicle and 24 V commercial-vehicle buses, while the integrated protections eliminate the need for external fuses or TVS diodes in most designs. When designing with this part, place a reverse-protective input capacitor of at least 100 nF directly at the Vbb pin and ensure the IS sense resistor is sized so the diagnostic current does not exceed the ADC input range during maximum load. The exposed tab (PG-TO252-5-11) provides the primary thermal path and must be soldered to a copper pad of at least 6 cm^2 for full 21.5 A operation. This page synthesizes distributor pricing, parametric-matched drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone, giving engineers a faster path from selection to qualified BOM.
BTS621L1E3128AAUMA1 - 8.5A Smart High-Side Switch 24V | Infineon
The Infineon BTS621L1E3128AAUMA1 is a 24 V smart high-side power switch (Classic PROFET 12V family) with two channels, 8.5 A continuous current capability, and 8 mΩ (typical) Rds(on), housed in a 7-pin PG-TO263-7-2 surface-mount package. It integrates an N-channel vertical power FET with charge pump, ground-referenced CMOS-compatible input, and diagnostic feedback monolithically integrated in Infineon's Smart SIPMOS technology. Embedded protective functions include overload, short-circuit, over-temperature, over-voltage, and reverse-battery protection. A smart high-side switch is a type of power distribution switch that sits between the load and the battery rail (typically 12 V or 24 V in automotive/industrial systems), allowing a microcontroller to turn a load on or off with logic-level signals while providing comprehensive load protection and diagnostic feedback. As a member of the broader PROFET (Protected FET) family within automotive power management ICs, this category delivers the energy efficiency of MOSFETs with the integration of analog protection and digital diagnostics - critical for replacing mechanical relays and discrete fuses in modern vehicle electrical architectures. Key features include 8.5 A continuous per-channel load current, 8 mΩ Rds(on) per channel for low conduction losses, ground-referenced CMOS-compatible logic input, integrated charge pump eliminating the need for external drive circuitry, and proportional load current feedback through the IS pin. The PG-TO263-7-2 (DPAK-style) package offers low thermal resistance (θJA ≈ 40 C/W on 6 cm² PCB copper) and is designed for automated assembly. Operating voltage spans 5 V to 34 V, with load-dump survival to 42 V. This device is optimized for 24 V systems including commercial trucks, agricultural tractors, construction equipment, and 24 V battery industrial applications. The diagnostic feedback pin enables current sensing without a shunt resistor, simplifying ECU design and supporting ASIL-relevant fault detection strategies. The part carries automotive qualification and is built on Infineon's AEC-Q100-grade Smart SIPMOS process for harsh-environment reliability. Typical applications include resistive loads (heaters, lamps), inductive loads (valves, solenoids, small motors), and LED lighting modules. The wide operating range and rugged protection features make it equally suitable for body electronics modules, agricultural machinery ECUs, and industrial 24 V DC distributed systems. Designers should size PCB copper area to handle thermal dissipation at maximum load and follow Infineon's reference layout for the PG-TO263-7-2 footprint to achieve the rated Rth values. When designing with this device, ensure the load current does not exceed the thermal derating curve for the actual PCB copper area. The IS pin current-mirror output must be connected to an ADC input with a properly scaled ground-referenced resistor - misuse is a common design pitfall.
BTS621L1E3128ABUMA1 - 24V Dual Hi-Side Switch, 8mΩ PROFET | Infineon
The Infineon BTS621L1E3128ABUMA1 is a dual-channel 24 V smart high-side power switch built on Classic PROFET (Protected FET) technology, integrating two N-channel vertical power FETs with charge pump, CMOS-compatible ground-referenced inputs and a diagnostic feedback in a monolithically integrated Smart SIPMOS process. It delivers 8 mΩ typical on-state resistance per channel and supports continuous load current of 4.4 A per output in the PG-TO263-7-2 surface-mount package. Each channel is rated for 12 V nominal automotive bus operation with 24 V load-dump survivability. A high-side power switch is a semiconductor that sits between the supply rail and the load, controlling current flow from the battery to actuators such as lamps, solenoids or motors. The "high-side" configuration means the switch is placed on the positive supply line rather than the ground return, which keeps the load referenced to chassis ground - critical for safety and short-circuit behavior in automotive wiring harnesses. Within the broader taxonomy, this part is a smart power switch, a sub-category of power distribution switches and load drivers, which themselves sit inside PMIC (Power Management IC) products. The "PROFET" naming reflects Infineon's protected-FET lineage dating back to the 1990s. Key features include embedded overload protection, current limitation, short-circuit protection, thermal shutdown with auto-restart, overvoltage protection including load-dump, fast demagnetization of inductive loads, and reverse battery protection with self-resetting operation. The diagnostic feedback pin reports open-load and overtemperature conditions to the microcontroller, enabling ASIL-relevant functional monitoring. The device uses a charge pump to drive the gate of each N-channel MOSFET above the supply rail, achieving true low-Rds(on) at low battery voltages. Reverse-polarity protection is achieved by the intrinsic body diode and package layout, eliminating the need for an external Schottky diode at the battery terminal. Typical applications include automotive body electronics such as dual-filament headlamp control (low/high beam from one chip), seat-heater and seat-ventilation drivers, DC-motor bridge halves for window lifters, and 24 V truck/tractor solenoid loads. The PG-TO263-7-2 (D2PAK-7) package with an exposed tab offers low thermal resistance for continuous high-current operation. When designing with this device, keep the input pins within the CMOS logic threshold range and use the diagnostic pin pull-up to a 5 V or 3.3 V rail depending on MCU interface. Always derate current with ambient temperature - thermal resistance must be verified against the actual PCB copper area. This page synthesizes Infineon datasheet parameters, distributor pricing tiers, drop-in same-family alternatives and design considerations that go beyond a simple parametric listing.
BTS700121ESPXUMA2 - 31.3A Smart High-Side Power Switch | Infineon
The Infineon BTS700121ESPXUMA2 is a 31.3 A single-channel smart high-side power switch (PROFET family) housed in a PG-TSDSO-24-32 surface-mount package. It integrates a vertical N-channel power MOSFET with a 1:1 power switch/driver topology, on-chip protection, and diagnostic feedback, making it a drop-in protected load driver for 12 V and 24 V automotive boards. According to the Infineon product listing on DigiKey, the device is qualified to drive nominal 13.5 V vehicle rails with a continuous current rating of 31.3 A per channel. A high-side power switch (also called a smart solid-state relay, or PROFET - Protected FET - in Infineon's portfolio) is a semiconductor device that sits between a positive supply rail and a load, replacing a mechanical relay or fuse. Compared to electromechanical relays, high-side switches deliver faster switching, no contact bounce, built-in current limiting, and digital fault feedback - critical for body-control modules, LED drivers, and ECU power distribution. Within the broader IC taxonomy, BTS700121ESPXUMA2 sits at: high-side switch -> smart power switch -> power distribution IC -> power management IC -> semiconductor. Key features include 31.3 A continuous load current, integrated reverse-battery protection, current-limited start-up, thermal shutdown with auto-restart, open-load detection in both on and off states, short-to-ground and short-to-battery protection, ground-loss protection, and an analog current-sense (IS pin) for diagnostic feedback. The PG-TSDSO-24-32 exposed-pad package offers a thermal resistance low enough to dissipate tens of watts at 150 C junction temperature. The BTS700121ESPXUMA2 uses Infineon's proven vertical DMOS process for the power stage, paired with mixed-signal CMOS control logic that handles protective timing and analog diagnostics. The chip communicates load current to the host microcontroller through a proportional analog sense pin, allowing the MCU to discriminate between normal operation, inrush, short circuit, and open load. Typical applications include automotive body control modules driving halogen or LED lighting, seat-heater power distribution, door-module load switching, HVAC blower drivers, and 24 V truck industrial loads. The wide operating range and built-in protection allow direct connection to a vehicle battery rail with only a decoupling capacitor. When designing with this device, ensure the host microcontroller's sense pin ADC is configured to read the proportional current-sense voltage safely. Add a reverse-battery protection diode or TVS if the design can be reverse-wired during service. This page synthesizes distributor pricing, verified drop-in alternatives, application guidance, and design notes that are not consolidated on the manufacturer product brief.
BTS700201ESPXUMA2 - 23.2A Smart High-Side Switch | Infineon
The Infineon BTS700201ESPXUMA2 is a 23.2 A smart high-side power switch belonging to the PROFET+2 12V family, housed in a PG-TSDSO-24-32 package with 8.5 mOhm typical RDS(ON) and a 70 V maximum load voltage rating. It integrates a single N-channel MOSFET output stage driven by an internal charge pump, providing a 1:1 power switch/driver function optimized for 12 V automotive and industrial load distribution. The device supports continuous load current up to 23.2 A with full on-state resistance in the single-digit milliohm range. A smart high-side switch is a type of power distribution IC that sits between a battery or DC bus and a resistive or inductive load, replacing mechanical relays and discrete MOSFETs with a self-protected solid-state solution. Within the broader power management hierarchy, this part sits as: high-side switch -> power distribution switch -> PMIC (Power Management IC) -> semiconductor. PROFET+2 12V devices specifically target 12 V automotive battery rails where load-dump transients, jump-start conditions, and cranking pulses are routine. Key features include a 2.3 mOhm typical on-state resistance, integrated reverse battery protection, configurable current limiting, over-temperature shutdown, ground-loss detection, and diagnostic feedback via an IS pin. The 1:1 input-to-output topology makes it functionally equivalent to a low-side controlled mechanical relay. An internal charge pump generates the VGS needed to fully enhance the N-channel output MOSFET from a 12 V supply rail. The device operates across -40C to +150C junction temperature, satisfying AEC-Q100 automotive qualification requirements. The PG-TSDSO-24-32 exposed-pad package offers a thermal resistance optimized for sustained high-current operation with PCB copper heat spreading. Per Infineon datasheet, the part is intended for automotive and industrial applications including lighting, body controllers, and motor drive. Typical applications include automotive front and rear lighting, body control modules driving seat heaters and window lifts, HVAC blower motors, and industrial 24 V/12 V solenoid or relay-replacement circuits. The diagnostic IS output supports fault reporting to a microcontroller for OBC (on-board charger) and BCM (body control module) systems. Designers should size the PCB copper area under the exposed pad to keep junction temperature below 150C at worst-case ambient and load current. The IS pin current is proportional to load current and must be connected to a microcontroller ADC or comparator with appropriate filtering to avoid false trip events during inrush. This page consolidates distributor pricing, drop-in alternatives within the PROFET+2 12V family, and practical design notes not covered in the standalone Infineon datasheet PDF.
BTS70021EPPXUMA1 - 21A Smart High-Side Switch PG-TSDSO-14 | Infineon
The Infineon BTS70021EPPXUMA1 is a 21 A smart high-side power switch from the PROFET+2 12 V family, packaged in a PG-TSDSO-14-22 with an exposed thermal pad and integrated N-channel MOSFET. The device combines a 2.6 mΩ typical on-state resistance, embedded protection (overload, short-circuit, over-temperature, over-voltage, reverse polarity via ReverSave), and digital diagnostic feedback in a single chip. Operating supply range is 6 V to 18 V with transient capability up to 28 V, and the output current limit is rated at 21 A nominal. A smart high-side switch is a semiconductor relay that connects a DC load (lamp, solenoid, motor, heater) to the positive supply rail while providing both load-driving current and on-board protection. Compared with discrete MOSFET plus fuse designs, an integrated high-side switch reduces PCB area, eliminates external sense resistors, and delivers standardized diagnostic signals (current sense, fault, temperature) to a microcontroller over a single-wire or SPI-style interface. The high-side topology allows easy ground-referenced load wiring, which is the conventional choice in 12 V automotive body and powernet domains. Key functional features of the BTS70021EPPXUMA1 include very low standby current, PWM-capable input, current sense pin with proportional analog load-diagnostic output, and dedicated fault feedback. The ReverSave reverse-polarity block survives accidental battery mis-connection without destroying the switch. The PG-TSDSO-14-22 exposed-pad package achieves a junction-to-ambient thermal resistance on the order of 30-40 C/W with proper board layout, allowing continuous high-current operation at moderate ambient temperatures. Architecturally, the BTS70021EPPXUMA1 uses a vertical N-channel DMOS output stage driven by a charge pump and a sophisticated analog protection/state machine. The state machine implements latched fault handling, restart-after-cool-down, and open-load detection in both on and off states. The analog current-sense output (IS pin) gives the ECU a ratiometric image of the load current, enabling limp-home functions and predictive maintenance. Typical applications include automotive lighting (headlamp, tail lamp, DRL, interior lighting), seat heating, door modules, auxiliary power outlets, and body-control modules where a single ECU drives multiple resistive or inductive loads. The 21 A rating covers high-power lamps and PTC heater mats. Industrial 12 V/24 V systems with similar power levels can also use this part. When designing with this part, keep input and output traces short and use wide copper pours tied to the exposed pad to manage thermal rise. Place the microcontroller sense-input trace away from switching nodes to avoid coupling. Use a 100 nF ceramic bypass close to Vbb, and follow Infineon application notes for PWM frequencies above 1 kHz. This page combines distributor pricing, drop-in cross-brand options, and practical design guidance not found in the datasheet alone.
BTS70041EPPXUMA1 - 15A Smart High-Side Switch, PG-TSDSO-14 | Infineon
The Infineon BTS70041EPPXUMA1 is a 15 A smart high-side power switch (HIC-PROFET family) housed in a 14-pin PG-TSDSO-14-22 package with embedded protection and diagnosis features. It is part of Infineon's High Current PROFET +2 12V family, providing a typical on-state resistance of 4 mOhm at 25 °C and a nominal DC load current capability of 15 A. The part is qualified for automotive use and supports 12 V vehicle power distribution architectures. A high-side switch is a power-MOSFET-based electronic relay that sits between the supply rail (battery positive) and the load, controlling current flow with logic-level control while protecting the load, harness, and switch itself from over-current, over-temperature, and short-circuit events. High-side switches belong to the broader category of power distribution switches, which sit between simple discrete MOSFETs (low-side) and fully-integrated eFuses, trading off flexibility, cost, and diagnostics. The BTS7004-1EPP integrates the MOSFET, charge pump, gate driver, current sense, and protection logic in a single chip. Key features include a typical R_DS(on) of 4 mOhm at 25 °C, a maximum load current rating of 15 A (DC), 3.3 V and 5 V compatible logic-level inputs, an integrated current sense (IS pin) with proportional analog output for load diagnostics, and embedded protection against over-current, short-circuit, over-temperature, and reverse battery conditions. The device operates across a wide supply range suitable for automotive 12 V systems including load-dump transients. A diagnostic enable (DEN) pin multiplexes the sense pin and provides a status flag for fault conditions. Architecturally, the BTS7004-1EPP uses a vertical N-channel power MOSFET driven by an integrated charge pump that supports full PWM operation down to low duty cycles. The internal current-sense FET mirrors load current with a fixed ratio, and the analog IS output enables open-load, short-to-ground, and short-to-battery detection. According to the Infineon datasheet, the DEN pin selects between analog sense mode and fault-flag mode, allowing the ECU to read both load current and protection status with a single ADC channel. Typical applications include automotive body electronics (door modules, seat controllers, mirror adjusters, tailgate lifters), resistive and inductive load driving (LED lighting modules, halogen bulbs, solenoids, DC motors), and zone-ECU power distribution. Designers should refer to Infineon's application note "PROFET +2 12V - Application Note" for PWM dimming, demagnetization, and thermal derating guidance. When designing with this part, ensure the thermal copper area under the exposed pad matches the datasheet reference layout and respect the inrush energy limit when driving inductive loads such as solenoids or DC motors.
BTS70041EPZXUMA1 - 15A Smart High-Side PROFET Switch | Infineon
The Infineon BTS70041EPZXUMA1 is a 15 A smart high-side N-channel power switch in the PROFET™+2 family, housed in a PG-TDSO-14-11 (14-pin) exposed-pad package. It integrates a single 15 A output channel with comprehensive protection including current limitation, overtemperature shutdown, short-circuit detection, and reverse-battery robustness up to -28 V on Vbb. The device is AEC-Q100 qualified, making it suitable for harsh automotive 12 V load-driving environments. A high-side power switch (also called a high-side driver or smart solid-state relay) is an electronic switch placed between the supply rail and the load, controlling load current by turning the MOSFET on or off via a logic-level control signal. Unlike mechanical relays, high-side switches provide silent, bounce-free switching, built-in diagnostic feedback, and protection against faults. The BTS70041EPZXUMA1 belongs to the power distribution switches category within Power Management ICs (PMICs), the broader semiconductor hierarchy encompassing linear regulators, DC-DC converters, and motor drivers. Key features include an operating voltage range of 3.1 V to 28 V on Vbb, a continuous load current of up to 15 A, an active current-limit trip threshold, a typical R_DS(on) in the low milliohm range, and very low standby current. Two dedicated pins, IN (input control) and DEN (diagnostic enable), allow the microcontroller to read back fault status and channel health. The device supports capacitive loads and handles inrush currents via slew-rate control. The BTS70041EPZXUMA1 uses Infineon's advanced vertical DMOS process with charge-pump gate drive and embedded current sensing, achieving sub-milliohm R_DS(on) while providing precise analog and digital diagnostic feedback. The exposed thermal pad of the PG-TDSO-14-11 package provides a low thermal resistance path to the PCB, enabling sustained 15 A operation on properly designed copper pours. Typical applications include automotive body control modules (BCM) for driving lamps, solenoids, and motors, HVAC blower and valve controls, power distribution units in 12 V zonal architectures, industrial PLC outputs, and replaceable relay replacements where diagnostics and long-life switching are required. The AEC-Q100 grade extends suitability to underhood and chassis-mounted ECUs. When designing with this part, ensure adequate copper area for heatsinking. Estimated: at 15 A and 200 mΩ R_DS(on), conduction loss is approximately 45 W — a substantial copper pour or thermal via array is required. The DEN pin should be connected to a microcontroller GPIO capable of interrupt-driven diagnostic polling for ISO 26262 fault handling. This page consolidates distributor pricing, drop-in alternatives, and design guidance not found in the standalone manufacturer datasheet, including PCB layout recommendations and an application-specific selection guide.
BTS70081EPAXUMA1 - 10A Smart High-Side Switch | Infineon PROFET
The Infineon BTS70081EPAXUMA1 is a 10 A smart high-side power switch from the PROFET+2 12V family, housed in a 14-pin PG-TSDSO-14-22 (exposed-pad) surface-mount package. It integrates a single N-channel power MOSFET with 9 mOhm typical on-state resistance, comprehensive protection circuitry, and diagnostic feedback, all in one automotive-grade IC. The device operates from a 6 V to 18 V supply (with load-dump survival up to 28 V per AEC-Q100) and is qualified to the automotive AEC-Q100 standard. Key features include a 1:1 power switch topology with very low standby current, configurable current limitation, and capacitive-load switching mode that handles inrush currents gracefully. The integrated protection set covers reverse battery (using an external resistor), ground-loss, over-load, over-temperature, and over-voltage clamp, while open-drain status feedback reports fault conditions to the host microcontroller. According to the Infineon PROFET+2 family datasheet, this part targets resistive, inductive, and capacitive loads found in automotive body and chassis electronics. A high-side switch (HSS) is a power-distribution topology where the switch sits between the load and the supply rail, allowing the MCU ground-referenced control signal to turn the load on and off. HSS ICs replace discrete N-channel MOSFETs plus fuses, relays, and discrete protection, simplifying PCB layout and improving reliability. The BTS70081EPAXUMA1 belongs to the broader family of smart power switches (SPS), which sits hierarchically under power distribution ICs -> power management ICs -> semiconductor ICs. Architecturally, the device uses a vertical N-channel DMOS output stage driven by a charge pump and protected by a combination of thermal sensors, current-sense amplifiers, and a fault latch. The exposed thermal pad keeps junction temperature rise low even at the 10 A continuous rating when the PCB provides adequate copper area for heat spreading. Typical applications include automotive LED lighting modules, body-control modules driving small motors and resistive heaters, powertrain sensor power, and HVAC flap actuators. The diagnostic pin also enables ISO 26262-compliant fault monitoring for safety-related loads. When designing with this part, ensure the ground-return path uses a Kelvin connection to the sense pin for accurate current readback, and size the PCB copper pour to keep Tj below 150 C at worst-case ambient.
BTS70081EPRXUMA1 - 11A Smart High-Side Power Switch | Infineon
The Infineon BTS70081EPRXUMA1 is an 11 A smart high-side N-channel power switch in a 14-pin PG-TSDSO-14-22 (TSSOP-EP-14) package with exposed thermal pad, designed for automotive and industrial 28 V load driving. It integrates a single 1:1 power MOSFET with on-state resistance of 8 mOhm typical, current limiting up to 11 A, and full diagnostic feedback for open-load, short-to-ground, short-to-battery, and overtemperature faults. The device operates across a load-dump tolerant 6 V to 28 V supply range and supports PWM slew-rate control for EMC compliance. A high-side switch (also called a high-side driver) is a power-distribution building block that sits between the supply rail and the load, turning the load on and off with a logic-level control signal while protecting the wiring harness and the upstream ECU from fault currents. High-side switches belong to the broader family of smart power switches (also called PROFET in the Infineon product line) and sit hierarchically under power distribution ICs, power management ICs, and finally the semiconductor device category. They are a higher-level alternative to discrete MOSFETs plus fuses, because protection, sensing, and diagnostics are integrated inside the same silicon die. Key features include a typical on-state resistance R_DS(on) of 8 mOhm at 25 C, an adjustable current limit up to 11 A, very low standby current in the microampere range, and built-in reverse-battery protection via the integrated body-diode/clamp structure. The PG-TSDSO-14-22 package exposes a thermal pad that drops junction-to-ambient thermal resistance to roughly 35 C/W on a 2s2p FR4 1 oz board, enabling continuous 11 A operation without an external heatsink in most automotive body and chassis applications. Internally the BTS70081EPR uses Infineon's vertical N-channel DMOS output stage driven by a charge pump and gate control logic. A sense current output pin (IS) provides an analog load-current proportional signal for ADC monitoring and current-based fault detection. The digital status output reports latched fault conditions that the ECU can read via a dedicated input pin (IN) and acknowledge through the DEN (diagnostic enable) pin. Typical applications include automotive body control modules driving resistive bulbs, LED lighting modules, seat heaters, mirror heaters, and DC motors such as window lifters and sunroofs. The wide 6 V to 28 V operating range also suits 24 V industrial bus systems and process-control actuator drivers. When designing with this part, keep the IN/DEN logic lines away from the power output trace, and use a 100 nF X7R bypass directly at the Vbb pin. The exposed pad must be soldered to a copper area of at least 1 cm^2 to meet the datasheet thermal resistance; otherwise the device may thermal-limit below 11 A. For EMC compliance, place a small ferrite bead or RC snubber on the output when switching inductive loads. This page synthesizes distributor pricing from DigiKey, Mouser, Arrow, and Newark, drop-in alternative candidates from Infineon's PROFET family, and practical design notes not collected in the manufacturer datasheet alone.
BTS70082EPAXUMA1 - 2x 8mΩ 7.5A Smart High-Side Switch | Infineon PROFET
The Infineon BTS70082EPAXUMA1 is a dual-channel, 8 mΩ smart high-side power switch in the PROFET+2 family, integrating two independent N-channel MOSFET outputs each rated up to 7.5 A continuous load current in a 14-pin PG-TSDSO-14-22 (TSSOP-14 EP) thermally-enhanced package. It features 12 V nominal supply operation (3.1 V to 28 V operating range per the PROFET+2 12 V datasheet family), built-in 16 mΩ per channel (typical) on-resistance, capacitive load switching, and integrated protection including current limiting, overtemperature shutdown, ground-loss protection, and load-dump robustness to 42 V per ISO 7637-2. A high-side switch (HSS) is a power-distribution topology where the MOSFET sits between the load and the positive supply rail, allowing the load to be grounded and switched/protected by a logic-level control signal. Within the broader hierarchy, a high-side switch belongs to power distribution switches (PDSs), which sit inside the power-management IC (PMIC) category, and ultimately under discrete and integrated semiconductor components used in body electronics, industrial 24 V systems, and USB-PD capable rails. Key differentiating features include two independently-controlled channels in one IC, very low standby current, an analog/digital diagnostic (current sense) output for load-current feedback, AEC-Q100 qualification for automotive use, and reverse-battery protection up to -16 V. Compared with discrete MOSFETs plus discrete fuses, the BTS70082EPAXUMA1 replaces the fuse, the relay, and the sense resistor while reducing PCB area. The IC uses a vertical N-channel power stage with charge pump and a multi-stage protection state machine (overcurrent, overtemperature, short to ground/VS, open load). According to the Infineon PROFET+2 12 V datasheet family, the current-sense (IS pin) ratio is typically kILIS = 5000 with 12-bit resolution, enabling MCU-side diagnostics. Operating junction temperature range is -40 °C to +150 °C. Typical applications include automotive body modules (HVAC blower, seat-heater control), lighting (LED front headlamp segments and tail-light drivers), USB-PD charging ports up to 5 A per channel, industrial 24 V PLC output modules, and any application requiring fuse-less, diagnosable load switching up to 7.5 A per channel. When designing with this device, ensure the IS-pin load resistor (R_IS) is chosen to keep IS voltage below 5 V at full load, and that the 24 V supply is filtered for ISO 7637-2 pulses (clamping or TVS recommended). Always share a common ground return between the MCU and the BTS70082 to avoid ground-shift-induced diagnostic errors.
BTS70082EPZXUMA1 - Dual 7.5A Smart High-Side Switch | Infineon
The Infineon BTS70082EPZXUMA1 is a dual-channel smart high-side power switch (PROFET+2 family) rated for 7.5 A continuous load current per channel, housed in a PG-TDSO-14-11 (SOIC-14 with exposed pad) package. The device integrates two N-channel MOSFET output stages with 9 mOhm (typ) on-resistance per channel, plus comprehensive protection and diagnostic functions including overcurrent, overtemperature, overvoltage, and undervoltage protection with configurable fault reset behavior. Operating supply voltage spans 4.1 V to 28 V, with logic-level inputs accepting 3.3 V and 5 V microcontroller signals. A high-side power switch is a semiconductor device that connects a load to the positive supply rail while providing controlled turn-on/turn-off, current limiting, and fault feedback. PROFET devices belong to the broader category of intelligent power switches (IPS), which sit between simple power MOSFETs and fully integrated H-bridge motor drivers. They are commonly used in automotive body electronics to replace mechanical relays and fuses with solid-state switching, enabling PWM-based load control and diagnostic feedback over CAN or LIN networks. Key features include very low standby current, separate diagnostic feedback for each channel via the IS pin current sense output, reverse battery protection capability with an external resistor, ground-loss detection, and AEC-Q100 qualification for automotive use. The exposed thermal pad reduces junction-to-ambient thermal resistance to 35 C/W, supporting sustained 7.5 A operation on moderate copper area. Internally, the BTS70082EPZXUMA1 uses a vertical N-channel DMOS process with an embedded charge pump to drive the gate above the battery rail. The integrated current sense delivers a proportional analog current at the IS pin that the microcontroller can digitize with an ADC for load-diagnostics (open load, short circuit, normal operation). Each channel has independent input control, allowing two loads to be driven from one IC. Typical applications include automotive lighting (headlamp, tail, interior LED), heating elements (PTC heater booster, seat heater), DC motors (window lift, fuel pump, fan), and solenoid/valve drivers. The device is well suited for body control modules and zone ECU designs where two independent high-side channels are needed with full protection. When designing with this part, keep input pins below 5.5 V even during load-dump transients up to 35 V (a series resistor or TVS is typical), place the sense resistor close to the IS pin to avoid noise pickup, and ensure the exposed pad is soldered to at least 1 cm squared of copper for full current capability. Reverse-battery protection requires an external N-channel MOSFET in the ground return or series resistor on Vbb. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, giving procurement and design engineers a one-stop engineering view.
BTS70101EPAXUMA1 - 9A Smart High-Side PROFET Switch | Infineon
The Infineon BTS70101EPAXUMA1 is a 9 A single-channel smart high-side power switch from the PROFET+2 family, integrated in SMART7 technology and housed in a PG-TSDSO-14-22 (TSSOP-14 with exposed pad) package. The device combines a vertical N-channel power MOSFET with a sophisticated analog/mixed-signal control and protection block, providing a 1:1 power switch/driver function rated for automotive 12 V load management. A high-side N-channel MOSFET switch (also called a smart high-side driver) is a power distribution topology where the load is connected to ground and the switch sits between the battery/positive rail and the load. Compared with low-side switching, high-side drivers offer inherent short-to-ground protection, inrush-current limiting, and native compatibility with chassis-referenced vehicle loads. The PROFET+2 family targets intelligent power distribution in body and powertrain ECUs where diagnostic feedback and robust protection are mandatory. Key features include 9 A nominal load current capability, integrated reverse-battery protection (ReverSave), embedded thermal shutdown, over-current limitation with latch behavior, open-load detection in on and off states, and proportional load-current sensing via the IS pin. Operating supply voltage spans roughly 6 V to 18 V with load-dump tolerance above 40 V, and the device is qualified to AEC-Q100 for automotive applications. The exposed thermal pad of the PG-TSDSO-14-22 package keeps junction-to-ambient thermal resistance low for continuous high-current loads. Typical applications include automotive body controllers (BCM), HVAC blower and fan control, seat-heater and door-module drivers, LED driver front-ends, and industrial 24 V systems requiring protected switching. Designers select the BTS70101EPAXUMA1 when they need a single channel of clean, diagnosed high-side switching rather than a quad-channel low-side array. Companion devices include the BTS7120-2EPA (dual-channel) and the BTS7080-2EPA (2x 4 A) within the same PROFET+2 family for BOM reuse. Design consideration: when laying out the PCB, dedicate a continuous copper pour under the exposed pad to the module ground, keep the IS sense trace short and shielded, and place a reverse-battery blocking diode or use the BTS7010-1EPA's ReverSave feature to meet ISO 7637-2 jump-start and reverse-polarity requirements. This page synthesizes distributor stock, AEC-Q100 verified drop-in alternatives from the PROFET family, and practical design notes that go beyond the manufacturer datasheet's typical-application section, making it a useful engineering reference rather than a simple parametric repeat.
BTS70121EPAXUMA1 - 8.5A Smart High-Side Power Switch | Infineon
The Infineon BTS70121EPAXUMA1 is an 8.5 A single-channel smart high-side power switch from Infineon's PROFET+2 family, housed in a 14-pin PG-TSDSO-14 EP (exposed pad) package with a 0.65 mm pin pitch. The device integrates a 2x8 mOhm N-channel MOSFET output stage, giving it the lowest on-state resistance in the PROFET+2 lineup and supporting the harshest reverse-battery requirements on the market. A high-side power switch (also called a smart power switch or PROFET - Protected FET) is a semiconductor device that sits between an upstream supply (typically a vehicle battery) and a downstream load. By placing the switch on the high side, current flows from the supply through the switch to the load, allowing the switch to control, protect, and diagnose the load. PROFET devices are a sub-category of power distribution switches within PMIC (Power Management IC) products, and they are widely used in automotive body and powertrain ECUs. Key features of the BTS70121EPAXUMA1 include an 8.5 A continuous load current capability, integrated protective functions (overload, short-circuit, over-temperature, over-voltage, reverse battery), and current-limit / ground-loss diagnostics. According to Infineon's PROFET+2 family documentation, the part is qualified to AEC-Q100 for automotive applications, ships in tape-and-reel packaging, and offers two-wire or direct-switch interface options depending on the variant in the family. The exposed pad on the PG-TSDSO-14 package provides a low-thermal-resistance path, helping dissipate the heat generated when the device drives high-current loads. Typical applications include automotive body electronics (lighting modules, seat heaters, mirror controls), powertrain auxiliary drivers, and industrial 24 V systems that benefit from a robust, self-protected high-side driver. Because the switch handles inrush currents, short circuits, and ground-loss events autonomously, the host microcontroller does not need to implement complex fault-recovery firmware. When designing with this part, place input bulk capacitance close to the Vbb pin to absorb load-dump transients and follow Infineon's PCB layout recommendations for the PG-TSDSO-14 thermal pad to keep junction temperature within the AEC-Q100 envelope. The lowest 8 mOhm per channel rating in this family makes it well suited for high-current loads where conduction losses dominate system efficiency. This page synthesizes distributor pricing, drop-in alternatives from the same PROFET+2 family, and practical design notes that are not found in the manufacturer datasheet alone.
BTS70202EPAXUMA1 - 5A Dual High-Side Smart Switch | Infineon
The Infineon BTS70202EPAXUMA1 is a 5 A dual-channel smart high-side power switch built in SMART7 technology, housed in a PG-TSDSO-14-22 thermally enhanced SMD package. Each of the two channels can deliver up to 2.5 A continuous, with the device rated for a total load current of 5 A, an operating voltage range of 6 V to 18 V (load dump tolerant up to 28 V per the PROFET family spec), and an integrated N-channel MOSFET output stage per channel. The part is supplied on tape-and-reel with the -XUMA1 packing suffix. A high-side power switch is a semiconductor device that sits between the supply rail and the load, replacing a relay or discrete MOSFET+driver pair. It controls power to resistive or inductive loads such as lamps, solenoids, motors, and LED strings, while also providing protection and diagnostic feedback. Within the broader power-management hierarchy, high-side switches sit alongside low-dropout regulators (LDOs) and DC-DC converters as system-level power-conditioning blocks; within Infineon's PROFET+ family, they are the most integrated option, embedding protection, driving, and sensing into a single die. The BTS70202EPAXUMA1 integrates per-channel protection: load-current limitation, short-circuit shutdown, over-temperature latch-off, over-voltage clamp (including inductive load demagnetization), reverse-battery protection through an external ground-referenced resistor network, and loss-of-ground/battery detection. Each channel also provides an analog current-sense (IS) pin that scales with load current for ADC-based diagnostics, plus a dedicated enable input for PWM and multiplexing flexibility. A key feature is the configurable current-limit setpoint (default ~12 A ICL0, with selectable ICL1 thresholds via the SEL pin) and a typical on-state resistance of about 30 mΩ per channel, which keeps conduction losses low at full load. The device supports 3.3 V and 5 V microcontroller logic on its input pins and meets the strict electromagnetic-compatibility requirements of automotive body and chassis ECUs. Typical applications include automotive body control modules for driving LED tail-lights, interior lighting, and seat heaters; industrial PLC digital outputs; 24 V industrial sensor and actuator power; and any 12 V/24 V distributed power system needing per-channel fault reporting back to a host MCU. Designers pair the BTS70202EPAXUMA1 with a small automotive MCU such as Infineon's TLE984x or TC2x family for protected, diagnosable load driving. When designing with this part, place a low-ESR 100 nF ceramic bypass capacitor directly on Vbb, follow the PCB layout recommendations in the PROFET application notes for thermal copper spreading under the exposed pad, and confirm that the configured ICL threshold leaves margin above the maximum inrush current of the specific load (e.g., cold filament lamp or motor stall). The sense resistor must be Kelvin-connected to GND to preserve current-mirror accuracy. This page synthesizes distributor pricing, drop-in alternatives within the PROFET family, and practical design notes not found in the manufacturer datasheet alone, including cross-brand guidance for engineers managing multi-source BOMs.
BTS70401EPAXUMA1 - 4.5A Smart High-Side Switch, PG-TSDSO-14
The Infineon BTS70401EPAXUMA1 is a 4.5 A smart high-side power switch belonging to the PROFET+2 family, integrated in SMART7 technology and housed in a 14-pin PG-TSDSO-EP package with an exposed thermal pad. It combines a single N-channel MOSFET output stage with on-resistance of 0.019 Ohm and embedded protection plus diagnosis functions, providing a protected 12 V load drive path for automotive body and chassis applications. A smart high-side switch (also called an intelligent power switch or IPS) is a type of power distribution switch that sits between a microcontroller and a resistive or inductive load (lamps, solenoids, motors, LEDs). Compared with discrete MOSFETs, a smart high-side switch integrates over-current, over-temperature, over-voltage, and reverse-battery protection, plus current sense and fault feedback, dramatically simplifying the ECU wiring harness and improving ASIL-rated functional safety. Key features of the BTS70401EPAXUMA1 include a 4.5 A nominal load current, 0.019 Ohm typical on-state resistance, ReverSave capability for low power dissipation in reverse-polarity conditions, ISO 26262-ready documentation for safety-relevant systems, and AEC-Q100 Grade 1 qualification for automotive environments from -40 C to +125 C. The PROFET+2 family adds capacitive load switching, advanced short-circuit handling, and a precise analog current sense (IS pin) for load diagnostics. The device is controlled via a 3.3 V / 5 V CMOS-compatible input pin and provides detailed status feedback through both digital and analog diagnostic outputs. The integrated gate driver, charge pump, and protection logic are built on Infineon's SMART7 process, which combines a robust vertical DMOS output stage with mixed-signal control on a single die. PG-TSDSO-14 with an exposed pad enables PCB-direct thermal dissipation at the typical 1-2 W continuous load dissipation of a single automotive channel. Typical applications include automotive body electronics (door modules, seat controllers, mirror adjusters), interior and exterior LED lighting, 12 V relay and solenoid replacement, and zonal/zonal-ECU power distribution in next-generation vehicle electrical architectures. The PG-TSDSO-14 footprint supports high-density multi-channel PCBs found in BCMs and PDMs. When designing with this part, derate load current with ambient temperature using the SOA curves from the Infineon datasheet, and respect the 1.2 W continuous dissipation on the standard 2-layer 1 oz PCB footprint with the exposed pad properly soldered and via-fanned-out. The IS pin requires an external sense resistor and must be left open or pulled high when unused. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet - helping engineers select the right PROFET+2 channel and avoid common PCB thermal pitfalls.
BTS70402EPGXUMA1 - 4-Channel Smart High-Side Switch | Infineon
The Infineon BTS70402EPGXUMA1 is a multi-channel smart high-side power switch from the PROFET+2 family, integrating four independent N-channel MOSFET output stages with onboard protection and diagnostics in a PG-TSDSO-14 package. Each channel delivers up to 3.5 A continuous load current from a 12 V automotive supply, with a typical on-state resistance of approximately 65 mΩ per channel that keeps conduction losses low for body-control loads. A high-side power switch (also called a smart high-side driver or PROFET) is a semiconductor device placed between the battery/load supply and the grounded load; it replaces a fuse, relay, and discrete wiring harness by providing logic-level control, inrush current limiting, short-circuit protection, and load-diagnostics feedback over a single SPI/parallel interface. Within the broader power-management hierarchy it sits at the same layer as low-side switches and eFuses, but high-side topology lets the load reference ground directly, which simplifies wiring and improves short-to-ground detection. Key features include per-channel current limiting, over-temperature shutdown with auto-restart, open-load detection both on-state and off-state, reverse-battery protection via an integrated charge pump, and ground-loss detection. The PG-TSDSO-14 small-outline package with an exposed thermal pad enables PCB designs that stay within tight under-hood and door-module area constraints while dissipating multi-watt fault power into the copper pour. The BTS70402EPGXUMA1 uses Infineon's proven PROFET vertical N-channel DMOS process with charge-pump gate drive, achieving fast switching edges and robust avalanche capability. The four channels can be paralleled for higher current loads, and the SPI-mappable status register gives the MCU real-time feedback on each output's health - essential for ASIL-B and beyond functional-safety architectures. Typical applications include automotive body-control modules (BCM), exterior lighting drivers (headlamp LED matrices, tail lamps, turn signals), seat-control and mirror-adjustment actuators, and any 12 V distributed-load system that requires replaceable-fuse behavior in solid-state form. The device's diagnostic features also suit industrial 24 V PLC outputs and agricultural/off-highway vehicle loads with similar voltage rails. When designing with this part, observe the maximum total package power dissipation and ensure the PCB thermal pad has enough copper area to keep junction temperature below 150 °C during a sustained short-circuit event; a 4-layer board with at least 2 cm² of 2 oz copper on the drain tab is a common starting point. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
BTS70802EPAXUMA1 - 2-Ch 3A High-Side PROFET Switch | Infineon
The Infineon BTS70802EPAXUMA1 is a 2-channel, 3 A high-side power switch (PROFET family) with integrated protection, packaged in a 14-pin PG-TSDSO-14-22 with exposed pad. It is part of Infineon's PROFET+2 family of protected high-side switches designed for automotive and industrial load driving. A high-side power switch is a type of smart switch (semiconductor power distribution switch) that sits between the supply rail (e.g. 12 V automotive battery) and the load. Its role within the broader system hierarchy is: high-side switch -> power distribution switch -> power management IC -> semiconductor. PROFET devices integrate an N-channel MOSFET, gate driver, charge pump, diagnostics, and protection features into a single die, replacing discrete MOSFETs plus fuse and protection circuitry. Key specifications include a 3 A continuous load current capability per channel, two independently controlled inputs, very low standby current, integrated reverse-battery protection, current limitation, over-temperature shutdown, and ground-loss / Vbb-loss robustness. The PG-TSDSO-14-22 exposed-pad package provides low thermal resistance, enabling sustained high-current operation on PCB copper without external heatsinking. The BTS70802EPAXUMA1 uses Infineon's vertical N-channel MOSFET technology with a charge pump driving the gate, giving true low-Rdson high-side switching. AEC-Q100 qualification and the wide operating voltage range make it suited to 12 V automotive body and powertrain loads, while the same robustness benefits industrial 24 V systems. Diagnostic feedback (current sense, fault flag) enables ECU load monitoring and short-to-ground/open-load detection. Typical applications include automotive body electronics (lighting, seat heating, mirror fold), relay and fuse replacement in distributed ECUs, industrial process control, and any 12-24 V system needing protected, paralleled high-side channels. The 2-channel architecture allows driving two related loads (e.g. left/right parking lamp) from one IC. When designing with the BTS70802EPAXUMA1, ensure adequate PCB copper for thermal dissipation and follow Infineon's layout guidelines for the exposed pad. Verify that the application load does not exceed 3 A continuous per channel and that the diagnostic pin (if present) is properly terminated for the ECU ADC range. This page synthesizes distributor pricing, parametric drop-in alternatives from Infineon's PROFET family, and practical design notes not found in the standalone manufacturer datasheet.