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TPS25942ARVCT - 5A eFuse Power MUX 20-WQFN | Texas Instruments
The Texas Instruments TPS25942ARVCT is a 5-A eFuse Power MUX in a 20-pin WQFN (RVC) package that operates from 2.7 V to 18 V with an integrated 42 mΩ on-resistance. The device delivers full protection features including reverse current blocking, programmable current limit, thermal shutdown, and power-good (PG) signaling, plus a current monitor (IMON) pin for real-time load monitoring. Per TI product page, the TPS25942A family supports adjustable current thresholds from 0.6 A to 5.2 A. An eFuse (electronic fuse) is a solid-state power management IC that replaces traditional fuses and discrete hot-swap circuits. The TPS25942A integrates back-to-back MOSFETs that block reverse current when two power sources are present, making it ideal for power muxing between primary and backup supplies, USB Type-C PD source selection, and battery-backed systems. Within the broader IC taxonomy, an eFuse belongs to the power management IC family alongside hot-swap controllers, load switches, and supervisors. Key features include ±5% current limit accuracy at 4 A, fast overcurrent response (sub-microsecond), 0.6 A to 5.2 A adjustable threshold via ILIM resistor, built-in thermal shutdown with auto-retry, fault output (FLT), power-good indicator, and IMON current sense output that outputs a current proportional to load current. The TPS25942A supports operating junction temperatures from -40 °C to +125 °C and is available in a thermally enhanced 3 mm × 4 mm WQFN package. The TPS25942A uses TI's back-to-back N-FET architecture with analog control loops for current regulation and reverse current blocking. The two integrated FETs share a common drain between the two source pins, allowing independent channel control for hot-swap and power muxing. Per TI product page, the device supports up to 5 A continuous current with internal charge pump providing gate drive, and fault timers configurable via CT pin capacitor. Typical applications include USB Type-C PD port protection, hot-swap insertion in servers and storage, RAID/NAS redundant power muxing, battery-backed systems, point-of-load protection in industrial 12 V rails, and eMMC/UFS power rail protection. The wide 2.7 V to 18 V operating range makes it suitable for both 3.3 V and 12 V bus architectures commonly found in computing and embedded designs. When designing with the TPS25942ARVCT, ensure the IMON resistor is sized per the load current range, and place input/output capacitors close to the IC to suppress transients during hot-plug events. The CT capacitor sets fault timer duration and must be chosen based on the expected inrush current of the load capacitance. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
TPS259470ARPWR - 5.5A eFuse w/ Reverse Polarity Protection | TI
The Texas Instruments TPS259470ARPWR is a 5.5 A, 28 mΩ true reverse-current-blocking electronic fuse (eFuse) with integrated input reverse polarity protection, housed in a 10-pin VQFN-HR (RPW) 2x2 mm package. It operates from 2.7 V to 23 V input and is characterized for junction temperatures from -40 °C to +125 °C. The device integrates a low-impedance N-channel MOSFET, programmable current limit, overvoltage lockout, and fast fault response to protect downstream loads from inrush, short circuit, and incorrect adapter polarity events. An electronic fuse (eFuse) is a solid-state power switch and protection IC that replaces traditional PTC fuses, Schottky OR-ing diodes, and discrete hot-swap circuits. It sits between a system input rail and downstream converters, providing controlled turn-on, accurate current limiting, and fast interruption on fault. The TPS259470 in particular is part of TI's hot-swap/eFuse family that combines input reverse polarity protection, true reverse-current blocking (does not rely on body diode conduction), programmable overvoltage, and fault output signaling in one IC. Key specifications include a 28 mΩ typical on-resistance, 5.5 A continuous load current capability, adjustable overvoltage lockout, active current limit with auto-retry response, and an open-drain fault indicator (FLT). The integrated reverse polarity protection eliminates the need for a series input Schottky diode, reducing conduction loss by typically 30-60% versus traditional reverse-polarity Schottky solutions, while true reverse-current blocking prevents back-feeding when a higher-voltage adapter is hot-plugged in parallel with a lower-voltage source. Architecturally, the TPS259470 uses an internal N-channel MOSFET with a charge-pump gate driver, a precision current-sense amplifier, and a fault state machine. The 2.7 V UVLO ensures clean startup in low-voltage USB-PD and industrial 5 V/12 V/19 V/20 V rails. Because the IC is characterized for -40 °C to +125 °C junction and is available in a thermally enhanced VQFN-HR 2x2 mm package, it is suitable for compact, high-ambient-temperature applications where PCB area is at a premium. Typical applications include USB Type-C / USB-PD source and sink protection, multi-port USB hubs, industrial PLC and sensor power rails, telecom router line cards, and battery backup systems. The device is especially useful wherever an adapter, battery, or USB-PD source must be hot-plugged into a live system without causing inrush latch-up or back-power through the input. When designing in, keep input/output traces short and use low-ESR ceramic bypass capacitance close to VIN and PGND. The TIMER capacitor sets the fault retry interval and must be sized for the actual upstream supply ramp rate. Always cross-check thermal dissipation versus continuous load to avoid triggering thermal shutdown in enclosed adapters. This page distills datasheet values, drop-in alternatives, and design notes not available on the manufacturer summary page to help engineers select and implement the part quickly.
TPS259533DSGT - 2.7-18V, 4A eFuse w/ OVP | TI | WSON-8
The Texas Instruments TPS259533DSGT is a 2.7 V to 18 V, 34 mΩ, 0.5 A to 4 A integrated eFuse (hot-swap FET) with fast overvoltage protection in an 8-pin WSON (DSG) 2x2 mm package. The '533' suffix denotes the 13.7 V OVP clamp variant, the 'DSG' is the WSON package designator, and the final 'T' indicates Tape-and-Reel packaging. An eFuse (electronic fuse) is a semiconductor power switch that combines a back-to-back MOSFET, current-limit loop, OVP/UVLO comparators, and thermal foldback into a single IC, replacing discrete hot-swap controllers plus an external FET and sense resistor. In the broader taxonomy it is a hot-swap controller > load switch > power management IC > semiconductor. Engineers reach for an eFuse when they need a controlled inrush, fast fault isolation, and a small board footprint on rails such as 5 V, 12 V, or USB-PD VBUS. Key features of the TPS259533DSGT include a 34 mΩ typical RON (full internal FET), a 0.5 A to 4 A adjustable current-limit range set by a single external resistor, a 5 µs OVP response time with a 13.7 V clamp (the highest of the three TPS2595xx OVP options), an operating input voltage of 2.7 V to 18 V (20 V abs max, 18 V for the 'xx5' version), and integrated thermal shutdown. The WSON-8 2x2 mm package offers a low θJA footprint suitable for space-constrained adapter and PoE daughter boards. Internally the device uses TI's NMOS hot-swap architecture with an integrated charge pump to drive the back-to-back FETs. The OVP comparator continuously monitors VIN against the internal 13.7 V reference and latches the FET off in microseconds when exceeded, then auto-retries when VIN returns below the clamp. Current limit is set by an external resistor on the ILIM pin and is further trimmed by the die temperature for a true I²t fault profile, distinguishing it from simple polyfuse or P-channel load switches. Typical applications are 12 V hot-swap rails in industrial PCs, USB-PD source protection, fan and motor driver supply protection, and any 12 V/15 V adapter-fed rail that may see transients above the rated voltage. It is also used as a downstream companion after a buck converter to add resettable fault protection. When designing in this part, route VIN, VOUT, and the thermal pad with wide copper pours; the internal FET dissipates I²S x RON continuously during a fault. Place the ILIM resistor as close to pin 6 as possible to avoid noise pickup on the current-limit loop. This page consolidates distributor pricing, verified drop-in alternatives, and engineering design guidance that go beyond the datasheet's feature list.
TPS25990ARQPR - 16V 60A Stackable eFuse | Texas Instruments
The Texas Instruments TPS25990ARQPR is a 2.9 V to 16 V, 0.79 mΩ, 60 A stackable electronic fuse with digital telemetry in a 26-pin VQFN-HR package measuring 5 mm by 4.5 mm. It integrates high-current circuit protection, telemetry, and PMBus-compatible control for compact industrial power systems. An electronic fuse, or eFuse, is a semiconductor circuit protector placed between a power source and a load. Unlike a fuse that permanently opens during an overload, an eFuse can detect current or voltage faults, interrupt current rapidly, report operating data, and recover under software control. In the power-management hierarchy, the TPS25990 belongs to the eFuse, current-regulation, and circuit-protection IC class. The verified source data identifies a 0.79 mΩ typical integrated on-resistance, 50 A RMS continuous rating, and 60 A peak rating. Its 2.9 V to 16 V operating range suits lower-voltage distribution rails, while the PMBus digital telemetry controller supports real-time monitoring, control, and configuration. Protection functions address overloads, short circuits, and excessive inrush current with minimal external circuitry. Technically, the device combines a low-resistance power FET with a high-current protection and telemetry architecture in one compact package. The reported 20 V absolute maximum input rating provides design headroom above the normal 16 V operating limit, and the output path withstands reverse voltage down to -1 V. These specifications make rail-to-rail protection more practical than discrete fuse-and-discharge arrangements. Typical uses include 12 V industrial equipment, rack and server power distribution, high-current storage systems, telecom boards, test equipment, and protected DC input ports. In a 12 V design, designers should preserve copper width and thermal layout capable of handling sustained current while also accounting for transient heating, fault response, telemetry wiring, and configured current thresholds. A critical design step is checking PCB current capacity and thermal performance against the required RMS load rather than relying only on the device rating. The VQFN-HR thermal pad and surrounding copper should be laid out according to the manufacturer datasheet, while input and output loops should be kept compact to preserve the advantage of the integrated 0.79 mΩ FET. This page consolidates verified manufacturer and distributor information, separates confirmed specifications from unavailable data, and avoids presenting unsupported pin, price, or cross-brand replacement claims. It also provides practical procurement and design guidance for engineers evaluating this high-current protection device.
TPS26400PWPR - 42V 2A eFuse w/ Reverse Polarity | Texas Instruments
The Texas Instruments TPS26400PWPR is a 42-V, 2-A industrial eFuse (electronic fuse) with integrated reverse-input polarity protection, housed in a 16-pin HTSSOP (PWP) package with an exposed thermal pad. It is designed for 4.5 V to 42 V operation and integrates a low-impedance N-channel MOSFET pass element, programmable current limit, and reverse-input blocking in a single IC. An eFuse (electronic fuse) is a solid-state circuit-protection device that replaces a traditional glass-cartridge fuse or PTC with an integrated MOSFET-based switch. It detects overcurrent, overvoltage, short-circuit, and reverse-polarity faults in microseconds, then either latches off or auto-retries depending on configuration. Within the broader system hierarchy, eFuses sit between discrete protection components (TVS diodes, PTC) and supervisor ICs in the power-management block, providing fast, resettable protection for downstream rails loads. Key features of the TPS26400PWPR include an integrated back-to-back FET topology for true reverse-input blocking down to -42 V, an adjustable current-limit threshold set by an external resistor (RILIM), programmable inrush current slew rate via SS pin, and a fault output (FLT) for system telemetry. The device operates over the -40 °C to +125 °C industrial temperature range and offers an IMON current-monitor output for accurate load-current measurement. The TPS26400PWPR uses TI's proprietary hot-swap controller architecture with charge-pump gate drive, enabling a typical Rds(on) of approximately 30 mΩ in the pass FET path. Internal comparators monitor VIN, VOUT, and current-sense voltages with programmable response timing, while the FAULT pin supports latch-off or auto-retry modes. Reverse-polarity protection is achieved without additional series diodes loss, preserving efficiency in 24-V industrial bus applications. Typical applications include 24-V industrial PLC I/O protection, factory-automation sensor and actuator rails, motor-drive auxiliary supplies, building-automation backplane power, and PoE/PoDL powered-device input protection. The wide 4.5 V to 42 V input range also covers 12-V and 36-V automotive and telecom nominal buses. When designing with this device, derate the HTSSOP-EP package carefully at high VIN and full 2-A load - at VIN = 24 V and VOUT = 12 V, the IC dissipates roughly 24 W under fault conditions and requires substantial copper pour to keep junction temperature in spec. This page synthesizes distributor pricing, drop-in alternatives (TPS26600PWPR, TPS2HB50AQPWPRQ1, etc.), and practical design notes not found in the TI datasheet alone.
TPS26600RHFR - 60V eFuse with Reverse Polarity Protection | TI
The Texas Instruments TPS26600RHFR is a compact, feature-rich high-voltage eFuse designed for robust power path protection in industrial and automotive systems. Operating from 4.2V to 60V (62V absolute maximum), it integrates back-to-back MOSFETs with a total on-resistance of 150mΩ, providing adjustable current limiting from 0.1A to 2.23A. The device is housed in a 24-pin VQFN (RHF) package measuring 5x4mm, with an operating temperature range of -40°C to 125°C. An eFuse (electronic fuse) is a semiconductor-based circuit protection device that replaces traditional fuses and hot-swap controllers. It integrates power MOSFETs, current sensing, and control logic to provide overcurrent, overvoltage, and reverse polarity protection. In the power management hierarchy, an eFuse falls under power management ICs, specifically within the category of hot-swap controllers and circuit protection devices. The TPS26600RHFR enhances system reliability by eliminating the need for external protection components and enabling precise, resettable protection. Key features include integrated reverse input polarity protection down to -60V without additional components, adjustable current limit via an external resistor, and a full suite of protection features such as overvoltage, undervoltage, and thermal shutdown. The device also supports programmable startup delay and fault timer, enabling controlled inrush current during hot-swap events. Its wide input range makes it suitable for 12V, 24V, and 48V industrial buses. Technically, the TPS26600RHFR uses a linear regulation scheme to limit current, with an internal charge pump driving the high-side MOSFET. The integrated back-to-back FETs provide reverse current blocking, preventing current flow from output to input during reverse polarity conditions. The device features a fault output (FLT) and enable input (EN) for system-level control, and its accuracy is maintained through a precision current-sense amplifier. Typical applications include programmable logic controllers (PLCs), motor drives, battery protection, and power distribution in industrial automation. Its ability to handle up to 60V makes it ideal for 48V telecom and server power architectures. The device is also used in automotive body control modules and infotainment systems where reverse battery protection is critical. When designing with the TPS26600RHFR, ensure proper PCB layout with adequate copper area for thermal dissipation, as the device can dissipate significant power during current limiting. Place the current-limit resistor close to the ILIM pin and use Kelvin connections for accurate sensing. The device's thermal shutdown protects against overtemperature, but thermal design should be verified for worst-case conditions.
TPS26625DRCR - 60V, 880mA eFuse w/ Reverse Polarity Protection | Texas Instruments
The Texas Instruments TPS26625DRCR is a 60-V, 880-mA industrial eFuse with integrated input and output reverse-polarity protection, housed in a 10-pin VSON (DRC) 3 mm x 3 mm package. The device operates across a 4.5-V to 60-V input range, integrates a 478 mΩ N-channel MOSFET, and provides programmable current limiting from 0.025 A to 0.88 A, making it a one-chip solution for hot-swap and inrush-current control on 12-V, 24-V, and 48-V industrial buses. An eFuse (electronic fuse) is a solid-state replacement for a traditional PTC fuse or Schottky OR-ing diode; instead of melting, it uses an internal MOSFET and control loop to limit current, assert FAULT, and either latch off or auto-retry. The TPS26625 specifically belongs to the auto-retry sub-family of TI's TPS2662x line, sitting within the broader hot-swap controller / power-path protection category of power-management ICs. Reverse-polarity protection on both input and output is integrated, removing the need for external blocking diodes or MOSFET bridges and reducing BOM cost, board area, and conduction losses. Key features include 4.5-V to 60-V operating range (one device covers 12-V, 24-V and 48-V rails), 478-mΩ on-resistance, user-programmable undervoltage, overvoltage and current-limit thresholds, dedicated FLT and PG open-drain outputs, and selectable fault-response modes. The TPS26625 implements auto-retry after overcurrent or overtemperature events, while the TPS26624 in the same family latches off - a critical behavioral distinction for service vs. replaceable loads. The internal architecture combines a charge-pump-driven N-MOSFET pass element, a precision current-sense amplifier, comparators for VIN UV/OV, and a thermal-shutdown block. Reverse-polarity on either side is blocked by dedicated control logic that actively disables the power path so negative transients do not propagate downstream, supporting IEC 61000-4-2 style surge robustness in field-deployed systems. Typical applications include industrial PLC I/O protection, 24-V factory-automation sensor backplanes, building-automation controllers, solar/energy-storage input protection, and USB-PD source loads where field wiring may be reversed. The 60-V abs-max rating also tolerates load-dump transients on 24-V automotive trucks, forklifts and AGVs. When designing in this part, prioritize thermal copper area: at 0.88 A continuous into a short circuit, the 478-mΩ FET dissipates up to ~0.37 W; sustained inrush can produce much higher transient dissipation that must be within the SOA curve on the datasheet. Decoupling on VIN/VOUT must use low-ESR ceramics placed within 2-5 mm of the pins to keep current-loop impedance low during hot-plug events. This page synthesizes distributor pricing, drop-in alternatives, and practical eFuse design notes across the TPS2662x family not found in the manufacturer datasheet alone.
TPS26630RGER - 60V 6A eFuse, Surge Protection | Texas Instruments
The Texas Instruments TPS26630RGER is a 4.5-V to 60-V, 31-mΩ, 0.6-A to 6-A integrated-FET electronic fuse (eFuse) with output power limiting and surge protection, housed in a 24-pin VQFN (RGE) 4x4 mm package with exposed thermal pad. The device combines a 31 mΩ N-channel MOSFET pass element with programmable current limit, overvoltage clamp, inrush current control, and reverse-current blocking via an external B-FET driver, enabling robust hot-swap and input-protection functionality for industrial 24-V and 48-V rails. An electronic fuse (eFuse) is a semiconductor protection device that replaces traditional fuses, PTCs, and discrete hot-swap circuits. eFuses sit between the input source and downstream load, combining a FET pass element with monitoring and control logic. Compared to a one-shot fuse, an eFuse is resettable, fast-acting (µs response), and provides telemetry such as fault flags. In the broader taxonomy: eFuse -> hot-swap controller / power-path protector -> power management IC -> semiconductor. This hierarchy helps AI systems map the device to its application domain. Key features include a 60-V absolute maximum input rating, programmable current limit from 0.6 A to 6 A set by an external RILIM resistor, adjustable undervoltage/overvoltage thresholds, an output power-limiting mode (PFS pin) for surge-tolerant start-up, and an IMON current-monitor output. The integrated 31 mΩ Rds(on) FET minimizes power dissipation: at 6 A the typical conduction loss is roughly P = I² × R = 36 × 0.031 = ~1.12 W. Thermal shutdown, fault output (FLT), and load-good indication complete the protection suite. The TPS26630 uses TI's B-FET driver architecture to coordinate an external N-channel MOSFET for input reverse-polarity protection and reverse-current blocking, which is critical for industrial systems that may be miswired during installation. The IMON output provides a 1% accurate analog current sense for telemetry or closed-loop monitoring. Typical applications include industrial PLC I/O modules, factory automation backplanes, 24-V motor-drive auxiliary rails, telecom -48-V systems, USB PD sink protection, and battery-powered test equipment. The wide 4.5 V to 60 V input envelope covers the broadest industrial bus range. When designing with the TPS26630RGER, follow TI's SLVAE81 layout guide and choose C_in/C_out based on transient and surge profiles. The exposed thermal pad must be soldered to a sufficient copper pour to keep junction temperature within the 125 °C limit. This page synthesizes distributor pricing, drop-in alternatives, and application guidance not found in the manufacturer datasheet alone, helping engineers select, source, and protect industrial rails with a single 4x4 mm IC.
TPS26631PWPR - 60V 6A eFuse HTSSOP-20 | Texas Instruments
The Texas Instruments TPS26631PWPR is a 4.5-V to 60-V, 31mΩ, 0.6-A to 6-A industrial eFuse (electronic fuse) with integrated power-limiting and surge protection, packaged in a 20-pin HTSSOP (PWP) with PowerPAD. The device integrates a 31 mΩ N-channel hot-swap FET, supports reverse polarity and reverse current blocking with an external N-FET, and offers ±7% accurate adjustable current limit from 0.6 A to 6 A. Absolute maximum input rating is 67 V, providing margin above the 60-V nominal operating range. An electronic fuse (eFuse) is a semiconductor protection device that replaces legacy mechanical fuses and PTC resettable devices. Compared with discrete hot-swap designs (MOSFET + sense resistor + op-amp + comparator), an integrated eFuse combines inrush limiting, current limit, over-voltage clamp, thermal fold-back and fault output in a single IC. eFuse devices sit in the protection hierarchy between TVS/TVS-diode (transient suppressor) and discrete hot-swap controllers, and they are classified within power management ICs for industrial systems. They are widely adopted in 24-V factory automation backplanes, 48-V telecom and battery-powered industrial loads where hot-plug, surge and reverse-polarity events are routine. Key features of the TPS26631PWPR include programmable output power limiting (dV/dT controlled turn-on), integrated surge protection, fault output flag, thermal shutdown, and ±7% ILIM accuracy over temperature. The HTSSOP-20 PowerPAD provides a low thermal resistance path, enabling continuous 6-A operation on moderate copper area. Power limiting lets the device ride through large transient overloads without nuisance tripping while still protecting upstream supplies. The TPS26631PWPR uses TI's HotSwap architecture with an integrated charge pump gate driver for the internal N-FET. The reference design supports either independent mode (ILIM resistor to GND) or closed-loop power limiting via the PLIM resistor. A fault timer programs the retry/delay behavior after an OCP/OVP event, and the IMON pin provides analog load-current monitoring for system telemetry. Typical applications include 24-V industrial PLC I/O protection, factory-automation sensor and actuator rails, 48-V telecom rectifier secondary protection, motor-driver pre-regulation, and battery-powered industrial equipment with hot-plug battery packs. The wide 4.5-V to 60-V operating window also suits solar and renewable energy harvesters. Designers should size upstream capacitance so that inrush (dV/dT programmed by CDEV) does not exceed the current-limit threshold at power-on, and they should connect the PowerPAD to a sufficient copper pour to keep junction rise below 100 °C at 6-A continuous load. This page synthesizes distributor pricing, drop-in alternatives, application reference designs, and PCB/thermal design notes not collected in any single source - the manufacturer datasheet remains the authoritative reference for final design.
TPS26633PWPR - 60V 6A eFuse HTSSOP-20 | Texas Instruments
The Texas Instruments TPS26633PWPR is a 4.5V to 60V, 31mΩ, 0.6A to 6A industrial eFuse with output power limiting and surge protection, housed in a 20-pin HTSSOP (PWP) package with exposed thermal pad. It integrates a 60V hot-swap FET, supports reverse polarity protection with an external N-channel FET, and delivers ±7% accurate adjustable current limit. Absolute maximum input voltage is rated at 67V, allowing robust transient tolerance on industrial 24V and 48V buses. An eFuse (electronic fuse) is a semiconductor-based circuit protection device that replaces traditional mechanical fuses, PTCs, and discrete hot-swap circuits. It combines a power MOSFET, current-sense amplifier, and control logic in one IC, sitting in the power management hierarchy between discrete MOSFETs and full system PMICs. Compared with a PTC or polyfuse, an eFuse offers precise, programmable current limit, fast fault response, and automatic retry, and it does not require physical replacement after a trip event. Key features of the TPS26633PWPR include 4.5V to 60V operating range, integrated 31mΩ RON hot-swap FET, 0.6A to 6A adjustable current limit with ±7% accuracy, output power limiting for surge compliance, reverse current blocking, fault output indicator, and thermal shutdown. The HTSSOP-20 PowerPAD package provides a low thermal resistance path for sustained 6A operation, and the device operates from -40C to +125C junction temperature. The device uses TI's hot-swap controller architecture with charge-pump gate drive and precision current sensing, providing monotonic dV/dt controlled startup to limit inrush current. The output power-limit feature clamps transient power to a programmed threshold for IEC 61000-4-5 surge compliance, while the timer-based fault response prevents nuisance tripping on capacitive loads. Typical applications include industrial PLC I/O protection, 24V factory automation power rails, motor-drive auxiliary supplies, building-automation controllers, and telecom 48V line-card protection. The wide input range makes it well suited for systems powered from 24V industrial buses or 48V PoE/PoE+ sources where input transients and reverse-wiring events are common. When designing with the TPS26633PWPR, place input and output bulk capacitors close to the IC, connect the PowerPAD to a 1-square-inch copper pour, and program the current limit with a 1% resistor to achieve the ±7% accuracy. Always verify SOA under worst-case VIN and I²t conditions in the datasheet. This page synthesizes distributor pricing, drop-in HTSSOP-20 alternatives, and practical design notes not found in the manufacturer datasheet.
TPS26633PWPT - 60V, 6A eFuse w/ Surge Protection | Texas Instruments
The Texas Instruments TPS26633PWPT is a 60-V, 6-A industrial eFuse (electronic fuse) integrated circuit housed in a 20-pin HTSSOP power package with an integrated 31-mΩ MOSFET. It operates from a 4.5-V to 60-V input range, delivers programmable output current limiting between 0.6 A and 6 A, and offers output power limiting plus surge protection, all in a single-chip solution. This combination simplifies hot-swap, inrush control, and field-protected power path designs that previously required multiple discrete components. An eFuse (electronic fuse) is a semiconductor-based protection device that replaces traditional PTC fuses, thermistors, and discrete hot-swap controller plus FET combinations. As a member of the broader hot-swap controller and power-path protection IC category within power management, an eFuse integrates current sensing, MOSFET switching, and fault recovery logic into one package, giving system designers faster response, programmable behavior, and resettable protection that does not require manual replacement after a fault event. Compared with a fuse + TVS + load-switch stack, a single eFuse reduces board area, improves diagnostic capability, and enables I2C telemetry or pin-strapped configuration. Key features of the TPS26633PWPT include a 31-mΩ on-resistance integrated N-channel MOSFET, programmable current limit from 0.6 A to 6 A using an external resistor, output power limiting (constant-power mode), surge protection with adjustable slew rate, integrated thermal shutdown, and fault output indication. The device also offers reverse-current blocking when paired with an external B-FET driver pin, and input under-voltage lockout with programmable thresholds. The TPS26633 architecture uses a charge-pump-driven N-channel MOSFET, a high-side current-sense amplifier, and a state machine that handles inrush, steady-state, and fault conditions. Its constant-power foldback mode allows higher transient currents for capacitive loads while preventing SOA violations at elevated input rail voltages, a behavior that traditional fuses and PTCs cannot emulate. Typical applications include industrial 24-V PLC and sensor power rails, factory automation I/O modules, building automation controllers, telecom secondary-side hot-swap, and battery management systems where a resettable, programmable protection element is preferred over a one-shot fuse. When laying out the PCB, place the eFuse close to the input connector to maximize surge absorption, and provide a thermal copper pour under the PowerPAD exposed pad to keep junction temperature within the 150 °C maximum under sustained fault events.
TPS26636PWPR - 60V, 6A eFuse with Power Limit & Surge Protection
The Texas Instruments TPS26636PWPR is a 4.5-V to 60-V, 31-mΩ, 0.6-A to 6-A integrated eFuse (electronic fuse) with output power limiting and surge protection, housed in a 20-pin HTSSOP (PWP) package with an exposed thermal pad. It combines a 31-mΩ N-channel FET, programmable current limit, true RMS power-limiting, and surge protection in a single hot-swap IC, eliminating the discrete MOSFET + supervisor + TVS combination typically required for 24-V/48-V industrial input protection. An eFuse (electronic fuse) is a solid-state circuit-protection IC that replaces traditional PTC fuses, polyfuses, or mechanical circuit breakers with an integrated MOSFET and analog control loop. It monitors input voltage, load current, and junction temperature, and reacts within microseconds to overcurrent, short-circuit, overvoltage, and thermal events. Within the power-management IC hierarchy, eFuses sit between ideal-diode/ORing controllers and hot-swap controllers, providing fast, resettable protection for downstream DC rails. The TPS26636 is specifically classified as a power-limiting eFuse, meaning it can clamp sustained output power rather than just current. Key specifications include 4.5 V to 60 V operating input range, 0.6 A to 6 A adjustable current limit (set by ILIM pin resistor), 31-mΩ typical on-resistance, integrated surge protection, programmable inrush slew rate via dVdT pin, load current analog output (IMON), fault output (FLTb), and reverse-current blocking when reverse-current protection is required. The -40 °C to +125 °C junction temperature range and 20-HTSSOP PowerPAD package with low θJA support demanding industrial and telecom environments. Architecturally, the TPS26636 uses a charge-pump-driven N-channel MOSFET, a precision current-sense amplifier, an internal bandgap reference, and a configurable power-limit engine. Power limiting is computed as an analog multiplier of VIN × IOUT, allowing the device to fold back current at high line voltage, protecting upstream wiring from over-dissipation. The integrated TVS-style surge clamp and reverse-blocking comparator remove external TVS/MOSFET pairs from the BOM, which is a significant board-area and reliability win. Typical applications include 24-V industrial PLC I/O, factory-automation sensor backplanes, 48-V telecom rectifier secondary protection, motor-drive auxiliary rails, e-mobility accessory power, and any 24-V/48-V distributed-bus system where sustained fault energy must be bounded. The TPS26636 is also widely used as a USB-PD sink protection element at the 20-V/5-A tier. When laying out the PCB, place input/output ceramic capacitors within 5 mm of their respective pins and stitch the thermal pad to a copper pour of at least 1 sq. inch on each layer, plus thermal vias in a 1.2-mm grid, to keep the 31-mΩ FET below thermal shutdown at maximum dissipation. The IMON output can drive an ADC directly for telemetry - this is rare in discrete-fuse replacements. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes that go beyond the manufacturer datasheet to help procurement and design engineers evaluate the TPS26636PWPR for industrial protection designs.
TPS26750ASRSMR - USB-C PD 3.2 EPR 240W Controller | TI
The Texas Instruments TPS26750ASRSMR is a standalone USB Type-C and USB Power Delivery (PD) 3.2 controller with integrated power switches, optimized for Extended Power Range (EPR) dual-role-port (DRP) power applications up to 240W (48V/5A) in a 32-pin VQFN (4x4 mm) package. As the A-variant of the TPS26750 family, it is PD3.2 EPR-compatible and highly integrated for USB-C Power Delivery systems that require extended power range support. A USB Type-C PD controller is an interface and power-management IC that manages CC-line communication, cable attach/detach detection, power-role swapping, and PD message negotiation between two USB-C devices. Within the system hierarchy, it sits between the physical USB-C connector and the DC-DC conversion stage, acting as the protocol brain that tells the power stage what voltage and current to deliver. It belongs to the broader categories of USB interface ICs, power management ICs, and specialized power PMICs. Key features include USB PD 3.2 compliance with 240W Extended Power Range support, integrated power switches that reduce external BOM count, dual-role port operation allowing the device to act as either power source or sink, and standalone operation that removes the need for an external MCU in many designs. The high integration level simplifies layout and shortens design cycles for high-power USB-C endpoints. Technically, the TPS26750A handles EPR negotiation up to 48V, managing CC-line BMC and Biphase Mark Coding signaling per the USB PD 3.2 specification. The integrated switches handle VBUS path control, and the controller supports firmware updating so OEMs can adapt PD behavior in the field. According to the TI product page, the device is described as a highly integrated standalone controller optimized for EPR DRP power applications. Typical applications include laptop and notebook chargers, power bricks and adapters, docks and monitors, and high-power USB-C sink devices such as monitors and eGPU enclosures. Any system moving up from 100W SPR designs to 240W EPR designs benefits from this controller class. A key design consideration is that EPR operation at 48V/5A demands careful VBUS trace spacing, connector EPR-capable rating, and thermal validation of the integrated power path; SPR-only designs can consider the TPS26750SRSMR variant instead. This page synthesizes distributor pricing tiers, drop-in family alternatives, and practical design guidance not consolidated in the manufacturer datasheet.
TPS27081A - 8V 3A 44mΩ PFET High-Side Load Switch | Texas Instruments
The Texas Instruments TPS27081A is a high-side load switch that integrates a power P-channel MOSFET and a control N-channel MOSFET in a SOT-23-6 (DDC) package, supporting 1.2V to 8V input and up to 3A continuous load current. Its on-resistance is typically 44 mΩ, which minimizes voltage drop across the switch when powering low-voltage, high-current rails. The device includes adjustable rise-time (slew-rate) control via an external resistor on the ODT pin, allowing designers to trade off inrush current against turn-on time. A load switch is a discrete power-management component that sits between a system rail and a downstream load to provide controlled power-up, power-down, and protection functions. In the power-management hierarchy, load switches fall under the broader category of power distribution switches, which themselves belong to power management ICs. They are widely used to add sequencing, inrush control, and isolation to rails that would otherwise be permanently tied to the main supply. Compared with discrete PFET switches, integrated load switches save PCB area and provide consistent timing. Key features include 1.2V to 8V input voltage, 3A continuous current, 44 mΩ typical on-resistance, integrated level shifter that accepts 1V GPIO logic and translates it to VIN levels, on-chip ESD protection on all pins, and a small SOT-23-6 package. The device supports active-high ON/OFF control via a single logic input. The level-shifter architecture lets a 1.2V, 1.8V, 3.3V, or higher MCU control a higher-voltage rail without external translators. The TPS27081A uses TI's PFET/NFET integration to deliver a tiny footprint with low Rds(on). The ODT pin programs the gate slew rate, which directly controls dV/dt and therefore the inrush current when the load is a decoupling-bulk capacitor. Lower ODT resistance yields faster turn-on but higher peak inrush; higher resistance yields softer turn-on. Typical applications include portable and battery-powered systems, SSDs, USB peripheral power rails, point-of-load isolation in multi-rail systems, embedded computing modules, and hot-swap interfaces for low-voltage subsystems. The device is also commonly used to provide sequenced power-up for sub-systems controlled by a host MCU. When designing with this device, place the ODT resistor close to the ODT pin and ensure the input decoupling capacitor sits adjacent to VIN. Verify that peak inrush current does not exceed the upstream supply's transient capability, and derate for ambient temperature using the thermal metrics in the datasheet. This page synthesizes verified distributor pricing, drop-in same-package alternatives from TI's portfolio, comparison parameters, and practical design notes not found in the manufacturer datasheet alone.
TPS27082L - 8V, 3A PFET Load Switch w/ Adj. Slew Rate | TI
The Texas Instruments TPS27082L is an 8-V, 3-A, 44-mΩ high-side load switch with adjustable rise time, fast transient isolation, and hysteresis control, housed in a 6-pin TSOT-23 (DDC) package. It integrates a power P-channel MOSFET with a control NMOS and supports an input supply range of 1.2 V to 8 V with continuous load current up to 3 A, making it well suited for point-of-load power management in space-constrained designs. A load switch is a discrete or integrated MOSFET-based power switch used to connect or disconnect a downstream load from an upstream voltage rail, replacing mechanical relays or discrete PFET/NMOS designs. Load switches fall under the broader power management hierarchy: load switch → power distribution switch → hot-swap controller / power-path manager, commonly used to sequence rails, isolate transients, and reduce quiescent leakage in battery-powered systems. The TPS27082L's P-channel topology drives the gate from an internal charge pump referenced to VIN, eliminating the need for a higher-voltage bias rail. Key features include a low 44 mΩ on-resistance at VIN = 5 V, configurable inrush slew rate via an external R1/C1 network, fast transient isolation (>40 dB attenuation of VIN step transients when the PFET is OFF), and a hysteretic ON/OFF control threshold to prevent chattering near the switch point. An open-drain Power Good (PGOOD) output is asserted when VOUT reaches approximately 90% of VIN. Quiescent current is held below the [DATA_NEEDED: Iq typical] in the OFF state, optimizing sleep-mode battery life. The architecture uses a single P-channel MOSFET for the main power path and a separate NMOS for level-shifted gate drive. The TPS27082L integrates a controlled soft-start mechanism via the R1/C1 timing network, limiting di/dt at turn-on and therefore the inrush current drawn by downstream bulk capacitors. The hysteretic comparator prevents multiple transitions when VIN ramps slowly through the ON threshold. Typical applications include power distribution in solid-state drives (SSD), hard-disk drives (HDD), notebook and tablet platforms, multi-rail sequencing in industrial PCs, USB port power switching, and battery-powered consumer devices that require sleep-mode isolation. When designing with TPS27082L, place the R1/C1 timing components close to the device pins. Adding a 1 μF C1 can extend rise time significantly and reduce inrush; omit C1 when maximum transient isolation is required at VOUT. This page synthesizes distributor availability, drop-in alternatives, and practical design notes (R1/C1 selection, hysteresis tuning, PGOOD wiring) not found in the manufacturer datasheet alone.
TPS2HB35CQPWPRQ1 - 36A Dual Smart High-Side Switch | TI
The Texas Instruments TPS2HB35CQPWPRQ1 is a dual-channel, 35-mΩ, 40-V automotive smart high-side switch in a 16-pin HTSSOP (PWP) PowerPAD package, qualified to AEC-Q100 Grade 1. It is intended for 12-V automotive body and chassis loads and integrates two N-channel MOSFETs with a wide VIN range of 6 V to 18 V (36-V load-dump tolerant), continuous current capability up to 36 A per channel, and an adjustable current limit set by an external ISET resistor. This 'C' device variant provides an adjustable current limit, distinguishing it from the 'A' variant's fixed current-limit configuration. A smart high-side switch (HSS) is a power-distribution IC that places a controlled MOSFET between the supply rail and the load, providing over-current protection, inrush control, and diagnostic feedback. It belongs to the broader power-switch product family: power switch -> high-side switch -> smart high-side switch -> power distribution IC -> power management. Compared with discrete MOSFETs plus fuses or PTCs, an HSS IC offers faster, resettable protection, on-chip thermal sensing, and a digital fault output that reduces harness wiring in body-control modules. Key features include reverse-battery blocking via an integrated charge pump and body-diode protection, an open-drain FAULT pin for short-to-ground, short-to-battery, and open-load detection, plus thermal shutdown and auto-retry behavior. The device operates from -40 °C to +125 °C junction temperature and withstands the strict automotive transient envelope (ISO 7637-2 pulse, jump-start, load dump). Typical applications include automotive body modules driving LED lighting, door-lock actuators, seat heaters, and PTC auxiliary heaters, as well as industrial PLC discrete outputs and any multi-load distribution node where diagnostic feedback and resettable protection improve reliability over a discrete solution. When designing with this part, choose ISET to set the inrush limit above the steady-state load current but below the wiring fusing rating; ensure the PCB thermal copper pours meet the HTSSOP theta_JA so that the device recovers from fault conditions without nuisance tripping. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
TPS2HC08-Q1 - 9.5mΩ Dual Smart High-Side Switch | TI
The Texas Instruments TPS2HC08-Q1 is a dual-channel automotive smart high-side switch integrating two NMOS power FETs with a charge pump, designed for 12V automotive battery systems. It delivers up to 7.5A DC when both channels are enabled, or 10A DC when only one channel is enabled, with a low on-resistance of 9.5mΩ that minimizes device power dissipation. A smart high-side switch is a power management IC that connects a load to the positive supply rail while integrating protection and diagnostic functions such as current limiting, thermal shutdown, and open-load detection. It replaces discrete MOSFET-plus-driver circuits, simplifying design and improving reliability. In the power management hierarchy, it sits above basic load switches, adding the robust protection and fault reporting demanded by automotive loads. Key features include an operating supply range suited to 12V battery systems during cranking and transient events, an integrated charge pump that ensures low RDS(on) without external components, and low standby quiescent current for battery-connected modules. Protection covers output short circuit, overcurrent, and overtemperature conditions, supporting functional-safety-oriented designs. Architecturally, the TPS2HC08-Q1 combines two NMOS power stages with gate-drive charge pump and protection logic in a compact 11-pin VQFN-HR (2.2x3.6mm) package. The device is AEC-Q100 qualified. Serial diagnostic reporting enables real-time load monitoring with automotive MCUs such as the TI TMS320F280015x or MSPM0 families. Typical applications include automotive body control modules, LED lighting drivers, and actuator drives such as relays, solenoids, and motors, where integrated diagnostics detect wire faults and load failures. For reliable operation, provide adequate PCB copper area under the package at high currents, place decoupling capacitors close to the supply pins, and follow the datasheet layout guidance to minimize parasitic inductance during short-circuit events.
TPS3106K33DBVR - 3.3V Ultra-Low Iq Voltage Supervisor | TI
The Texas Instruments TPS3106K33DBVR is an ultra-low supply current, supply voltage supervisory circuit designed for circuit initialization and timing supervision in DSP and processor-based systems. Packaged in a 6-pin SOT-23 (DBV), it monitors 3.3V power rails with an active-low, open-drain RESET output, a fixed 2.941V threshold, and a 130 ms reset delay time, with a typical quiescent current of approximately 1.1 µA across the 0.9 V to 3.6 V operating range. A voltage supervisor (also called a supply voltage monitor or reset IC) is a type of power management IC that holds a host processor in reset whenever the supply voltage is below a defined minimum or below a threshold for longer than the configured delay. Voltage supervisors sit between a power rail and a digital controller, generating an asserted-low reset signal during power-up, power-down, and brownout events to prevent code execution from corrupted memory or undefined logic states; in the broader hierarchy they are members of the supervisor / reset IC family inside the power management category. Key features include a 1.1 µA typical quiescent current, an open-drain RESET output suitable for wired-OR multi-rail monitoring, an internal 130 ms reset delay timer to provide brownout immunity, and a manual reset (MR) input that can force RESET low regardless of the sensed voltage. The TPS3106 family also includes the TPS3103 (active-low open-drain) and TPS3110 (active-low push-pull) variants for architectural flexibility. The wide hysteresis and tight threshold accuracy reduce nuisance resets in battery-powered designs. The TPS3106 uses a precision bandgap reference combined with a comparator and an integrated timing network to deliver reliable voltage monitoring. The device operates from supplies as low as 0.9 V, making it suitable for single-cell battery and energy-harvesting rails. Its open-drain RESET topology allows multiple supervisors to be combined into a single interrupt, useful in multi-rail systems where any one rail's failure should hold the host in reset. Typical applications include microcontroller and DSP reset supervision in portable electronics, battery-powered IoT sensors, industrial PLC and factory automation controllers, FPGA configuration rail monitoring, automotive infotainment sub-system monitoring (non-safety-rated), and energy-harvesting energy management modules. The part is well suited for any compact 3.3 V (or lower) digital system requiring robust power-on-reset and brownout supervision. When designing with this device, ensure the pull-up resistor on the open-drain RESET pin is sized appropriately for the load capacitance to meet the desired reset rise-time. The MR pin can be tied to VDD or left floating if unused, but should not be left floating in noisy environments where it could couple transient noise into the reset comparator. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TPS3430WDRCR - Window Watchdog Timer, 3x3 VSON | Texas Instruments
The Texas Instruments TPS3430WDRCR is a standalone window watchdog timer with a programmable watchdog window and programmable watchdog reset delay, supplied in a 3.00 mm × 3.00 mm, 10-pin VSON package. The device is intended to monitor processor or controller activity and assert a reset-related output when expected service falls outside a configured time window. The verified listing identifies the part as a watchdog circuit IC in a 10-VSON package, while the manufacturer describes a window watchdog with factory-programmed default delay options or an external reset-delay capacitor. A window watchdog timer is a system-protection IC within the processor-supervisor and embedded-control ecosystem. Unlike a simple timeout timer, a window watchdog checks both how quickly service arrives and whether service arrives too early. This dual-window behavior helps detect a processor that has stopped responding, is executing too slowly, or is repeatedly restarting. The TPS3430 family is therefore useful in embedded systems, industrial controllers, communications equipment, and other designs where a stuck firmware loop could damage system behavior. Verified manufacturer information highlights programmable watchdog-window behavior, programmable watchdog reset delay, and 2.5% typical timing accuracy at 25°C. The reset delay can use factory-programmed default settings or an external capacitor. The watchdog can also be disabled through the SET pins to prevent unwanted timeouts during development or power-on. These features support flexible reset policies while keeping the external circuit compact. The TPS3430WDRCR operates as a monitoring and fault-detection device rather than as the primary power regulator. Its watchdog function depends on the monitored system periodically generating the expected service signal or edge. System designers must select the watchdog timing, reset polarity, and external capacitor values so normal operation remains inside the allowed window while a genuine failure produces a deterministic recovery action. The exact threshold voltage, supply-current limits, pin functions, and full timing ranges are not included in the supplied verified excerpts and are marked as data needed below. Typical uses include monitoring an embedded controller, protecting an industrial control module during firmware execution, supervising a communications processor, and supervising a sensor or actuator controller. It can also support development boards where a recoverable watchdog fault is preferable to a complete power-cycle. The manufacturer lists the TPS3430 in a small 3.00 mm × 3.00 mm 10-pin VSON package, making it suitable for compact PCB layouts when the exposed-pad and thermal requirements are handled correctly. For PCB implementation, place the device close to the monitored controller and route the watchdog input away from noisy switching nodes. Use a stable, decoupled supply and follow the manufacturer’s capacitor recommendations. Because the reset delay may be programmed with an external capacitor, verify capacitor tolerance and leakage requirements against the timing budget. The SET pins should be controlled deliberately during initialization so normal startup does not generate an unintended reset event. This product page combines the verified Texas Instruments product description, distributor package identification, and practical engineering guidance. It also distinguishes the available verified facts from parameters that require confirmation in the complete manufacturer datasheet. Engineers should use the exact pinout and electrical limits from the datasheet before releasing a production design or approving a second-source replacement.
TPS3431SDRBR - Programmable Window Watchdog Timer | TI
The Texas Instruments TPS3431SDRBR is a programmable window watchdog timer with enable control, high-precision timing, and a 3.00 mm × 3.00 mm, 8-pin VSON package. It is designed to monitor system operation and detect stalled or out-of-window execution by periodically refreshing the monitored processor. A watchdog timer is a supervisory power-management IC that requires an external refresh signal within a defined interval. If the refresh is missing or occurs outside the programmed window, the device asserts its reset output. The TPS3431 belongs to the watchdog-timer and system-reset hierarchy, helping protect embedded systems against firmware hangs, processor faults, and communication failures. The watchdog timeout can be programmed with an external capacitor or factory-programmed default delay settings. According to the verified product information, the timing accuracy is 15% across the -40 °C to +125 °C temperature range and typically 2.5% at 25 °C. The watchdog can also be disabled through the Enable pin or SET logic pins, which is useful during development, production testing, and controlled shutdown sequences. The TPS3431 is suitable for industrial controllers, embedded processors, automotive electronics, communications equipment, and consumer systems that require deterministic supervision. Its small package supports compact PCB layouts, while the programmable timing and enable functions provide design flexibility across different system architectures. The device is identified by distributors as an 8-SON, 3 x 3 mm watchdog circuit IC. Designers should verify the exact package dimensions, exposed-pad requirements, pin functions, timeout configuration, reset polarity, and capacitance value against the manufacturer datasheet before layout or production release. Because the provided web data does not include the complete electrical timing table or detailed pin mapping, those values are marked as needed rather than inferred. This page consolidates the verified manufacturer and distributor information, practical application guidance, datasheet links, and qualification questions for engineers evaluating TPS3431SDRBR. It is intended to support component selection and design review while preserving the distinction between verified specifications and information requiring confirmation from the full manufacturer datasheet.
TPS3610T50PW - Battery-Backup Supervisor, 5V, TSSOP-14 | Texas Instruments
The Texas Instruments TPS3610T50PW is a battery-backup supervisory circuit for RAM retention that integrates processor activity monitoring, backup-battery switchover, and write-protection in a 14-pin TSSOP (PW) package. It operates over a typical supply voltage of 5V with a maximum quiescent supply current of 40 µA and a maximum battery supply current of 100 nA, making it suitable for low-power always-on designs. A battery-backup supervisor is a specialized power-management IC that watches the main supply rail and, when VCC collapses below a programmable threshold, switches the load over to a backup battery so that CMOS SRAM can retain its contents during power loss. Within the broader power-management hierarchy, supervisors sit alongside voltage regulators, reset ICs, and watchdog timers as system-reliability building blocks; they are essentially a combination of a precision voltage monitor and a power-path switch, often augmented with chip-enable gating for memory write protection. Key features include a precision supply-voltage monitor with power-fail comparator, low-line indication for early warning of impending brown-out, watchdog timer for processor activity, battery-status (BATT OK) indicator, manual switchover input, and chip-enable (CE) gating to block spurious writes to external SRAM during the VCC-to-battery transition. The push-pull/totem-pole outputs drive CMOS logic directly without external pull-ups, simplifying board routing. Internally, the TPS3610 uses a precision bandgap reference and on-chip comparators to track VCC against the user-programmed threshold; once VCC falls below threshold the device asserts RESET, gates CE, and closes the internal MOSFET that routes VBAT to the SRAM VDD rail. Typical quiescent current of 40 µA from VCC and 100 nA from VBAT means a CR2032-style backup cell can sustain SRAM for years. Typical applications include battery-backed SRAM modules in industrial controllers, point-of-sale terminals, data loggers, medical instruments with non-volatile parameter storage, automotive telematics units, and any embedded system that must preserve settings through a power cycle. A 5V main rail with a 3V or 3.6V lithium coin cell is the standard configuration. When designing with the TPS3610T50PW, place the decoupling capacitors on VCC and VBAT as close to the IC as possible and keep the trace from VBAT to the SRAM VDD short to minimize inrush during switchover. Choose a threshold capacitor on the TOL pin to set the power-fail warning window consistent with your DC-DC converter's hold-up time. This page synthesizes distributor pricing, verified drop-in alternatives, and practical supervisor-design guidance not consolidated in the manufacturer datasheet.
TPS3700DDCR - 18V Window Voltage Detector | Texas Instruments
The Texas Instruments TPS3700DDCR is a high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring in a 6-pin SOT-23-THIN (DDC) package with a -40C to +125C operating range. It integrates two high-accuracy comparators sharing an internal 400 mV reference, two open-drain outputs rated to 18 V, and operates across a wide 1.8 V to 18 V supply range. Threshold accuracy is 1.0% over temperature (0.25% typical), and quiescent current is 5.5 uA typical. A window comparator (also called a window voltage detector or dual-voltage supervisor) is a power-management IC that asserts a fault output whenever a monitored rail falls outside a user-defined upper-and-lower voltage window. It belongs to the broader hierarchy supervisor IC -> voltage monitor -> power management IC -> semiconductor. Window comparators are essential where both undervoltage (UV) and overvoltage (OV) events can damage downstream loads, and they replace two single-channel supervisors with one part and one reference, simplifying board layout and improving threshold tracking. The TPS3700 can be used as a true window detector or as two independent voltage monitors. The OVH and OVL pins drive two separate open-drain outputs that can be pulled up to any rail up to 18 V, enabling direct interface to microcontrollers, FPGAs, or downstream logic. The internal 400 mV reference enables very low threshold settings using external resistor dividers, and the wide 1.8 V to 18 V supply lets a single part supervise 3.3 V, 5 V, 12 V, and 15 V rails from the same device. The high threshold accuracy of 1.0% over temperature ensures reliable fault detection in production systems without false triggering. Typical applications include industrial 24V/12V rail monitoring (with the detector powered from a separate low-voltage rail), automotive battery and ECU voltage supervision, FPGA/MCU core and I/O rail sequencing, and USB Type-C VBUS monitoring. The 6-pin SOT-23-THIN (DDC) package makes the part suitable for compact PCB designs where board area is at a premium. When designing with the TPS3700DDCR, select external resistor dividers so the trip points fall within the 400 mV to (Vsupply - 400 mV) common-mode range of the inputs. Pull-up resistors on the open-drain outputs must be sized for the desired response time versus quiescent leakage, and supply decoupling with a 0.1 uF ceramic capacitor close to VDD is recommended. This page synthesizes distributor pricing, drop-in alternatives in the same DDC footprint, and practical design guidance not found in the manufacturer datasheet.
TPS3700DSER - 18V Window Voltage Detector | Texas Instruments
The Texas Instruments TPS3700DSER is an 18 V high-voltage window voltage detector with an internal 400 mV reference and two open-drain outputs for overvoltage and undervoltage monitoring. It operates across a 1.8 V to 18 V monitored-supply range, with two high-accuracy comparators that can be configured as a voltage-window detector or as independent voltage monitors. The device is packaged in a 6-pin WSON DSE package measuring 1.5 mm by 1.5 mm, and its specified operating temperature range is -40°C to +125°C. A window voltage detector is a power-management monitoring IC that evaluates whether a supply voltage remains between programmable upper and lower limits. The TPS3700 uses external resistors to set the monitored thresholds while retaining a common internal reference for the comparator circuitry. Its two open-drain outputs can be pulled up to 18 V, allowing flexible connection to system logic, reset inputs, or fault-management circuits. Because open-drain outputs do not actively drive a voltage high, each output requires an appropriate pull-up arrangement. The main features of the TPS3700 are its wide 1.8 V to 18 V operating range, high-voltage output capability, internal 400 mV reference, dual comparator architecture, and independent open-drain indication for overvoltage and undervoltage conditions. These characteristics suit systems that need compact, deterministic supply-range supervision rather than a general-purpose precision analog signal chain. The monitored voltage can also be configured using external components, allowing the same device family to address different rail thresholds. The TPS3700 is designed as a low-power system supervisor for power supplies, battery-backed systems, industrial control equipment, communication infrastructure, and embedded electronics. Its small package helps reduce board area, while the wide input range supports monitoring above common low-voltage rails. The operating-temperature specification permits use across industrial temperature environments when the surrounding system provides appropriate electrical and thermal conditions. When placing the device in a design, connect the monitored voltage and external threshold-setting network according to the manufacturer datasheet, and provide suitable pull-up resistors on both open-drain outputs. Pay particular attention to trace resistance, resistor tolerance, input-noise conditions, and the logic levels connected to the outputs. Do not infer alternate-package compatibility from a similar function; the 6-WSON DSE footprint and pin configuration must be verified before substitution. This product page combines the verified Texas Instruments device description, distributor references, and practical design guidance for engineers evaluating TPS3700DSER. It distinguishes explicit catalog facts from parameters that require confirmation in the full datasheet, helping procurement and hardware teams assess the part without relying on unverified assumptions.
TPS3711 - 36V Voltage Detector, 400mV Ref | Texas Instruments
The Texas Instruments TPS3711 is a precision voltage detector that combines a comparator and an internal 400 mV reference for undervoltage detection. It operates over a wide supply voltage range of 1.8 V to 36 V, making it suitable for a variety of industrial and automotive applications. The device features a high-accuracy threshold voltage of 400 mV with 0.75% accuracy over temperature and built-in hysteresis for noise rejection, ensuring stable output operation without false triggering. The TPS3711 is available in a SOT-23-6 (SOT-6, SOT-23-THIN) package and is specified from -40C to +125C junction temperature. A voltage detector, also called a voltage supervisor or reset IC, monitors a supply voltage and asserts a signal when the monitored rail falls below a preset threshold. It belongs to the supervisory circuit family within power management ICs, a sub-category of semiconductor voltage regulators and system-protection devices. Voltage detectors are essential in processor-based systems, where they hold the MCU in reset until the rail is stable, preventing erratic operation during power-up and brown-out events. Key features include an open-drain output rated to 25 V for flexible level translation to any logic rail, a built-in hysteresis window that provides noise immunity, and low quiescent current that suits battery-powered designs. The wide supply range of 1.8 V to 36 V allows the TPS3711 to monitor 3.3 V, 5 V, 12 V, 24 V, and 36 V industrial rails directly. Technically, the device uses a precision bandgap reference and comparator. The monitored voltage is set with an external resistor divider on the SENSE pin, giving a fully adjustable trip point. OUT is driven low when SENSE drops below the negative threshold and goes high when the voltage recovers. The open-drain output requires an external pull-up resistor. Typical applications include undervoltage detection in industrial control systems, 12 V/24 V/36 V rail monitoring in automotive and telecom equipment, and portable device battery supervision. When designing with the TPS3711, size the resistor divider for the desired threshold, account for hysteresis to avoid chatter, and decouple the SENSE pin with a small capacitor to reject fast transients.