Texas Instruments TPS25210ARPWR

Overview

TPS25210ARPWR from Texas Instruments is a 4-A, 31-mΩ true reverse current blocking eFuse with integrated back-to-back FETs, input reverse polarity protection, and pin-selectable overvoltage clamp (3.8 V or 5.7 V). It operates from 2.7 V to 5.7 V input, withstands –15 V reverse input, and delivers fast short-circuit response (500 ns typ.) for USB PD port and enterprise storage power rail protection.

For engineers reviewing the TPS25210ARPWR datasheet, TPS25210ARPWR pinout, TPS25210ARPWR application, or TPS25210ARPWR equivalent, key selection considerations include adjustable current limit (0.5–4.44 A), ±6% load current monitoring accuracy, dV/dt-controlled slew rate, and UL 2367/IEC 62368-1 safety certification - all in a 2 mm × 2 mm HotRod QFN package.

Technical Context

The TPS25210ARPWR implements dual-FET power path control with true reverse current blocking via fast-turnoff BFET triggered at –29.1 mV (VIN – VOUT), enabling hold-up-capable systems during input failure. Its overvoltage clamp uses internal comparators with 5-μs response and selectable thresholds, while overcurrent protection combines active current limiting (400-μs response) and scalable fast-trip (2×ILIM) or fixed 22-A threshold modes.

Functional modes are managed through analog-configurable pins: EN/UVLO sets undervoltage lockout (1.2 V typ.), PGTH defines Power Good assertion threshold (1.2 V typ.), and ITIMER/CdVdt capacitors configure transient blanking interval and output slew rate - all without requiring digital interface or firmware.

Key Specifications

Pinout & Package

TPS25210ARPWR is housed in a 10-pin HotRod QFN package (2 mm × 2 mm, 0.45-mm pitch) with exposed thermal pad for enhanced power dissipation (RθJA = 41.7°C/W on custom 4-layer PCB).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar eFuse protection applications.

Compared with TPS25210LARPWR and TPS259472ARPWR, the TPS25210ARPWR uniquely balances compact 2-mm QFN footprint, –15 V reverse polarity tolerance, auto-retry behavior, and analog configurability - making it optimal for space-constrained, hot-pluggable USB and storage interfaces where simplicity and robustness are prioritized over telemetry or ultra-low RON.

Availability

TPS25210ARPWR is available at Aetrix Electronics and suitable for USB PD port protection, enterprise storage power rails, and server motherboard auxiliary supplies requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for TPS25210ARPWR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability protection solutions.

The TPS2521x family was designed specifically for robust, low-footprint power path protection in data center, storage, and USB-powered systems - emphasizing true reverse current blocking, analog configurability, and safety certification out-of-the-box.

FAQ

What is the maximum reverse input voltage the TPS25210ARPWR can withstand?

The TPS25210ARPWR withstands –15 V applied to the IN pin while VOUT = 0 V, per Absolute Maximum Ratings. This reverse polarity protection is enabled by its integrated back-to-back FET architecture and fast-turnoff comparator (response <1 µs), making it suitable for hot-swap and adapter applications where input reversal may occur. The device remains fully off under this condition with only 4.8 µA reverse leakage.

How is overvoltage clamp threshold selected on the TPS25210ARPWR?

The TPS25210ARPWR uses the OVCSEL pin to select between two overvoltage clamp thresholds: shorting OVCSEL to GND configures 3.8 V clamping (typ. 3.88 V), while leaving OVCSEL open selects 5.7 V clamping (typ. 5.74 V). No external components are required - the internal comparator responds in 5 µs (typ.) to clamp VOUT and protect downstream 3.3-V or 5-V circuitry.

Can the TPS25210ARPWR provide accurate load current monitoring?

Yes, the TPS25210ARPWR provides ±6% accuracy for analog load current monitoring via the ILM pin when IOUT ≥ 1 A. The ILM pin outputs a proportional current (182 µA/A typ.) that can be converted to voltage with a precision shunt resistor. This enables real-time telemetry without adding external sense amplifiers - a key advantage over basic eFuses lacking integrated monitoring.

What is the purpose of the dVdt pin on the TPS25210ARPWR?

The dVdt pin on the TPS25210ARPWR controls output voltage slew rate during power-up. Connecting a capacitor from dVdt to GND slows the rising edge of VOUT - for example, 3300 pF yields 0.5 V/ms - to limit inrush current into large output capacitances. Leaving dVdt open enables fastest turn-on (12.14 V/ms), giving designers full control over inrush without external timers or RC networks.

Does the TPS25210ARPWR support automatic recovery after overcurrent faults?

Yes, the TPS25210ARPWR implements auto-retry behavior after overcurrent faults: following a current-limit or fast-trip event, it disables the power path for 110 ms (typ.) and then attempts automatic re-enabling. This behavior is inherent to the "A" variant (TPS25210A) and distinguishes it from the latch-off "L" variant (TPS25210L), making it ideal for applications like USB PD ports where transient overloads should not cause permanent shutdown.