Texas Instruments TPS259260DRCT

Overview

TPS259260DRCT from Texas Instruments is a 12-V-rated eFuse protection switch with integrated 30-mΩ pass MOSFET, fixed 15-V over-voltage clamp, adjustable 2–5-A current limit (±15% accuracy), programmable dV/dT ramp control, and latched thermal shutdown. It serves as a robust hot-swap controller in auxiliary 12-V power rails for PCIe cards and server subsystems.

For engineers reviewing the TPS259260DRCT datasheet, TPS259260DRCT pinout, TPS259260DRCT application, or TPS259260DRCT equivalent, key selection criteria include its 15-V OVP clamp level, latched fault response, 10-pin VSON (3 mm × 3 mm) package, and compatibility with 4.5–13.8-V input systems requiring UL 2367 recognition and single-point-failure safety compliance.

Technical Context

The TPS259260DRCT implements a precision current-limit amplifier with fast-trip comparator (IFASTRIP = 1.6 × IOL) for sub-µs short-circuit response, combined with internal over-voltage clamping that activates above 15 V without external components. Its EN/UVLO pin provides dual-function control: enable/disable switching and UVLO threshold programming via resistor divider.

Thermal management uses a dedicated junction sensor with 150°C shutdown threshold and 10°C hysteresis; fault recovery requires manual reset via EN/UVLO toggle due to latched mode. Output slew rate is set by an external capacitor on the dV/dT pin, with typical ramp times ranging from 0.28 ms (no cap) to 13 ms (1 nF) for 12-V output.

Key Specifications

Pinout & Package

TPS259260DRCT is housed in a 10-pin VSON (DRC) package with 3.00 mm × 3.00 mm body size and exposed thermal pad. Pin 1 is marked by a dot; pins 4–5 and 7–8 are internally connected OUT terminals for high-current routing and thermal relief.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS259260DRCT, TPS259261DRCT offers identical protection features but replaces latched shutdown with auto-retry, while TPS25942ARVCR delivers higher performance and integration at the cost of larger footprint and higher complexity-making TPS259260DRCT optimal for cost-sensitive, space-constrained 12-V auxiliary rails requiring deterministic fault handling.

Availability

TPS259260DRCT is available at Aetrix Electronics and suitable for PCIe add-in cards, server auxiliary power rails, and adapter-powered embedded systems requiring stable component supply, long-term lifecycle support, and UL-recognized safety compliance.

Supply support for TPS259260DRCT 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, safety, and system-level integration.

The TPS2592xx family is designed specifically for hot-swap and power-path protection in enterprise, industrial, and computing infrastructure-delivering integrated eFuse functionality in minimal footprint with safety certifications pre-validated.

FAQ

What is the over-voltage clamp voltage of the TPS259260DRCT?

The TPS259260DRCT features a fixed 15-V over-voltage clamp (VOVC), specified as 13.8 V (min) to 16.5 V (max) across temperature and load conditions. This clamp activates automatically when VIN exceeds ~16.5 V, limiting the OUT voltage to protect downstream 12-V circuitry without requiring external components. The TPS259260DRCT is rated for 12-V systems and differs from the 5-V TPS25925x series, which clamps at 6.1 V.

How do I set the current limit for the TPS259260DRCT?

The TPS259260DRCT current limit is set by connecting a resistor (RILIM) between the ILIM pin and GND. Using the formula RILIM = 0.7 / (IOL – 3 µA), a 100-kΩ resistor yields ~3.75 A (typical). Valid RILIM range is 10–162 kΩ, supporting 2–5-A limits with ±15% accuracy. The TPS259260DRCT datasheet Table 7.5 lists exact values for common setpoints, and RILIM = OPEN or 0 Ω triggers single-point-failure test modes (0.73 A or 0.84 A).

Does the TPS259260DRCT support programmable output slew rate?

Yes, the TPS259260DRCT supports programmable output slew rate via the dV/dT pin. Connecting a capacitor (1–1000 nF) from dV/dT to GND controls ramp time: with no capacitor, TdVdT ≈ 0.7 ms (to 11.7 V); with 1 nF, it extends to ~12 ms. The internal 220-nA current source and 70-pF capacitance govern timing per TI's Equation 2. This feature ensures controlled inrush in hot-swap applications and is unique to the TPS259260DRCT among its pin-compatible variants.

What is the fault response behavior of the TPS259260DRCT?

The TPS259260DRCT uses a latched fault response: upon over-current, over-voltage, or thermal shutdown, the internal MOSFET turns off and remains off until the EN/UVLO pin is toggled (pulled low then high) or power is cycled. This differs from the auto-retry TPS259261DRCT. Latching ensures persistent fault isolation in mission-critical 12-V rails, such as server AUX supplies, where uncontrolled re-engagement could damage downstream loads.

Is the TPS259260DRCT UL-recognized?

Yes, the TPS259260DRCT is UL 2367 recognized under File E339631, confirming compliance for use in end equipment requiring safety agency approval. Recognition applies to the device itself-not the full circuit-and covers over-current, over-voltage, and thermal protection functions. UL listing supports faster system-level certification for enterprise and industrial products, and the TPS259260DRCT meets UL60950 single-point-failure requirements when RILIM ≤130 kΩ.