Product details


FET Internal Ron (Typ) (mOhm) 150 Vin (Min) (V) 4.2 Vin (Max) (V) 42 Vabsmax_cont (V) 55 Current limit (Min) (A) 0.1 Current limit (Max) (A) 2.2 Overcurrent response Current limiting, Circuit breaker Fault response Auto Retry, Latch Off open-in-new Find other eFuses & hot swap controllers

Package | Pins | Size

HTSSOP (PWP) 16 32 mm² 5 x 6.4 VQFN (RHF) 24 20 mm² 5 x 4 open-in-new Find other eFuses & hot swap controllers


  • 4.2-V to 42-V operating voltage, 45-V absolute maximum

  • Integrated reverse input polarity protection down to –42 V
    • Zero additional components required
  • Integrated back to back MOSFETs with 150-mΩ total RON
  • 0.1-A to 2.23-A adjustable current limit (±5% accuracy at 1 A)
  • Load protection during surge (IEC 61000-4-5) with suitable TVS
  • IMON current indicator output (±8.5% accuracy)
  • Low quiescent current, 300-µA in operating, 20-µA in shutdown
  • Adjustable UVLO, OVP cut off, output slew rate control
  • Reverse current blocking
  • Available in easy-to-use 16-pin HTSSOP and 24-pin VQFN packages
  • Selectable current-limiting fault response options (auto-retry, latch off, circuit breaker modes)

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The TPS26400 devices are compact, feature rich high voltage eFuses with a full suite of protection features. The wide supply input range of 4.2 to 42 V allows control of many popular DC bus voltages. The device can withstand and protect the loads from positive and negative supply voltages up to ±42 V. Integrated back to back FETs provide reverse current blocking feature making the device suitable for systems with output voltage holdup requirements during power fail and brownout conditions. Load, source and device protection are provided with many adjustable features including overcurrent, output slew rate and overvoltage, undervoltage thresholds. The internal robust protection control blocks along with the high voltage rating of the TPS26400 helps to simplify the system designs for Surge protection.

A shutdown pin provides external control for enabling and disabling the internal FETs as well as placing the device in a low current shutdown mode. For system status monitoring and downstream load control, the device provides fault and precise current monitor output. The MODE pin allows flexibility to configure the device between the three current-limiting fault responses (circuit breaker, latch off, and Auto-retry modes).

The device is available in a 5-mm × 4.4-mm 16-pin HTSSOP as well as 5-mm x 4-mm 24-pin VQFN package and are specified over a –40°C to +125°C temperature range

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Same functionality and pinout but is not an equivalent to the compared device:
TPS2660 ACTIVE 4.2-V to 60-V, 150mΩ, 0.1-2.23A eFuse with integrated input reverse polarity protection 60-V eFuse designed for surge immunity and SELV applications

Technical documentation

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Type Title Date
* Data sheet TPS2640 42-V, 2-A eFuse with Integrated Reverse Input Polarity Protection datasheet (Rev. A) Jun. 01, 2021
User guide TPS2640EVM: Evaluation Module for TPS2640 Oct. 08, 2020
Certificate TPS2640EVM EU Declaration of Conformity (DoC) Jul. 22, 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The TPS2640EVM allows reference circuit evaluation of TI's TPS2640 devices. The TPS2640 is compact 4.2-V to 42-V, 2.23-A industrial eFuses with integrated back-to-back FETs, programmable undervoltage, overvoltage, reverse-polarity, overcurrent, inrush current protection, and output current (...)

  • 4.2-V to 42-V input operating range
  • 0.2-A to 2.23-A programmable current limit
  • Reverse polarity protection up to -42 V
  • Selectable overload fault response (auto-retry, latch and circuit breaker)
  • On oard reset switch and fault indicator

Design tools & simulation

SLVMDF4.ZIP (305 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 16 View options
VQFN (RHF) 24 View options

Ordering & quality

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