Product details


FET Internal Ron (Typ) (mOhm) 3 Vin (Min) (V) 2.5 Vin (Max) (V) 18 Vabsmax_cont (V) 30 Current limit (Min) (A) 0.01 Current limit (Max) (A) 12 Overcurrent response Current Limiting Current limit type Adjustable Fault response Latch Off UL recognition open-in-new Find other eFuses & hot swap controllers

Package | Pins | Size

VQFN (RUV) 36 25 mm² 3.5 x 7 open-in-new Find other eFuses & hot swap controllers


  • 2.5 V to 18 V Bus Operation
  • Continuous Current up to 12 A
  • Integrated MOSFET with RDS(on) of 3 mΩ (Typical)
  • Programmable Current Limit
  • Programmable FET SOA Protection
  • High ILimit Accuracy from 10 mA to 12 A
  • Programmable Fault Timer
  • Fast Breaker for Short-Circuit Protection
  • Programmable VOUT Slew Rate, UV and OV
  • Power-Good and Fault Outputs
  • Analog Load Current Monitor
  • Thermal Shutdown
  • UL 2367 Recognized – File No. E339631

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The TPS2475x provide highly integrated load protection for 2.5 V to 18 V applications. The devices integrate a hot swap controller and a power MOSFET in a single package for small form factor applications. These devices protect source, load and internal MOSFET from potentially damaging events. During startup, load current and MOSFET power dissipation are limited to user-selected values. After startup, currents above the user-selected limit will be allowed to flow until programmed timeout – except in extreme overload events when load is immediately disconnected from source.

Programmable FET SOA protection ensures the internal MOSFET operates within its safe operating area (SOA) at all times and the load starts up at a defined ramp rate. This enhances the internal MOSFET performance while improving system reliability. Power good, Fault, and current monitor outputs are provided for system status monitoring and downstream load control.

The devices are available in a 36-pin, 7-mm × 3.5-mm, QFN (RUV) package and fully specified over the –40°C to +125°C operating junction temperature.

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Similar but not functionally equivalent to the compared device:
TPS25982 ACTIVE 2.7-V to 24-V, 2.7-mΩ, 15-A eFuse with hot-swap protection, ±1.5% current monitor & adj. fault mgmt. This product has full integrated low Ron, high current eFuse with accurate load current monitor.

Technical documentation

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Type Title Date
* Datasheet TPS2475x 12-A eFuse Circuit Protector with Current Monitor datasheet (Rev. C) Dec. 06, 2018
More literature TPS2475x UL Certificate of Compliance UL 2367 Apr. 10, 2020
Application note eFuse: Safety Certification and why it Matters Mar. 18, 2020
E-book 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
Application note Basics of eFuses (Rev. A) Apr. 05, 2018
Application note Power Multiplexing Using Load Switches and eFuses (Rev. A) Jun. 20, 2017
Technical article Adapters gone wild! Jan. 21, 2014
User guide TPS2475X EVM User Guide Sep. 09, 2013

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

TPS24750EVM-546 features a highly sophisticated hot swap controller with integrated MOSFET with built in SOA protection. The EVM provides the user with convenient test points, connectors, and various indicators for full evaluation of the device. TPS24751 will automatically retry while TPS24750 will (...)

  • 10A integrated MOSFET hot swap controllers with either automatic retry (TPS24751) or latched fault (TPS24750)  versions.
  • 35A input/output screw type terminals.
  • Onboard fault and power good LED’s.
  • Linear output ramp (gate dV/dt control) option using jumper.
  • On board test point access for all device level (...)

Design tools & simulation

SLVM944A.ZIP (37 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
  • (...)
SLVC545A.ZIP (955 KB)

Reference designs

Universal Digital Interface to Absolute Position Encoders Reference Design
TIDA-00179 The TIDA-00179 reference design is an EMC compliant universal digital interface to connect to absolute position encoders, like EnDat 2.2, BiSS®, SSI or HIPERFACE DSL®.  The design supports a wide input voltage range from 15-60V (24V nom). A connector with 3.3V logic I/O signals allows (...)
document-generic Schematic document-generic User guide
Two-Wire Interface to a HIPERFACE DSL® Encoder Reference Design
TIDA-00177 The TIDA-00177 reference design is an EMC compliant industrial interface to a two-wire HIPERFACE DSL® encoder. Applications include industrial servo drives.

The design features a 3.3-V supply RS485 transceiver and line termination and coupling for encoder power over RS485 as per HIPERFACE DSL (...)

document-generic Schematic document-generic User guide
Power Supply with Programmable Output Voltage and Protection for Position Encoder Interfaces
TIDA-00180 This TI Design implements a universal power supply with programmable output voltage and innovative smart e-Fuse technology for use in a multi-standard position encoder interface module on an industrial drive. The eFuse provides inrush-current and over-current protection as well as user programmable (...)
document-generic Schematic document-generic User guide
Interface to a 5-V BiSS position encoder reference design
TIDA-00175 This TI Design implements a hardware interface solution based on the BiSS standard for position or rotary encoders. It supports both BiSS Point-to-Point and BiSS Bus configurations.The building blocks include the power supply for a 5V BiSS encoder – with innovative smart e-Fuse technology (...)
document-generic Schematic document-generic User guide
Reference Design for an Interface to a Position Encoder with EnDat 2.2
TIDA-00172 This TI Design implements a hardware interface solution based on the HEIDENHAIN EnDat 2.2 standard for position or rotary encoders. The building blocks include the power supply for the encoder – with innovative smart e-Fuse technology - and robust half-duplex RS485 transceivers, including line (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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VQFN (RUV) 36 View options

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