Product details


FET External Vin (Min) (V) 9 Vin (Max) (V) 80 Vabsmax_cont (V) 100 Current limit (Min) (A) 0.01 Current limit (Max) (A) 500 Overcurrent response Current limiting, Circuit breaker Fault response Latch Off UL recognition open-in-new Find other eFuses & hot swap controllers

Package | Pins | Size

TSSOP (PW) 14 32 mm² 5 x 6.4 open-in-new Find other eFuses & hot swap controllers


  • 9-V to 80-V Operation
  • High-Side Drive for External N-FET
  • Programmable FET Power Limit
  • Programmable Load Current Limit
  • Programmable Fault Timer
  • Load Current Monitor Output
  • Power Good and Fault Outputs
  • Enable/UV, OV Inputs
  • Latch or Auto Restart After Fault
  • EVM Available SLUU425
  • Calculation Tool Available SLVC033
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The TPS2492 and TPS2493 are easy-to-use, positive high voltage, 14-pin Hotswap Controllers that safely drive an external N-channel FET to control load current. The programmable power foldback protection ensures that the external FET operates inside its safe operating area (SOA) during overload conditions by controlling of power dissipation. The programmable current limit and fault timer ensure the supply, external FET, and load are not harmed by overcurrent. Features include inrush current limiting, controlled load turn-on, interfacing to down-stream DC-to-DC converters, and power feed protection.

The analog current monitor output provides a signal ready for sampling with an external A/D converter.

Additional features include programmable overvoltage and undervoltage shutdown, power-good for coordinating loads with inrush, and a fault indicator to indicate an over-current shutdown.

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LM5069 ACTIVE 9-V to 80-V hot swap controller with power limiting This product is an overall improved device to use in new designs.
TPS1663 ACTIVE 4.5-V to 60-V, 31mΩ, 0.6-6A eFuse with output power limiting Need a smaller solution? This device offers an integrated FET to reduce the solution size for 24V/6A applications.
TPS2660 ACTIVE 4.2-V to 60-V, 150mΩ, 0.1-2.23A eFuse with integrated input reverse polarity protection Need a smaller solution? This device offers integrated back-to-back FETs to reduce the solution size for 24V/2A applications.
TPS2663 ACTIVE 4.5-V to 60-V, 31mΩ, 0.6-6A eFuse with output power limiting and surge protection Need a smaller solution? This device offers integrated back-to-back FETs to reduce the solution size for 24V/6A applications.

Technical documentation

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Type Title Date
* Data sheet Positive High-Voltage Power-Limiting Hotswap Controller datasheet (Rev. C) Jan. 15, 2013
E-book 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Surge Stopping and Reverse Voltage Protection with the LM5069 Apr. 11, 2013
User guide Using the TPS2492/3 Hot Swap Controller (Rev. A) Mar. 19, 2011

Design & development

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

Hardware development


The TPS2492EVM-003 is a fully assembled and tested circuit for evaluating the TPS2492 positive high-voltage power-limiting hot swap controller with analog current monitor output. The TPS2492EVM-003 accepts a 1VDC to 48VDC input and delivers a 48VDC, 1-A maximum output with the latch off mode. The (...)

  • +9V to +80V Operation
  • Programmable Power Limit for FET Protection
  • Programmable Current Limit for Load Protection
  • Programmable Fault Timer
  • Load Current Indicator Output
  • High-side Drive for External NFET
  • Power Good Output - Open-Drain
  • Enable, UV, OV Inputs
  • Latch Off After Fault

Design tools & simulation

SLUM134B.ZIP (45 KB) - PSpice Model
SLUM210A.TSC (215 KB) - TINA-TI Reference Design
SLUM211A.ZIP (42 KB) - TINA-TI Spice 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
  • (...)
SLVC033J.ZIP (600 KB)

Reference designs

Digitally controlled power multiplexing and monitoring system
PMP5927 — PMP5927 is an I2C controlled 1:7 Power Mux and Monitoring System for DC distribution systems from 9 to 80 V. It is well suited for distributing power to TMAs (Tower Mounted Antennas), LED Arrays, and other DC systems needing sequencing, circuit protection, and monitoring via an I2C interface. With (...)

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 14 View options

Ordering & quality

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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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