Home Power management Power switches eFuses & hot swap controllers

TPS2492

ACTIVE

9-V to 80-V hot swap controller with power limiting, latch off and analog current monitor

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 Circuit breaker, Power limiting, current limiting Fault response Latch-off Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection
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 Circuit breaker, Power limiting, current limiting Fault response Latch-off Soft start Adjustable Overvoltage response Cut-off Features Current monitoring, Fault output, Power good signal Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Overvoltage protection, Power good signal, Short circuit protection
TSSOP (PW) 14 32 mm² 5 x 6.4
  • 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
  • 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

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.

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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Technical documentation

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

Design & development

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

Evaluation board

TPS2492EVM-003 — TPS2492 Hot Swap Controller Evaluation Module for Positive 48V Rails

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 (...)

Not available on TI.com
Simulation model

TPS2492 PSPICE Transient Model (Rev. B)

SLUM134B.ZIP (45 KB) - PSpice Model
Simulation model

TPS2492 TINA-TI Transient Reference Design (Rev. A)

SLUM210A.TSC (215 KB) - TINA-TI Reference Design
Simulation model

TPS2492 TINA-TI Transient Spice Model (Rev. A)

SLUM211A.ZIP (42 KB) - TINA-TI Spice Model
Calculation tool

TPS2480-81-90-91-92-93_CALC TPS249x8x Design Calculator Rev B

Simply enter the input voltage, the output current, the output capacitance, and other application specifications into this spreadsheet calculator and the values of the required external components for TPS2480, TPS2481, TPS2490, TPS2491, TPS2492 or TPS2493, such as the sense resistance, the Timer (...)
Supported products & hardware

Supported products & hardware

Products
eFuses & hot swap controllers
TPS2480 9-V to 80-V hot swap controller with I2C current monitor and latch off TPS2481 9-V to 80-V hot swap controller with I2C current monitor and Auto Retry TPS2482 9-V to 80-V hot swap controller with digital powermonitoring and latch off TPS2483 9-V to 80-V hot swap controller with digital powermonitoring and Auto Retry TPS2490 9-V to 80-V hot swap controller with power limiting and latch off TPS2491 9-V to 80-V hot swap controller with power limiting and Auto Retry TPS2492 9-V to 80-V hot swap controller with power limiting, latch off and analog current monitor TPS2493 9-V to 80-V hot swap controller with power limiting, Auto Retry and analog current monitor
Hardware development
Evaluation board
TPS2483EVM-157 TPS2483 Evaluation Module
Software
Calculation tool
TPS2480-81-90-91-92-93_CALC Free tool: TPS2480/81/90/91/92/93 Design-in Calculator
Calculation tool

TVS-RECOMMENDATION-CALC TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
Supported products & hardware

Supported products & hardware

This design resource supports most products in these categories.

Check the product details page to verify support.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Package Pins Download
TSSOP (PW) 14 View options

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