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Texas Instruments TPS274160 Smart High-Side Switch

Texas Instruments TPS274160 Smart High-Side Switch is a smart high-side switch with four integrated 160mΩ NMOS power FETs and a charge pump to drive the gates. The device offers robust protection and diagnostic features to drive various loads (inductive, capacitive, and resistive) such as low wattage bulbs, LEDs, relays, solenoids, heaters, and sub-modules. The part enables flexible, multi-channel output configurations through paralleling channels and is in a very small WQFN package to enable usage in space-constrained applications.

The Texas Instruments TPS274160 is protected against short circuit events and over-temperature events, safely shutting off the output during fault events. The device also implements an external adjustable current limiting feature. This feature improves the reliability of the system by reducing inrush current when driving large capacitive loads. It also minimizes overload current, thereby eliminating system supply brownout condition. The device also integrates diagnostic features like output current monitoring (version B) and open load detection to enable improved intelligence in modules and to enable predictive maintenance functionality.

Features

  • Quad-channel 160mΩ smart high-side switch
  • 5V to 36V wide DC operating voltage range
    • 50V absolute maximum voltage
  • Accurate adjustable current limiting (250mA to 4A)
  • Intelligent diagnostic features
    • Open-drain fault output (TPS274160A)
    • Analog current sense (TPS274160B)
    • Open-load or short to supply detection in the off-state
  • Robust protection features
    • Short-circuit protection
    • Inductive load flyback clamp
    • Undervoltage lockout (UVLO) protection
    • Loss of GND protection
  • Excellent ESD protection on VS and OUT pins
    • ±8/±15kV IEC 61000-4-2 ESD contact/air discharge
  • Available in small and 28-pin leadless QFN packages
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design

Applications

  • Digital output modules
  • Standalone remote I/O
  • Motor drives
  • Solenoid or valve drive

Functional Block Diagram

Block Diagram - Texas Instruments TPS274160 Smart High-Side Switch

Related Development Tool

TPS274160EVM Switch Evaluation Module (EVM)

Texas Instruments TPS274160EVM Switch Evaluation Module (EVM)

Designed to evaluate the TPS274160A and TPS274160B devices in TI's high-side switch portfolio.

Learn Moreabout Texas Instruments TPS274160EVM Switch Evaluation Module (EVM) View Productsrelated to Texas Instruments TPS274160EVM Switch Evaluation Module (EVM)
Published: 2021-01-08 | Updated: 2022-04-24