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TPS274160

ACTIVE

36-V, 160-mΩ, 1.35-A, 4-ch, Industrial high-side switch with adjustable current limit

Product details

Number of channels 4 Operating voltage (max) (V) 36 Operating voltage (min) (V) 5 Ron (typ) (mΩ) 160 Imax (A) 1.35 Current limit (min) (A) 0.25 Current limit (max) (A) 7 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +20/-20% Current sense accuracy +2/-2% @0.5A FET Internal Features Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown Rating Catalog
Number of channels 4 Operating voltage (max) (V) 36 Operating voltage (min) (V) 5 Ron (typ) (mΩ) 160 Imax (A) 1.35 Current limit (min) (A) 0.25 Current limit (max) (A) 7 Current limit type Adjustable TI functional safety category Functional Safety-Capable Current limit accuracy +20/-20% Current sense accuracy +2/-2% @0.5A FET Internal Features Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown Rating Catalog
WQFN (RLH) 28 20 mm² 4 x 5
  • Quad-channel 160-mΩ smart high-side switch
  • Wide DC operating voltage range: 5 V to 36 V
    • 50-V absolute maximum voltage
  • Accurate adjustable current limiting (250 mA to 4 A)
  • Intelligent diagnostic features
    • TPS274160A: Open-drain fault output
    • TPS274160B: Analog current sense
    • 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/±15 kV 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
  • Quad-channel 160-mΩ smart high-side switch
  • Wide DC operating voltage range: 5 V to 36 V
    • 50-V absolute maximum voltage
  • Accurate adjustable current limiting (250 mA to 4 A)
  • Intelligent diagnostic features
    • TPS274160A: Open-drain fault output
    • TPS274160B: Analog current sense
    • 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/±15 kV 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

The TPS274160 device is a smart high-side switch with four integrated 160-mΩ NMOS power FETs and a chargepump 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 device 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 and minimizing overload current thereby eliminating system supply brown out 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.

The TPS274160 device is a smart high-side switch with four integrated 160-mΩ NMOS power FETs and a chargepump 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 device 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 and minimizing overload current thereby eliminating system supply brown out 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.

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Technical documentation

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Type Title Date
* Data sheet TPS274160 40-V, 160-mΩ Quad-Channel High-Side Switch datasheet (Rev. A) 12 Nov 2020
Application brief Faster Switching of Large Inductive Loads in Digital Output Modules PDF | HTML 15 Jul 2022
Design guide Eight Port IO-Link® Master Reference Design (Rev. C) PDF | HTML 16 Nov 2021
Technical article Bulk up your 24-VDC power distribution with industrial high-side switches PDF | HTML 04 May 2021
Application brief Converting SPI to GPIO Through Digital Isolators PDF | HTML 16 Oct 2020
EVM User's guide TPS274160 Evaluation Module User's Guide (Rev. A) PDF | HTML 16 Jun 2020

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