1 Features

• 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

2 Applications

• Digital output modules

• Standalone remote I/O

• Motor drives

• Solenoid or valve drive

3 Description

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.