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.