1 Features

? Single-channel, smart automotive, high side power

switch with full diagnostics

– Open-drain status output

– Current sense analog output

? Wide operating voltage 3 V to 28 V

? Low standby current, 2.5 μA at 85°C

? Operating junction temperature, –40 to 150°C

? 1.8-V, 3.3-V and 5-V logic compatible

? Fault sense voltage scaling for ADC protection

? Programmable current limit and accuracy ±15 at

3.5 A

? High-accuracy current sense, ±6 at 1 A

? Protection

– Overload and short-circuit protection

– Inductive load negative voltage clamp

– Undervoltage Lockout (UVLO) protection

– Thermal shutdown and swing with self recovery

– Loss of GND, loss of supply protection

– Reverse battery protection

? Diagnostic

– On-state and Off-state output open-load and

short-to-battery detection

– Overload and short to ground detection

– Thermal shutdown and swing detection

? Qualifications

– AEC-Q100 qualified for automotive

applications:

? Temperature grade 1: –40°C to +125°C, TA

– Electrical transient disturbance immunity

certification of ISO7637-2 and ISO16750-2

? 14-pin, thermally-enhanced PWP package

2 Applications

? Automotive display module

? ADAS modules

? Seat comfort module

? HVAC control module

? Body control module

3 Description

The TPS1HC30-Q1 device is a fully protected, highside

power switch with integrated NMOS power FET

and charge pump, targeted for the intelligent control

of the variable kinds of loads. Accurate current sense

and programmable current limit features differentiate

the device from the market.

Low-logic, high-threshold, VIH, of 1.5 V on the

input pins allow use of MCUs down to 1.8 V.

High-accuracy current sensing allows a better realtime

monitoring effect and more accurate diagnostics

without further calibration. The external high-accuracy

current limit allows setting the current limit value

by application. The device highly improves the

reliability of the system by clamping the inrush current

effectively under start-up or short-circuit conditions.

The TPS1HC30-Q1 device can be used as a highside

power switch for a wide variety of resistive,

inductive, and capacitive loads, including the lowwattage

bulbs, LEDs, relays, solenoids, and heaters.