1 Features

• Dual-Channel smart high-side switch with full

diagnostics

– Control using GPIO pins

– Open-drain status output

– Current sense analog output, <±2.5% at ≥ 1A

• Wide operating voltage 3V to 28V

• Low RON: 9.4mΩ typical, 19mΩ max

• Ultra-low standby current, <1.5μA

• Adjustable current limit with and without thermal

regulation

– Current limit range: 7.5A to 30A

• Protection

– Overload and short-circuit protection

– Undervoltage lockout (UVLO)

– Thermal shutdown and swing with self recovery

– Integrated output clamp to demagnetize

inductive loads

– Loss-of-GND, loss-of-battery, and reverse

battery protection

• Diagnostics

– Global fault report for fast interrupt

– Overcurrent and short-to-ground detection

– Open-load and short-to-battery detection

• Qualified for automotive applications

– AEC-Q100 qualified with the following results:

• Temperature grade 1: –40°C to 125°C

ambient operating temperature range

– Electrical transient disturbance immunity

certification of ISO7637-2 and ISO16750-2

• Small footprint: 11-pin QFN 2.2mm × 3.6mm,

0.55mm pitch

2 Applications

• Incandescent and LED lighting

• Body control module

• Zone control module

3 Description

TPS2HC08-Q1 is a dual-channel, smart high-side

switch, with integrated NMOS power FETs and charge

pump, designed to meet the requirements of 12V

automotive battery systems. The low RON (9.4mΩ)

minimizes device power dissipation when driving a

wide range of output load current up to 7.5A DC when

both channels are enabled or 10A DC when only one

channel is enabled.

The device integrates protection features such as

thermal shutdown, output clamp, and current limit.

TPS2HC08-Q1 implements an adjustable current

limiting circuit that improves the reliability of the

system by reducing inrush current when driving large

capacitive loads and minimizing overload current. The

adjustable current limit can be adjusted from (7.5A to

30A) using an external resistor on the ILIM pin. The

devices offers current limit settings with and without

thermal regulation. The thermal regulated current limit

can be useful when charging large capacitors at startup.

The current limit setting without thermal regulation

is useful for loads such motor stall currents or bulb

loads.

The device also provides an accurate load current

sense that allows for improved load diagnostics such

as overload and open-load detection enabling better

predictive maintenance. TPS2HC08-Q1 is available in

a 11-pin, 2.2mm × 3.6mm QFN leaded package with

0.55mm pin pitch minimizing the PCB footprint.