1 Features
• AEC-Q100 qualified for automotive applications
– Temperature grade 1: –40°C to 125°C
– Withstands 36V load dump
• Dual-channel SPI controlled smart high-side switch
with integrated nFETs.
• Integrated wire-harness protection without MCU
involvement and a SPI programmable fuse curve
– Protection against persistent overload condition
• Improve system level reliability through SPI
programmable adjustable overcurrent protection
• SPI configurable capacitive charging mode to drive
a wide range of capacitive input ECUs load current
needs.
• Low quiescent current, low power ON-state to
supply always-ON loads with automatic wake on
load current increase with wake signal to MCU
• Robust integrated output protection:
– Integrated thermal protection
– Protection against short-to-ground
– Protection against reverse battery events
including automatic switch on of FET with
reverse supply voltage
– Automatic shut off on loss of battery and
ground
– Integrated output clamp to demagnetize
inductive loads
• Digital sense output via SPI can be configured to
measure:
– Load current accurately with integrated ADC
– Output or supply voltage, FET temperature
• Provides full fault diagnostics through SPI interface
and indication through FLT pin
– Detection of open load and short-to-battery

2 Applications
• Automotive zone ECU
• Power distribution modules
• Body control modules

3 Description
The TPS2HCS10-Q1 device is a dual channel,
smart high-side switch controlled through a serial
peripheral interface (SPI) and is intended for power
distribution and actuator drive applications. The
device integrates robust protection to ensure output
wire and load protection against short circuit or
overload conditions. The device features overcurrent
protection configurable via SPI with sufficient flexibility
to support loads that require large inrush currents
and provide improved protection. The device also
integrates a programmable fuse profile (current
versus time) that turns off the switch under persistent
overload condition. The two features together allow
optimization of the wire harness for any load profile
with full protection.
The device supports a SPI-configurable capacitive
charging mode for ECU loads in power distribution
switch applications. The device also includes two low
power mode (LPM) states, an auto entry mode or
a manual entry mode, that enables the device to
provide current to the load ECU while only consuming
about 10–20μA of current.
The TPS2HCS10-Q1 device also provides a high
accuracy digital current sense over SPI that allows for
improved load diagnostics. By reporting load current
and the channel output voltage and output FET
temperature to a system MCU, the device enables
diagnosis of switch and load failures.
The TPS2HCS10-Q1 is available in a HTSSOP
package which allows for reduced PCB footprint.