Automotive, two-channel 120mΩ smart high-side switch with low-power mode

TPS2HC120-Q1 is an automotive

dual-channel, smart high-side switch, with integrated NMOS power FET and charge

pump, designed to meet the requirements of 12V automotive battery systems. The low

RON (120mΩ) minimizes the device power dissipation when driving a wide range of

output load current up to 2A when both channels are enabled or 2.5A when only one

channel is enabled.

The device integrates protection

features such as thermal shutdown, output clamp, and current limit. These features

improve system robustness during fault events such as short circuit. TPS2HC120-Q1

implements a selectable current limiting circuit that improves the reliability of

the system by reducing inrush current when driving large capacitive loads and

minimizing overload current. The device offers 10 selectable current limit settings

(0.25A to 5A) based on the external resistor used on the ILIM pin. The device also

provides an accurate load current sense that allows for improved load diagnostics

such as overload and open-load detection, which enables better predictive

maintenance.

TPS2HC120-Q1 is available in a 28-pin,

4.9mm × 7.1mm HVSSOP leaded package with 0.5mm pin pitch minimizing the PCB

footprint.