The TPS48100-Q1 is a 100V low IQ smart high side driver with protection and diagnostics. With wide operating voltage range of 3.5V–80V, the device is suitable for 12V, 24V, and 48V system designs. The device can withstand and protect the loads from negative supply voltages down to –65V.

It has two strong 1.69A and 2A peak source and sink gate drivers with separate control inputs (INP1, INP2) to drive back to back MOSFETs in common source configuration. Strong GATE driving enables power switching using parallel FETs in high current system designs.

The device provides configurable short circuit protection using ISCP and TMR pins for adjusting the threshold and response time, respectively. Auto-retry and latch-off fault behavior can be configured. With TPS48100-Q1, current sensing can be done either by an external sense resistor or by MOSFET VDS sensing by using CS+ and CS– pins. High side or low side current sense resistor configuration is possible by using CS_SEL pin input. Diagnosis of the integrated short circuit comparator is possible using external control on SCP_TEST input.

The device indicates fault (FLT) on open drain output during short-circuit, charge pump undervoltage, and input undervoltage conditions.

Low quiescent current 35µA (typical) in operation enables always ON system designs. Quiescent current reduces to 1.5μA (typical) with EN/UVLO low.