The TPS12000-Q1 is a 45-V low IQ smart high side driver with protection and diagnostics. With wide operating voltage range of 3.5 V–40 V, the device is suitable for 12-V system designs. The device can withstand and protect the loads from negative supply voltages down to –40 V. It has strong 1.69-A/2-A peak source/sink gate driver enabling 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 TPS12000-Q1, current sensing can be done either by an external sense resistor or by MOSFET VDS sensing. High or low side current sense resistor configuration is possible by using CS_SEL pin input.

Diagnosis of the integrated short circuit comparator can be done using external control on SCP_TEST input.The device indicates fault (FLT) on open drain output during during short circuit and input under voltage conditions. It also have a dedicate fault indication (FLT_GD) to indicate the gate drive UVLO condition.

Low Quiescent Current 43-µA operation enables always ON system designs. Quiescent current reduces to 1.5 μA (typical) with EN/UVLO low.