TPS482H85-Q1: This device is the device under evaluation by using this EVM. TPS482H85-Q1 is a dual channel smart high-side switch designed to meet the requirements of 24/48V automotive battery systems. The 85mΩ RON minimizes device power dissipation driving a wide range of output load currents and the 58V DC tolerance improves system robustness.

These features improve system robustness during fault events such as short circuit. TPS482H85-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. To drive high inrush current loads such as lamps or fast charging capacitive loads, TPS482H85-Q1 implements an inrush current time period with a higher level of allowed current. 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.

TPS482H85-Q1 is available in a small 12-pin, 3.5mm × 3mm QFN package minimizing the PCB footprint.

This EVM board comes populated with the B version of the TPS482H85-Q1 device so, the J9F/L jumper needs to be connected to the FAULT option (configured by default). For evaluation of versions A/C of the chip, the devices must be ordered separately, replaced and soldered on U2 on the board.

TPS7A1650: This LDO is used to provide an onboard 5V rail for easy use of the EVM out of the box.