3 Application of TPS1210-Q1 and TPS4810-Q1 to accomplish the Battery Disconnect Switch Design

The battery disconnect switch is responsible for the entire control of the switches that connect and disconnect the battery from the load. The battery disconnect switch needs to accomplish the following tasks with diligence and precision:

1. Drive parallel branches back to back FETs between the battery and the load.
2. Provide protection to the BMS as well as the down stream components from short circuit current and reverse polarity.
3. Provide diagnostic support for hassle free debug in the event of a failure or malfunction.
4. Have low power dissipation to maintain the thermal stability inside the battery pack.

The previous features, if not more, can be realized using the TPS1210-Q1 and TPS4810-Q1 high-side drivers in the battery disconnect switch design.