I'm designing a switch for an automotive application and found this IC BTS428 that supposedly solves all my problems. Following the manual, i came with the following circuit (LATCH PUSHBUTTON).
Everything went well at first, the circuit work as intended and the SC/OverTemperature protection features worked fine. The problem happened in the reverse battery protection test. The momment i conected the supply with an inverse polarity (-13.5Vbb) (IN input in LOW STATE) i noticed a voltage output of -12.5V. The circuit overheated and stop working(even with the right polarity). After this test, the output was aways OFF (0V) regardless of IN state.
Can you help me find my mistake?