Dear ST Technical Support,
I would like to inquire about the short-circuit protection behavior of the VN7003ALH high-side switch.
Application: Board with 6× VN7003ALH outputs.
Configuration: 24V supply from 200Ah lead-acid battery. Output wiring: 1.5m of 12 AWG.
Issue: With output ON, a hard short circuit was applied via 600A mechanical contactor. The VN7003ALH did not survive — the package cracked (photo attached).
Question: Is this behavior expected? We assumed the integrated short-circuit protection would handle such transients. Are there specific source impedance or di/dt limitations we should be aware of that are not covered in the datasheet?
Best regards,
Artem
