Dear Sir /Mam
There is one issue regarding LTC Mosfet driver IC 7004. IC is working fine with input from SMPS of about 28 Volts 8 amps , But as soon as we connect Battery input of about 24 Volts , IC gets damged , I am using IC7004 as high side application driver in my application to switch 28 volts from smps or battery output of about 24 Volts. Also I am not violating the pin voltage rating of INP and VCC of the IC both are in safe margin of about 7 Volts and 12 Volts Respectively. Also I had checked the current rating of INP pin when driver IC is on it is about 11 ampere. Reply as early as possible If required I could also share the circuit schematic.
I think this design needs input and output high voltage transient protection when the user connect this circuit to the battery manually.
I added my recommendations to the schematic. See below for…
Dear Sir thanks for your reply ,I am attaching the circuit schematic image as follows,Review and get back soon