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Question asked by Sidiq on Feb 22, 2018
Latest reply on Mar 5, 2018 by Gene323

Hi All,

I am facing an issues with LTC7004IMSE#PBF for gate driver to the MOSFET, 


I have a control from processor to enable LTC7004IMSE#PBF by driven 0V for OFF 3.3V for ON at the pin of INP .

I have connected external N-MOSFET. This N-Channel MOSFET Gate is connected to the TGUP and TGDN of LTC7004IMSE#PBF.

The N-Channel MOSFET Drain is Connected to the +12V. Depends upon the Gate driving I will get the +12V at the source terminal.

In some case , if I driving INP as High (+3.3V)  I won't get +12V at Source terminal instead if 500mV. 

If I reboot the system. this issues will clear. i get Source at +12V.

if I run continuous case I get this issue repeatedly after 15min or 30min. at the time I Probe the INP pin of LTC7004IMSE#PBF shows 3.3V.

I don't know where is the problem occur.

please let me know if you have any Suggestion to rectify this issues of LTC7004IMSE#PBF.

I am attaching the Schematics for your reference Please find the attachments.


Thanks and Regards,

Mohamed Sidiq.H