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LM5116: UVLO Capacitor Discharge

Part Number: LM5116

Hi,

Could you please explain how the additional D2 will help in discharge of CFT function during under-voltage condition,

considering I have kept the divider point to reach below 1.2V at input voltage of 40V. without D2 also the pin no.2 will be pulled down internally during any UVLO condition (less than 40V input voltage).

So exactly which is the undervoltage condition the D2 maybe helping? Is it really required?

Thanks,

Nesh