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LM5143: Lm5143IC in single mode operation with output battery not getting ON

Veera Chinnadurai A
Prodigy 20 points
Part Number: LM5143

Tool/software:

We are working with LM5143 IC for 50 Amps DC-DC Converter.
Conditions:
  1. Output battery with dual mode operation working- Vout 14.3
  2. Without Output battery  in single mode  working
  3. Output battery with single mode operation not working.
  4. Output battery with reverse leakage diode  in single mode working.
 
So, We found in single mode operation with output battery converter not getting on. But without battery getting on.
And once getting ON  after connect with battery also working fine.
 
Thanks & Regards,
Veera