LM5085: lm5085

user5205823

Part Number: LM5085

hi,

I used LM5085 for Battery Charger.The circuit input D21 is 40V/8A.The voltage of Battery is from 31V to 39V.And the current must be more than 1.5A.The following picture is my design.The current of this circuit is not meet the requirement.

over 7 years ago

0 Terry Allinder over 7 years ago

TI__Expert 3545 points

Hello,

Thanks for the question about the LM5085. Under what conditions do you not get 1.5A output? Have you tried to disconnecting the circuit for CV/CC operation, Q45 and R132 and apply the load directly across the output, C85?

Terry

0 user5205823 over 7 years ago in reply to Terry Allinder

Prodigy 20 points

Hello，

Thank for your reply.I use LM5085 for battery charger.When the voltage of battery was 30V to 37V.The current out of LM5085 is only about 300mA.

0 Terry Allinder over 7 years ago in reply to user5205823

TI__Expert 3545 points

Have you tried to disconnecting the circuit for CV/CC operation, Q45 and R132 and apply the load directly across the output, C85?

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LM5085: lm5085