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LM5050-1: LM5050 Vgs is not hign enough

Part Number: LM5050-1

Hi team,

My customer is doing a OR-ing circuit with LM5050-1. Please see below schematic. The load current is about 3A. When the 24V+ input is powered on, the +24V_OUT is 23.6V and the VGS of Q3 is only 0.2V. 

They used to use LM5050-1 in a larger load current use case and it works well. So could you please help check why Q3 cannot be completely turned on in this case? Thanks.

Best regards,

Wayne