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TPS65145: TPS65145 question about the cause of VBAIS voltage becoming 8V?

Part Number: TPS65145
Other Parts Discussed in Thread: TIDA-00570

Dear support member,

I have a question.

From the circuit diagram below
I made a board of TPS65145.

VOFS and VRST output 8.5V and -10V, respectively, but VBIAS was 8V.
The voltage of FB3 was 0.6V.

Could you tell me the cause?
Why is FB3 going to 0.6V?

Best regard.
Bob Lee.