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RF430F5978: Inquiry for RF430F5978 issue

Part Number: RF430F5978


Dear TI FAE team,

This is DS Kim from Artview in Korea.

I have issue of RF430F5978  that is not working as below condition.

- Application:  Smart Key for Heavy vehicle

- TI part no.: RF430F5978

- Issue and inquiry

  Sleep mode and wake up mode doesn't work intermittently.

 When signal input (sleep mode (high) to wake up mode (low)), Vcore does not work (Vcore output is 0V.)

 When system RESET that is power on and off, this issue is cleared.

Could you please give an advice of issue why Vcore output is not working?

I'm looking forward to your reply.

Thanks and best regards,

DS Kim