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TPS6594-Q1: TPS65941120RWERQ1

Rata Zhang
Expert 2840 points
Part Number: TPS6594-Q1
Other Parts Discussed in Thread: TDA4VL

How do you do!

We are using TPS65941120RWERQ1, TPS65941421RWERQ1 and LP876411B5RQKRQ1  for  TDA4VL. Now  we  have  a  problem,  three PMIC are all not working.They  donot have output voltage and LDO output voltage.

   VOUT_LDOVRTC  and  VOUT_LDOVINT  are  1.8V. Input  voltage is right(VCCA3V3=3.3V).We use “TPS65941111EVM” by I2C ,it can connect TPS65941421RWERQ1 and LP876411B5RQKRQ1 ,but can’t connect  TPS65941120RWERQ1.

For example

 

We can't see what the problem is.Please show us what went wrong.

Does it have anything to do with whether TDA4VL works?

    Thanks!