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TPS65020_ acknowledgement is negative in SDAT line [pin 29]

Manikandan Selvaraj96626
Prodigy 90 points
Other Parts Discussed in Thread: TPS65020

for one of my customer ,We had shipped TPS65020 , batch code for the same is 2CK CQ09. customer is not able to get proper ack signal at SDAT [pin 29] when they try to write to TPS65020 via serial interface with Marvel processor.  

Customer had Replaced the new batch TPS65020 IC with earlier shipped TPS65020 from batch numbers from 23W Z88C, 1DK CD3V, 15W 278G & 21K D0G1. They found it is working fine.

1.Need to know whether any device address change is done in TPS65020 recently?

 2.can you plz share the latest PCN for TPS65020?

 Rgds,

Mani

  • 0
    TI__Genius 16870 points

    Sorry Mani for the delay. 

    The TPS65020's I2C slave address is x48. Please refer to pages 29 - 31 and verify that you are meeting the requirement for I2C timing with accordance of the TPS65020. If you are not sure please take some scope shots of the SDAT and SCLK read and writes for me to verify.