AnsweredAssumed Answered

on NXP PCAL6416AHF,128 - I/O Expander,

Question asked by Siddeshappa MS on Sep 26, 2019
Latest reply on Oct 9, 2019 by G.w. Sun

Hi Nxp Team,

 

Please advice us on the below customer issue.@

 

 

NXP PCAL6416AHF,128 - I/O Expander, 16bit, 400 kHz, I2C, 1.65 V, 5.5 V, HWQFN URL NXP: https://www.nxp.com/part/PCAL6416AHF

 

ISSUE: 10 of the 25 defects. The complete circuit in which this device is used just does not work... "Dead". By replacing them with a good one the circuit works just fine. Please check the two attached images of the imprint on the devices. Defect IO chip.bmp Good.bmp

 

QUESTION: How to go forth with NXP? Can they recognize something by these imprints and what the possible workaround might be? Maybe a start current being slightly too high or a voltage out of a certain window?

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