AnsweredAssumed Answered

ADM1276 always ON

Question asked by LPR13 on Mar 14, 2014
Latest reply on Jun 20, 2014 by Ren

Hi,

 

I designed a board with 4 adm1276, all independant, except for the I2C link.

On the board :

3 ADM1276 are OK, One, I2C adresse "11", is always "ON", ENABLE pin has no effect. voltage level are OK. Enable PIn toggle with correct level.

plus, it is not responding on I2C, no ACK. the 3 others are reachable via I2C.

 

I have three PCB, 1 is OK , 2 have the same Problem. No Short Circuit, no missing voltage.

 

Any suggestions ?

Outcomes