AnsweredAssumed Answered

ADM1166 Programmable Driver Output(12V charge-pump output) is not coming for a single channel

Question asked by Sonu57 on Dec 30, 2015
Latest reply on Jan 12, 2016 by hopal

Hi,

 

I am using ADM1166 for monitoring & sequencing the supplies in my board.

 

All the charge pump output of the ADm1166 i.e. PDO1 to PDO6 should give a output voltage of 12V.

 

PDO1 to PDO5 is giving a output voltage of 12V.

 

But PDO6 is not giving  12V instead it is giving a less voltage between 0.075 to 0.15V.

 

The PDO6 pin & ground impedance is 442ohm & the impedance of other outputs i.e. PDO1 to PDO5 to ground is 1.5Mohm.

 

I am suspecting the ADM1166 sequencer CONFIGURABLE OUTPUT DRIVER (HV) for the particular channel gone bad.

 

Can you suggest how the output driver would have failed.

 

Regards,

Soumya S

Outcomes