Dear, Sir.
My custoimer already started system mass-production applying BQ2014.
They are facing several % system field failure which is related to the device.
DONE pin is pull-down to Vss by 220kOHM resister according Datasheet & it is
controlled by MSP430 GP I/O. 1kOHM dumping resistor is also located
on the interface.
System failure phenomenon is ;
FLGS1 bit(3), VDQ never change to "1" even if DONE input Ｌ=>H by MSP430.
The bit is monitoring by MSP430, so system shut-down is occurred at time-out
(The bit never change to "1" during long time).
1. I can not find any DONE pin specification on the datasheet.
Could you let me know that, such as Vih/vIL, i souce/Isink?
2. Please give your advice about potential cause relating to the failure phenomenon.
Best Regards,
H. Sakai
