AnsweredAssumed Answered

ADP2302 not starting up.

Question asked by bridge on Feb 12, 2014
Latest reply on Feb 14, 2014 by bridge

With the ADP2302, I am encountering a problem where the device does not begin operation, does not turn on, about 2% of the time after the power switch is flipped.

 

The max input is +16.5V and implements the UVLO as described in the datasheet, the EN pin is at +1.50V which is above the max enable voltage of +1.28V.  The output is set for ~ +8.3V.  Note that touching a probe to the switch node or boost cap will cause it to start up.  I am still experimenting with removing the UVLO for the device to power-up with the input voltage.

 

Has anyone else experienced this type of problem?

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