Other Parts Discussed in Thread: TPS62002, TPS63000
Hi,
We have a challenge with the circuit attached, and IC5 (TPS62002).
When IC5 is enabled, we get 0.7-2.5A current draw, and a consequently warm chip.
On those PCBs having this problem we measure 55ohm (short) between L1/L2 and GND.
It seems like turning the circuit on for the first time leads to the short between L1/L2 and GND, since all untested PCBs shows around 3Mohm resistance between L1/L2 and GND (as they should).
Around 10% of our PCBs behave like this. The others behave normally.
IC4 (TPS63000) behaves normally.
Any ideas?
Thanks!
