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Hi,
I set 20 pcs of 20737S based system to test overnight yesterday. Everything worked fine until this morning.
When I checked again around noon, I found the temperature of 1 of the 20 pcs is high. Then, check the VBAT pin voltage, found it is short to GND. So, I detach the 20737S from main board and check again. Confirm the VBAT is short to GND. It's difficult to know what happens, because others are still working after 1 day functional test. Is there any suggestion? Should I return the chip for analyzing?
Thanks,
Brian
Solved! Go to Solution.
- Labels:
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Debug
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Manufacturing and Test
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PCBLayout
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please work with your distributor - avnet - to request rma for analysis if you suspect chip failure
- Mark as New
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please work with your distributor - avnet - to request rma for analysis if you suspect chip failure