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load switch indicator dimly illuminated #5

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mossmann opened this issue Aug 7, 2019 · 4 comments
Open

load switch indicator dimly illuminated #5

mossmann opened this issue Aug 7, 2019 · 4 comments
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@yhetti
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enhancement potential new feature

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@mossmann
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mossmann commented Aug 7, 2019

D4 is dimly lit when Jasmine is charging with load switch SW1 turned off. This happens when charging from Azalea's USB port but not when charging from Jasmine's USB port. I assume this is due to reverse leakage through D2, but that would be good to test.
@mossmann
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If this issue persists with D2 removed, it might be caused by leakage from VBAT.

@yhetti
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yhetti commented Oct 16, 2019

Hopefully this will be fixed by adding the LDO. (issue #15)

@mossmann
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We measured current through LED at 0.5 mA (rev3). Raising the forward voltage of the LED by changing it from red to yellow or green may help.

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Removing D2 did stop D4 from turning on dimly, so this seems to be caused by reverse leakage through D2.

@straithe straithe added the enhancement potential new feature label Nov 1, 2021
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