Part Number: TWL6030
As attached picture, Battery removal " Vback " basic follow VBAT drop then re-start- during VBAT=2.0V
I check: BATremoval= Low ; VBATMIN_Lo set on 2.75V
My question is:
1. Does this waveform is right ?(VBAT removal VBACK follow drop)
2. VBAT < VBATMIN , The TWL6030 into Back-up mode. right ?
3. Red block, TWL6030 what kind mode ?
Is there a battery installed on Vbackup? If so, what is the series resistance? If it has high series resistance it might explain why it droops initially and then pops back up.
Which OTP version of TWL6030 are you using? For example, TWL6030B1A3.
Figure 9 and Figure 10 in the datasheet shows the various states, but I don't see a clear indication of what VUPR and VPOR are.
I think the charger is almost the same on TWL6032 as in TWL6030, and it has a better diagram in Figure 4-3 of it's datasheet.
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