JAJSG82A November 2015 – September 2018
PRODUCTION DATA.
The PCHG output driver is designed to drive a P-channel FET and is controlled by the PCHG_EN pin. The PCHG driver provides an option to implement a separate charging path with a P-channel FET to charge the battery when the cells are deeply depleted. A resistor should be added in series to the P-channel pre-charge FET to limit the charging current. A pre-charge current is usually at or less than 1/20 of the normal charge current if the charger does not support lower current pre-charge. Refer to the battery cell specification from the cell manufacturer charging for the appropriate current limit.
PCHG_EN | PCHG |
---|---|
Lo (default) | OFF (default) |
Hi | ON |