ZHCSNF1 February 2021 BQ25960
PRODUCTION DATA
When host determines the adapter support bypass mode charging, the device can enable Bypass mode by setting EN_BYPASS=1. Blocking FET (QB) and four high side switching FET (QCH1 and QDH1/ QCH2 and QDH2) are turned on to charge from adapter to battery. During Bypass Mode, when fault occurs, CHG_EN is cleared but EN_BYPASS stays ‘1’.
To change from Bypass Mode to Switched Cap Mode or from Switched Cap to Bypass Mode, the host would first set CHG_EN=0 to stop the converter and then set EN_BYPASS to desired value. The host sets desired protection threshold based on the selected operation modes and then host enables charge by setting CHG_EN=1.