ZHCSKO3B January 2020 – September 2020 BQ25611D
PRODUCTION DATA
When battery charging is enabled (CHG_CONFIG bit = 1 andCE pin is LOW), the device autonomously completes a charging cycle without host involvement. The device default charging parameters are listed in Table 9-3. The host configures the power path and charging parameters by writing to the corresponding registers through I2C.
| DEFAULT MODE | BQ25611D |
|---|---|
| Charging voltage | 4.20 V |
| Charging current | 1.02 A |
| Pre-charge current | 180 mA |
| Termination current | 180 mA |
| Temperature profile | JEITA |
| Safety timer | 10 hours |
A new charge cycle starts when the following conditions are valid:
The device automatically terminates the charging cycle when the charging current is below the termination threshold, the battery voltage is above the recharge threshold, and the device is not in DPM mode or thermal regulation. When a fully charged battery is discharged below recharge threshold (selectable through VRECHG bit), the device automatically starts a new charging cycle. After the charge is done, toggle CE pin or CHG_CONFIG bit will initiate a new charging cycle. Adapter removal and replug will also restart a charging cycle.
The STAT output indicates the charging status: charging (LOW), charging complete or charge disable (HIGH) or charging fault (blinking). The status register (CHRG_STAT) indicates the different charging phases: 00-charging disable, 01-pre-charge, 10-fast charge (CC) and constant voltage (CV), 11-charging done. Once a charging cycle is completed, an INT pulse is asserted to notify the host.