SLUSDO1B june 2019 – august 2023 BQ25155
PRODUCTION DATA
The following diagram summarizes the charging process of the BQ25155 charger.
When a valid input source is connected (VIN > VUVLO and VBAT+VSLP < VIN < VOVP), the state of the CE pin determines whether a charge cycle is initiated. When the CE input is high and a valid input source is connected, the battery charge FET is turned off, preventing any kind of charging of the battery. A charge cycle is initiated when the CHARGE_DISABLE bit is written to 0 and CE pin in low. Table 9-1 shows the CE pin and bit priority to enable/disable charging.
CE PIN | CHARGE _DISABLE BIT | CHARGING |
---|---|---|
0 | 0 | Enabled |
0 | 1 | Disabled |
1 | 0 | Disabled |
1 | 1 | Disabled |
Figure 9-2 shows a typical charge cycle.