ZHCSPT0 June 2022 BQ25172
PRODUCTION DATA
The VSET pin is used to program the device cell configuration using a ±1% pulldown resistor. The available pulldown resistors and corresponding cell configurations are listed in the following table.
| RESISTOR | CELL COUNT |
|---|---|
| > 80 Ω | No charge (open-circuit) |
| 62 kΩ | 1-cell |
| 47 kΩ | 1-cell + intermittent charge |
| 36 kΩ | 2-cell |
| 27 kΩ | 2-cell + intermittent charge |
| 24 kΩ | 3-cell |
| 18 kΩ | 3-cell + intermittent charge |
| 15 kΩ | 4-cell |
| 11 kΩ | 4-cell + intermittent charge |
| 8.2 kΩ | 5-cell |
| 6.2 kΩ | 5-cell + intermittent charge |
| 4.7 kΩ | 6-cell |
| 3.6 kΩ | 6-cell + intermittent charge |
| < 3.0 kΩ | No charge (short-circuit) |
If either a short- or open-circuit condition is detected, the charger stops operation and remains in the FAULT state until the input or TS pin is toggled.
Once a valid resistor value has been detected, the corresponding cell configuration is latched in and the pin is not continuously monitored during operation. A change in this pin is not acknowledged by the IC until the input supply or TS pin is toggled.