ZHCSHD3K October 2017 – July 2024 BQ2980 , BQ2982
PRODUCTION DATA
Table 7-1 provides guidance on possible configurations of the BQ2980 and BQ2982 devices.
Texas Instruments preprograms devices: Devices are not intended to be further customized by the customer.
| FAULT | RANGE | STEP SIZE | UNIT | DELAY SELECTION | CHG, DSG STATUS | RECOVERY DESCRIPTION (Non-Configurable) | |
|---|---|---|---|---|---|---|---|
| OV | Overvoltage | 3750 – 5200 | 50 | mV | 0.25, 1, 1.25, 4.5 s | CHG OFF | (200-mV hysteresis AND charger removal) OR (below OV threshold AND discharge load is detected) |
| UV | Undervoltage | 2200 – 3000 | 50 | mV | 20, 96, 125, 144 ms | Option 1: UV_SHUT enable The device goes into SHUTDOWN. | (200-mV hysteresis AND discharge load is removed before device shuts down) OR (above UV threshold AND charger connection) |
| Option 2: UV_SHUT disable DSG off, power consumption drops to IFETOFF, and the device does not shut down. | (200-mV hysteresis) OR (above UV threshold AND charger connection) | ||||||
| OCC | Overcurrent in Charge | –64 – –4 | 2 | mV | 8, 16, 20, 48 ms | CHG OFF | Detect a charger removal (VBAT – VPACK) > 100-mV typical |
| OCD | Overcurrent in Discharge | 4 – 64 | 2 | mV | DSG OFF | Detect a discharge load removal (VBAT – VPACK) < 400-mV typical | |
| SCD | Short circuit in discharge | 10, 20, 30, 40, 60, 120, 200 | — | mV | Fixed 250 µs | ||
| OT | Overtemperature (through internal temperature sensor) | 75, 85 | — | °C | Fixed 4.5 s | CHG and DSG OFF | Fixed 15°C hysteresis |
| OT (PTC) | Internal pull-up resistor for OT with PTC (through external PTC on CTR pin) | 1.5, 5, 8 | — | MΩ | — | CHG and DSG OFF | Voltage on CTR pin drops below CTR VIL level |