Packaging information
| Package | Pins WSON (DRV) | 6 |
| Operating temperature range (°C) -40 to 110 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the BQ2946
- Single-Cell Overvoltage Monitor for Secondary Protection
- Fixed Programmable Delay Timer
- Fixed Overvoltage Protection
(OVP) Threshold
- Available Range of 3.85V to 4.6V
- Fixed OVP Delay Option: 4s or 6.5s
- High-Accuracy OVP: ±10mV
- Low Power Consumption ICC approximately 1µA (VCELL(ALL) < VPROTECT)
- Low Leakage Current per Cell Input < 100nA
- Small Package Footprint
- 6-Pin SON
Description for the BQ2946
The BQ2946xx family of products is a secondary-level overvoltage monitor and protector for Li-Ion battery pack systems. The cell is monitored for overvoltage condition and triggers an internal counter once the OVP threshold is exceeded; after a fixed set delay, the out is transitioned to a high level. The output is reset (goes low) if the cell voltage drops below the set threshold minus the hysteresis.