The bq2946xx family of products is a secondary-level overvoltage monitor and protectorfor Li-Ion battery pack systems. The cell is monitored for overvoltage condition and triggers aninternal counter once the OVP threshold is exceeded; after a fixed set delay, the out istransitioned to a high level. The output is reset (goes low) if the cell voltage drops below theset threshold minus the hysteresis.
Feature
- Single-Cell Overvoltage Monitor for Secondary Protection
- Fixed Programmable Delay Timer
- Fixed Overvoltage Protection (OVP) Threshold
- Available Range of 3.85 V to 4.6 V
- Fixed OVP Delay Option: 4 s or 6.5 s
- High-Accuracy OVP:
± 10 mV - Low Power Consumption ICC ≈ 1 μA
(VCELL(ALL) < VPROTECT) - Low Leakage Current per Cell Input < 100 nA
- Small Package Footprint
- 6-Pin SON
