BQ2962

Product Folder Order Now Technical Documents Tools & Software Support & Community BQ2961, BQ2962 SLUSBU5H – NOVEMBER 2013 – REVISED SEPTEMBER 2019 BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply 1 Features 1 2-series, 3-series, and 4-series cell overvoltage protection (OVP) Fixed delay timer to trigger FET drive output (3-s, 4-s, 5.5-s, or 6.5-s options) Factory programmed OVP threshold (threshold range 3.85 V to 4.6 V) Output options: active high High-accuracy overvoltage protection: ±10 mV Regulated supply output with self-disable and/or external enable/disable control – Options: 3.3-V, 2.5-V, and 1.8-V (BQ2960, BQ2961) – Options: 3.3-V, 3.15-V, 3.0-V (BQ2962) Low power consumption ICC ~ 4 µA (VCELL(ALL) < VPROTECT) Extra low power consumption with reg output disabled, ICC ~ 1.2 µA Low leakage current per cell input < 100 nA Small package footprint – 8-Pin WSON (2 mm × 2 mm) 2 Applications Notebook PC Ultrabooks Medical UPS battery backup 3 Description The BQ296xxx family is a high-accuracy, low-power overvoltage protector with a 2-mA regulated output supply for Li-Ion battery pack applications. Each cell in a 2-series to 4-series cell stack is individually monitored for an overvoltage condition. An internally fixed-delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, an output pin is triggered into an acti...