BQ2946
SLUSAS0E – DECEMBER 2011 – REVISED APRIL 2021
BQ2946xx Single-Cell Protector for Li-Ion Batteries
1 Features
• Single-Cell Over
voltage Monitor for Secondary Protection
• Fixed Programmable Delay Timer • Fixed Over
voltage 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
2 Applications
• Second-level protection in Li-ion battery packs in: – Tablets – Slates – Portable equipment and instrumentation
3 Description
The BQ2946xx family of products is a secondary-leve...