bq29440 Datasheet (Texas Instruments)

bq29440, VOLTAGE PROTECTION

The bq2944x is a secondary overvoltage protection IC for 2-series, 3-series, or 4-series cell Li-Ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit.

FUNCTION The voltage of each cell in a battery pack is compared to an internal reference voltage.

If any cells

bq29440 Features

* 1

* 2-Series, 3-Series, or 4-Series Cell Secondary Protection

* External Capacitor-Controlled Delay Timer

* Low Power Consumption ICC < 2 µA Typical [VCELL(ALL) < VPROTECT]

* High-Accuracy Overvoltage Protection: ±25 mV with TA = 0°C to 60°C

* Fixed Overvoltag