bq29419 Datasheet, Texas Instruments

1
* 2-, 3-, or 4-Cell Secondary Protection
* Low Power Consumption ICC < 2 µA [VCELL(ALL) < V(PROTECT)]
* Fixed High Accuracy Overvoltage Protection Threshold.

* 2nd-Level Overvoltage Protection in Li-Ion Battery Packs in:
  – Notebook Computers
  .

The bq2941x is a secondary overvoltage protection IC for 2-, 3-, or 4-cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit. It includes a programmable delay circuit for overvoltage detection time. .