BQ77908A Datasheet Multi-Cell Lithium-Ion/Polymer Precision Protector

Manufacturer: Texas Instruments

BQ77908A multi-cell lithium-ion/polymer precision protector by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	BQ77908A
Manufacturer	Texas Instruments
File Size	1.50 MB
Description	Multi-Cell Lithium-Ion/Polymer Precision Protector
Download	BQ77908A Download (PDF)

General Description

The bq77908A is a battery protection and cell balancing device intended for Li-Ion and Li-Polymer battery packs.

The bq77908A monitors 4- to 8-series individual cell voltages and provides fast-acting outputs that may be used to drive N-channel MOSFETs to interrupt the power path.

Activation delays and recovery methods for safety conditions are fully programmable in non-volatile memory.

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq77908A SLUSAV5A – FEBRUARY 2012 – REVISED OCTOBER 2014 bq77908A Multi-Cell Lithium-Ion/Polymer Precision Protector Not Recommended.

Key Features

4-, 5-, 6-, 7-, or 8-Series Cell Protection.
Individual Cell-Voltage Monitoring.
Low-Side NMOS FET Drive for Charge and Discharge Control.
Compatible With 1-mΩ Current-Sense Resistor.
Supply-Voltage Range From 5.6 V to 40 V.
Integrated 3.3-V Micro-Power LDO Regulator.
Low Supply Current.
Normal Mode: 50 µA, Typical.
Shutdown Mode, LDO OFF: 5 µA, Typical 1.
38-Pin TSSOP Package.
Internal 50-mA Aut.

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