BQ77910ADBT集成电路（IC）的电池管理规格书PDF中文资料

BQ77910ADBT属于集成电路（IC）的电池管理。由德州仪器制造生产的BQ77910ADBT电池管理电池管理 PMIC（电源管理集成电路）系列产品可用于电池相关的监测和控制功能，包括身份验证、电池平衡、状态监测、电量计量、电源选择、短路保护、过压和欠压保护等等。请注意，虽然该系列中的某些产品可能包括电池充电功能，但将充电功能作为主要功能的产品是单独分类的。

1 Features

• 4-, 5-, 6-, 7-, 8-, 9-, or 10-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 50 V

• Integrated 3.3-V Micro-Power LDO Regulator

• Low Supply Current

– Normal Mode: 50 μA, Typical

– Shutdown Mode, LDO OFF: 3 μA, Typical

• 38-Pin TSSOP Package

• Internal 50-mA Automatic Cell Balancing

2 Applications

• Cordless Power Tools

• Cordless Lawn Equipment

• Electric Bikes

• UPS

• Light Electric Vehicles (LEV)

3 Description

The bq77910A is a battery protection and cell balancing device intended for Li-Ion and Li-Polymer battery packs.

The bq77910A monitors 4- to 10-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.

Automatic cell balancing is provided using internal 50-mA cell circuits. A robust balancing algorithm ensures

optimum performance by maintaining all cell voltages in balance. Balancing may be configured to operate at all

times, only during charge, or can be disabled completely.