1FEATURES

• 2-Series, 3-Series, or 4-Series Cell Protection

Control

• Can Directly Interface with the bq803x-Based

Gas Gauge Family

• Watchdog and POR for the Host

• Provides Individual Cell Voltages and Battery

Voltage to Battery Management Host

• Capable of Operation With 5-mΩ Sense

Resistor Integrated Cell Balancing Drive

• I2C Compatible User Interface Allows Access

to Battery Information

• Programmable Threshold and Delay for

Overload Short Circuit in Discharge and Short

Circuit in Charge

• NMOS FET Drive for Charge and Discharge

FETs

• Host Control can Initiate Sleep and Ship Power

Modes

• Integrated 2.5-V, 16-mA LDO

• Integrated 3.3-V, 25-mA LDO

• Supply Voltage Range from 4.5 V to 28 V

• Low Supply Current of 100 μA Typical

APPLICATIONS

• Notebook Computers

• Medical and Test Equipment

• Instrumentation and Measurement Systems

DESCRIPTION

The bq29330 is a 2-series, 3-series, and 4-series cell lithium-ion battery pack full-protection analog front end

(AFE) IC that incorporates a 2.5-V, 16-mA and 3.3-V, 25-mA low dropout regulator (LDO). The bq29330 also

integrates an I2C-compatible interface to extract battery parameters such as battery voltage, individual cell

voltages, and control output status. Other parameters such as current protection thresholds and delays can also

be programmed into the bq29330 to increase the flexibility of the battery management system.