bq29330

bq29330 www.ti.com SLUS673E – SEPTEMBER 2005 – REVISED MARCH 2012 2-SERIES, 3-SERIES, AND 4-SERIES CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE Check for Samples: bq29330 FEATURES 1 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 progra...