BQ24085DRCTG4

750毫安单片锂离子/锂聚合物充电管理IC 750 mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC

DESCRIPON

The bq24085/6/7/8 series are highly integrated Li-Ion and Li-Pol linear chargers, targeted at space-limited portable applications. The bq24085/6/7/8 series offers a variety of safety features and functional options, while still implementing a complete charging system in a small package. The battery is charged in three phases: conditioning, constant or thermally regulated current, and constant voltage. Charge is terminated based on minimum current.

FEATURES

• Ideal for Low-Dropout Designs for Single-Cell Li-Ion or Li-Pol Packs in Space Limited Applications

• Integrated Power FET and Current Sensor for up to 750-mA Charge Applications

• Reverse Leakage Protection Prevents Battery Drainage

• ±0.5% Voltage Regulation Accuracy

• Thermal Regulation Maximizes Charge Rate

• Charge Termination by Minimum Current and Time

• Precharge Conditioning With Safety Timer

• Status Outputs for LED or System Interface Indicate Charge, Fault, and Power Good Outputs

• Short-Circuit and Thermal Protection

• Automatic Sleep Mode for Low Power Consumption

• Small 3×3 mm MLP Package

• Selectable Battery Insertion and Battery Absent Detection

• Input Overvoltage Protection

  – 6.5 V and 10.5 V Options

APPLICATIONS

• PDA, MP3 Players, Digital Cameras

• Internet Appliances and Handheld Devices