BQ24085 - 具有热调节的 750mA 单片锂离子/锂聚合物充电管理 IC

BQ24085是TI德州仪器公司的一款电池充电器IC产品，BQ24085是具有热调节的 750mA 单片锂离子/锂聚合物充电管理 IC，本站介绍了BQ24085的封装应用图解、特点和优点、功能等，并给出了与BQ24085相关的TI元器件型号供参考。

BQ24085 - 具有热调节的 750mA 单片锂离子/锂聚合物充电管理 IC - 电池充电器IC - 电池管理产品 - 德州仪器

产品描述

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. An internal programmable charge timer provides a backup safety feature for charge termination and is dynamically adjusted during the thermal regulation phase. The bq24085/6/7/8 automatically restarts the charge if the battery voltage falls below an internal threshold; sleep mode is set when the external input supply is removed. Multiple versions of this device family enable easy design of the bq24085/6/7/8 in cradle chargers or in the end equipment, while using low cost or high-end AC adapters.

产品特性

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

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