锂离子充电器,BQ24103 BQ24103RHLR
产品简介
采用 QFN 封装具有 2A FET 的 bqSWITCHER(TM) 同步开关模式锂离子充电器,1 节或 2 节独立版本,BQ24103RHLR同步开关模式锂离子充电器,BQ24103
产品详细信息
同步开关模式锂离子充电器,BQ24103
采用 QFN 封装具有 2A FET 的 bqSWITCHER(TM) 同步开关模式锂离子充电器,1 节或 2 节独立版本,BQ24103RHLR
产品信息
特性
- Ideal For Highly Efficient Charger Designs For Single-, Two- or Three-Cell Li-Ion and Li-Polymer Battery Packs
- Integrated Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
- Integrated Power FETs For Up To 2-A Charge Rate
- High-Accuracy Voltage and Current Regulation
- Available In Both Stand-Alone (Built-In Charge Management and Control) and System-Controlled (Under System Command) Versions
- Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
- 20-V Maximum Voltage Rating on IN and OUT Pins
- High-Side Battery Current Sensing
- Battery Temperature Monitoring
- Automatic Sleep Mode for Low Power Consumption
- System-Controlled Version Can Be Used In NiMH and NiCd Applications
- Reverse Leakage Protection Prevents Battery Drainage
- Thermal Shutdown and Protection
- Built-In Battery Detection
- Available in 20-Pin, 3,5 mm × 4,5 mm QFN Package
- APPLICATIONS
- Handheld Products
- Portable Media Players
- Industrial and Medical Equipment
- Portable Equipment
说明
The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package. The system-controlled version provides additional inputs for full charge management under system control.
The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.
深圳市晶瀚科技有限公司,代理TI,BB系列IC,CHIP,电子元器件,集成电路,视频解码,触摸屏驱动IC,音频,数据转换,放大器,逻辑,电源管理,升压/降压。
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