BQ24617 - 具有 5V–24V VCC 输入的独立同步开关模式锂离子或锂聚合物电池充电器
BQ24617是TI公司的一款电池充电器IC产品,BQ24617是具有 5V–24V VCC 输入的独立同步开关模式锂离子或锂聚合物电池充电器,本页介绍了BQ24617的产品说明、应用、特性等,并给出了与BQ24617相关的TI元器件型号供参考。
BQ24617 - 具有 5V–24V VCC 输入的独立同步开关模式锂离子或锂聚合物电池充电器 - 电池充电器IC - 电池管理产品 - TI公司(Texas Instruments,德州仪器)
产品特性
- 600-kHz NMOS-NMOS Synchronous Buck Converter
- Stand-Alone Charger Support for Li-Ion or Li-Polymer
- 5-V to 28-V VCC Input Operating Range and Supports 1- to 6-Battery Cells (bq24610)
- 5-V to 24-V VCC Input Operating Range and Supports 1- to 5-Battery Cells (bq24617)
- Up to 10-A Charge Current and Adapter Current
- High-Accuracy Voltage and Current Regulation
- ±0.5% Charge Voltage Accuracy
- ±3% Charge Current Accuracy
- ±3% Adapter Current Accuracy
- Integration
- Automatic System Power Selection From Adapter or Battery
- Internal Loop Compensation and Soft Start
- Dynamic Power Management
- Safety Protection
- Input Overvoltage Protection
- Battery Thermistor Sense Hot and Cold Charge Suspend
- Battery Detection
- Reverse Protection Input FET
- Programmable Safety Timer
- Charge Overcurrent Protection
- Battery Short Protection
- Battery Overvoltage Protection
- Thermal Shutdown
- Status Outputs
- Adapter Present
- Charger Operation Status
- Charge Enable Pin
- 6-V Gate Drive for Synchronous Buck Converter
- 30-ns Driver Dead-Time and 99.5% Maximum Effective Duty Cycle
- Energy Star Low Quiescent Current Iq
- < 15-µA Off-State Battery Discharge Current
- < 1.5-mA Off-State Input Quiescent Current
产品应用
- Netbooks, Mobile Internet Devices, and Ultra-Mobile PCs
- Personal Digital Assistants (PDAs)
- Handheld Terminals
- Industrial and Medical Equipment
- Portable Equipment
产品说明
The bq2461x is a highly integrated Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring.
The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage.
产品器件信息
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
bq24610 | VQFN (24) | 4.00 mm × 4.00 mm |
bq24617 |
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