BQ24620 - 用于磷酸锂电池的 28V 同步开关模式充电管理 IC

BQ24620是TI德州仪器公司的一款电池充电器IC产品，BQ24620是用于磷酸锂电池的 28V 同步开关模式充电管理 IC，本站介绍了BQ24620的封装应用图解、特点和优点、功能等，并给出了与BQ24620相关的TI元器件型号供参考。

BQ24620 - 用于磷酸锂电池的 28V 同步开关模式充电管理 IC - 电池充电器IC - 电池管理产品 - 德州仪器

产品特性

300-kHz NMOS-NMOS Synchronous Buck Converter
Stand-Alone Charger Designed Specifically for Lithium Phosphate
5-V to 28-V VCC Operating Range, Supports 1 to 7 Battery Cells
High-Accuracy Voltage and Current Regulation
- ±0.5% Charge Voltage Accuracy
- ±3% Charge Current Accuracy
Integration
- Internal Loop Compensation
- Internal Soft Start
Safety
- Input Overvoltage Protection
- Battery Thermistor Sense Suspend Charge at Hot/Cold Charge Suspend and Automatically ICHARGE/8 at WARM/COOL
- Battery Detection
- Built-In 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 99.95% Maximum Effective Duty Cycle
16-Pin 3.5-mm × 3.5-mm QFN Package
Energy Star Low Iq
- < 15-μA Off-State Battery Discharge Current
- < 1.5-mA Off-State Input Quiescent Current

产品应用

Power Tools and Portable Equipment
Personal Digital Assistants
Handheld Terminals
Industrial and Medical Equipment
Netbooks, Mobile Internet Devices, and Ultramobile PCs

产品说明

The bq24620 device is a highly integrated lithium phosphate 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, and charge status monitoring.

The bq24620 charges the battery in three phases: preconditioning, constant current, and constant voltage.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
bq24620	VQFN (16)	3.50 mm × 3.50 mm

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