BQ24600
- 1.2-MHz NMOS-NMOS Synchronous Buck Converter
- Stand-Alone Charger Support for Li-Ion or Li-Polymer
- 5-V – 28-V VCC Input Voltage Range and Supports
1S-6S Battery Cells - Up to 10-A Charge Current and Adapter Current
- 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 Hot/Cold Charge Suspend
- 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 Power Converter
- 30-ns Driver Dead-Time and 99.5% Max. Effective Duty Cycle
- 16-Pin 3.5-mm × 3.5-mm QFN package
- Energy Star Low Quiescent Current Iq
- < 15-µA Off-State Battery Discharge Current
- < 1.5-mA Off-State Input Quiescent Current
The bq24600 is a highly integrated Li-ion or Li-polymer switch-mode battery-charge controller. It offers a constant-frequency synchronous PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring,
The bq24600 charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum level. An internal charge timer provides a safety backup. The bq24600 automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low-quiescent-current sleep mode when the input voltage falls below the battery voltage.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | bq24600 Stand-Alone Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Charger with Low Iq 数据表 (Rev. B) | PDF | HTML | 2014-11-5 | ||
| 应用手册 | BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers | 2019-12-31 | ||||
| 产品概述 | Battery Management Solutions for Point of Sale Systems | 2014-8-18 |
设计与开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
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PMP10921 — 14V-24Vdc 输入电压、3 节串联锂离子电池充电器参考设计
PMP10921 参考设计使用 BQ24600 锂离子同步降压控制器最多可对三节串联电池充电。它旨在以 0.372A 的电流为电芯充电,但可通过改变一个电阻器以更高的电流进行充电。电路板面积小于 20mm x 20mm。
TIDA-00037 — 多节同步开关模式充电器的参考设计
该参考设计采用 bq24600,是一款高度集成的锂离子或锂聚合物开关模式电池充电控制器解决方案。其支持高度集成的开关模式电池充电控制器,专门设计用于为磷酸锂电池化学物充电。该设计中包含高度集成的超级电容器开关模式充电控制器,可提供恒定频率的同步 PWM (...)
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VQFN (RVA) | 16 | Ultra Librarian |
订购和质量
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