BQ24150A
- Charge Faster than Linear Chargers
- High-Accuracy Voltage and Current Regulation
- Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
- Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)
- Charge Current Regulation Accuracy: ±5%
- High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
- 20-V Absolute Maximum Input Voltage Rating
- 6-V Maximum Operating Input Voltage
- Built-In Input Current Sensing and Limiting
- Integrated Power FETs for Up To 1.25-A Charge Rate
- Programmable Charge Parameters through I2C Interface (up to 3.4 Mbps):
- Input Current
- Fast-Charge/Termination Current
- Charge Voltage (3.5 V to 4.44 V)
- Safety Timer with Reset Control
- Termination Enable
- Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
- Robust Protection
- Reverse Leakage Protection Prevents Battery Drainage
- Thermal Regulation and Protection
- Input/Output Overvoltage Protection
- Status Output for Charging and Faults
- Automatic High Impedance Mode for Low Power Consumption
- USB Friendly Boot-Up Sequence
- Automatic Charging – bq24150A
- Automatic High Impedance Mode – bq24151A
- Boost Mode Operation for USB OTG:
- Input Voltage Range (from Battery): 2.5 V to 4.5 V
- Output for VBUS: 5.05 V/ 200 mA
- 2 x 2 mm 20-Pin WCSP Package
- APPLICATIONS
- Mobile and Smart Phones
- MP3 Players
- Handheld Devices
The bq24150A/1A is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The bq24150A/1A integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.
The bq24150A/1A charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, bq24150A/1A automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I2C interface.
During the charging process, the bq24150A/1A monitors its junction temperature (TJ) and reduces the charge current once TJ increases to approximately 125°C. To support USB OTG device, bq24150A/1A provides VBUS (approximately 5.05 V) by boosting the battery voltage. The bq24150A/1A is available in 20-pin WCSP package.
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 | Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance an 数据表 (Rev. A) | 2010-1-19 | |||
| 应用手册 | Building your own Battery Simulator | 2013-10-14 |
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）。
BQ2415XSW-LINUX — 用于 BQ2415X 的 Linux 驱动程序
Linux 驱动程序支持 BQ2415x 系列完全集成的开关模式单节锂离子充电器。Linux 驱动程序支持通过 I2C 总线和接口与电源子系统进行通信。
Linux 主线状态
在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用
Linux 源文件
与该器件关联的文件为：
-
drivers/power/supply/bq2415x_charger.c
-
Documentation/devicetree/bindings/power/bq2415x.txt
-
include/linux/power/bq2415x_charger.h
源文件
BQ2415XEVM-SW — BQ2415x EVM Sowtware Setup
BQ2415x EVM 软件为 BQ24150/1 EVM 板提供软件接口。使用本软件通过 USB 接口适配器来更改 BQ24150/1 IC 寄存器。
下载：安装用于 BQ2415xEVM-SW 的软件
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 20 | Ultra Librarian |