BQ24650 适用于太阳能的高效同步开关模式充电器控制器
BQ24650 描述
The bq24650 is a highly integrated switch-mode battery charge controller. It provides input voltage regulation, which reduces charge current when input voltage falls below a programmed level. When the input is powered by a solar panel, the input regulation loop lowers the charge current so that the solar panel can provide maximum power output.
The bq24650 offers a constant-frequency synchronous PWM controller with high accuracy current and voltage regulation, charge preconditioning, charge termination, and charge status monitoring.
The bq24650 charges the battery in three phases: pre-conditioning, constant current, and constant voltage. Charge is terminated when the current reaches 1/10 of the fast charge rate
|
BQ24650 |
| Charge Current(Max)(A) |
10 |
| Switching Frequency(kHz) |
600 |
| Primary Charge Termination Method |
Minimum Current |
| Pin/Package |
16VQFN |
| Vin(Max)(V) |
28 |
| Battery Charge Voltage(V) |
Stand-alone |
| Optional Functions |
Programmable MPPT Setting |
BQ24650 特性
- Maximum Power Point Tracking (MPPT) Capability by Input Voltage Regulation
- Programmable MPPT Setting
- 5V-28V Input Solar Panel
- 600kHz NMOS-NMOS Synchronous Buck Controller
- Resistor Programmable Float Voltage
- Accommodates Li-Ion/Polymer, LiFePO4, Lead Acid Chemistries
- Accuracy
- ±0.5% Charge Voltage Regulation
- ±3% Charge Current Regulation
- ±0.6% Input Voltage Regulation
- High Integration
- Internal Loop Compensation
- Internal Digital Soft Start
- Safety
- Input Over-Voltage Protection
- Battery Temperature Sensing
- Battery Absent Detection
- Thermal Shutdown
- Charge Status Outputs for LED or Host Processor
- Charge Enable on MPPSET Pin
BQ24650 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ24650RVAR |
ACTIVE |
-40 to 85 |
2.85 | 1ku |
VQFN (RGV) | 16 |
3000 | LARGE T&R |
PAS |
| BQ24650RVAT |
ACTIVE |
-40 to 85 |
3.30 | 1ku |
VQFN (RGV) | 16 |
250 | SMALL T&R |
PAS |
BQ24650 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| BQ24650RVAR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-250C-1 YEAR |
BQ24650RVAR |
BQ24650RVAR |
| BQ24650RVAT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-250C-1 YEAR |
BQ24650RVAT |
BQ24650RVAT |
BQ24650 应用技术支持与电子电路设计开发资源下载
- BQ24650 数据资料 dataSheet 下载.PDF
- TI 德州仪器电池管理产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPADTM Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
BQ24650 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| BQ24650 评估模块 |
BQ24650EVM |
Texas Instruments |
开发电路板/EVM |
| BQ24650 评估模块 |
BQ24650EVM-337 |
Texas Instruments |
开发电路板/EVM |
| BQ24650 Evaluation Module Synchronous, Switch-Mode, Battery Charge Controller for Solar Power |
BQ24650EVM-639 |
Texas Instruments |
开发电路板/EVM |