BQ24125 具有增强的 EMI 性能的单芯片开关模式、锂离子和锂聚合物充电管理 IC
BQ24125 描述
The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.
The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold
|
BQ24120 |
BQ24123 |
BQ24125 |
| # Series Cells |
1 |
1, 2 |
1, 2, 3 |
| Charge Current(Max)(A) |
2 |
2 |
2 |
| Charge Status Outputs |
2 |
2 |
2 |
| Control Topology |
Switchmode |
Switchmode |
Switchmode |
| Switching Frequency(kHz) |
1100 |
1100 |
1100 |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
Minimum Current |
| Pin/Package |
20QFN |
20QFN |
20QFN |
| Vin(Max)(V) |
20 |
20 |
20 |
BQ24125 特性
- Enhanced EMI Performance
- Integrated Power FETs For Up To 2-A Charge Rate
- Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer Battery Packs
- Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
- High-Accuracy Voltage and Current Regulation
- Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
- 20-V Absolute Maximum Voltage Rating on IN and OUT Pins
- Accurate High-Side Battery Current Sensing
- Battery Temperature Monitoring
- Automatic Sleep Mode for Low Power Consumption
- Reverse Leakage Protection Prevents Battery Drainage
- Thermal Shutdown and Protection
- Built-In Battery Detection
- Available in 20 pin 3,5 mm x 4,5 mm QFN Package
- APPLICATIONS
- Handheld Products
- Portable Media Players
- Industrial and Medical Equipment
- Portable Equipment
- Portable DVD Players
BQ24125 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ24125RHLR |
ACTIVE |
-40 to 125 |
3.50 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
|
| BQ24125RHLRG4 |
ACTIVE |
-40 to 125 |
3.50 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
|
| BQ24125RHLT |
ACTIVE |
-40 to 125 |
4.05 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
|
| BQ24125RHLTG4 |
ACTIVE |
-40 to 125 |
4.05 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
|
BQ24125 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 |
| BQ24125RHLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24125RHLR |
BQ24125RHLR |
| BQ24125RHLRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24125RHLRG4 |
BQ24125RHLRG4 |
| BQ24125RHLT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24125RHLT |
BQ24125RHLT |
| BQ24125RHLTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24125RHLTG4 |
BQ24125RHLTG4 |
BQ24125 应用技术支持与电子电路设计开发资源下载
- BQ24125 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)
- QFN Layout Guidelines (PDF 1279 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)
- PowerPAD™ 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)
BQ24125 相关工具
