BQ24202 用于限流应用的 500mA 4.2V 单片锂离子充电器， 具有充电状态，采用 MSOP-8 封装
BQ24202 描述
The bq2420x series are simple Li-Ion linear charge management devices targeted at low-cost and space limited charger applications. The bq2420x series offer integrated powerFET, high-accuracy voltage regulation, temperature monitoring, charge status, and charge termination, in a single monolithic device.
The bq2420x is designed to work with a current-limited wall-mount transformer and therefore does not provide any current regulation. However, these devices offer a fixed internal current limit to prevent damage to the internal powerFET. A time-limited pre-conditioning phase is provided to condition deeply discharged cells. Once the battery reaches the charge voltage, the high accuracy voltage regulation loop takes over and completes the charge cycle
|
BQ24200 |
BQ24201 |
BQ24202 |
BQ24203 |
BQ24204 |
BQ24205 |
| # Series Cells |
1 |
1 |
1 |
1 |
1 |
1 |
| Charge Current(Max)(A) |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
| Charge Status Outputs |
1 |
1 |
1 |
1 |
0 |
0 |
| Control Topology |
Current Limited |
Current Limited |
Current Limited |
Current Limited |
Current Limited |
Current Limited |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
| Pin/Package |
8MSOP-PowerPAD |
8MSOP-PowerPAD |
8MSOP-PowerPAD |
8MSOP-PowerPAD |
8MSOP-PowerPAD |
8MSOP-PowerPAD |
| Vin(Max)(V) |
16.5 |
16.5 |
16.5 |
16.5 |
16.5 |
16.5 |
| Battery Charge Voltage(V) |
4.2 |
4.1 |
4.2 |
4.1 |
4.2 |
4.1 |
| Optional Functions |
STAT and TS |
STAT and TS |
STAT |
STAT |
|
|
BQ24202 特性
- Designed Specifically to Work With Current-Limited Wall Supplies
- Ideal for Low Dropout Charger Design for Single-Cell Li-Ion Packs With Coke or Graphite Anodes
- Integrated PowerFET for 500 mA
- Integrated Voltage Regulation With 0.5% Accuracy
- Battery Insertion and Removal Detection
- Charge Termination by Minimum Current and Time
- Pre-Charge Conditioning With Safety Timer
- Sleep Mode for Low-Power Consumption
- Charge Status Output for LED or Host Processor Interface Indicates
- Charge-in-Progress, Charge Completion, and Fault Conditions
- Optional Temperature Monitoring Before and During Charge
- Small, 8-Pin Power-Pad MSOP Package
BQ24202 芯片订购指南
BQ24202 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 |
| BQ24202DGN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24202DGN |
BQ24202DGN |
| BQ24202DGNG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24202DGNG4 |
BQ24202DGNG4 |
| BQ24202DGNR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24202DGNR |
BQ24202DGNR |
| BQ24202DGNRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24202DGNRG4 |
BQ24202DGNRG4 |
BQ24202 应用技术支持与电子电路设计开发资源下载
- BQ24202 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)
- 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)
BQ24202 相关工具