BQ24020 bqTINY-II 单片 1 节锂离子充电器，具有 USB/AC 电源管理、采用 3x3mm2 QFN 封装并具有使能端和温度传感器
BQ24020 描述
The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.
The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.
The bqTINY-II charges the battery in three phases: conditioning, constant current, and constant voltage
|
BQ24020 |
BQ24022 |
BQ24023 |
BQ24024 |
BQ24025 |
BQ24026 |
BQ24027 |
| # Series Cells |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Charge Current(Max)(A) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Charge Status Outputs |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| Control Topology |
Linear |
Linear |
Linear |
Linear |
Linear |
Linear |
Linear |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
| Pin/Package |
10SON |
10SON |
10SON |
10SON |
10SON |
10SON |
10SON |
| Vin(Max)(V) |
7 |
7 |
7 |
7 |
7 |
7 |
|
| Battery Charge Voltage(V) |
4.2 |
4.2 |
4.2 |
4.2 |
4.2 |
4.2 |
|
| Optional Functions |
CE and TS |
PG and CE |
CE and TTE |
TTE and TS |
CE and TS |
TE and TS |
BQ24020 特性
- Small 3 mm × 3 mm MLP Package
- Charges and powers Systems from Either AC Adapter or USB With Autonomous power-Source Selection
- Integrated USB Control With Selectable 100 mA and 500 mA Charge Rates
- Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applications
- Integrated power FET and Current Sensor for Up to 1-A Charge applications From AC Adapter
- Precharge Conditioning With Safety Timer
- power Good (AC Adapter Present) Status Output
- Optional Battery Temperature Monitoring Before and During Charge
- Automatic Sleep Mode for Low-power Consumption
- APPLICATIONS
- PDAs, MP3 Players
- Digital Cameras
- Internet appliances
- Smartphones
BQ24020 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 |
| BQ24020DRCR |
ACTIVE |
-40 to 85 |
0.99 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
|
| BQ24020DRCRG4 |
ACTIVE |
-40 to 85 |
0.99 | 1ku |
SON (DRC) | 10 |
3000 | LARGE T&R |
|
| BQ24020DRCT |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
|
| BQ24020DRCTG4 |
ACTIVE |
-40 to 85 |
1.15 | 1ku |
SON (DRC) | 10 |
250 | SMALL T&R |
|
BQ24020 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 |
| BQ24020DRCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24020DRCR |
BQ24020DRCR |
| BQ24020DRCRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24020DRCRG4 |
BQ24020DRCRG4 |
| BQ24020DRCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24020DRCT |
BQ24020DRCT |
| BQ24020DRCTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24020DRCTG4 |
BQ24020DRCTG4 |
BQ24020 应用技术支持与电子电路设计开发资源下载
- BQ24020 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)
BQ24020 相关工具