BQ24901 采用 TSSOP-14 封装的单节锂离子/锂聚合物充电器，用于脱机应用领域（初级侧控制）
|
BQ24901 |
| # Series Cells |
1 |
| Charge Current(Max)(A) |
>2 |
| Charge Status Outputs |
2 |
| Control Topology |
Switchmode |
| Primary Charge Termination Method |
Minimum Current |
| Pin/Package |
14TSSOP |
| Vin(Max)(V) |
11.5 |
| Battery Charge Voltage(V) |
4.2 |
BQ24901 描述
The bq24901 Li-Ion charge management devices are designed specifically for off-line charger applications. The bq24901 resides on the secondary-side of the transformer and provides the control feedback to a variety of primary side controllers. The bq24901 offers current or voltage regulation feedback, temperature monitoring, charge status, and adjustable charge termination, in a single monolithic device. During battery-absent or charge-complete conditions, the bq24901 continuously regulates the secondary-side voltage, used as VCC supply to the device.
The bq24901 features a time-limited preconditioning phase to condition deeply discharged cells. The pre-conditioning phase is achieved by linear regulation in the secondary side
BQ24901 特性
- Designed for Off-Line Charger Design for Single-Cell Li-Ion Packs
- Provides Control Feedback to a Primary-Side Controller
- Robust Battery Insertion and Removal Detection
- Charge Current and Voltage Regulation Feedback to Primary-Side for High-Accuracy Charging
- Charge Termination by Minimum Current and Time
- Pre-Charge Conditioning Regulator with Safety Timer
- Charge Status Outputs for LED or Host Processor Interface Indicates Charge-in-Progress, Charge Completion, and Fault Conditions
- Temperature Monitoring Before and During Charge
- Short-Circuit Protection
- Small, 14-Pin TSSOP Package
- APPLICATIONS
- Cradle Chargers for Digital Cameras
- Desktop Chargers
- Handheld Devices
BQ24901 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 |
| BQ24901PW |
ACTIVE |
-40 to 125 |
2.55 | 1ku |
TSSOP (PW) | 14 |
90 | TUBE |
|
| BQ24901PWG4 |
ACTIVE |
-40 to 125 |
2.55 | 1ku |
TSSOP (PW) | 14 |
90 | TUBE |
|
| BQ24901PWR |
ACTIVE |
-40 to 125 |
2.10 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
|
| BQ24901PWRG4 |
ACTIVE |
-40 to 125 |
2.10 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
|
BQ24901 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 |
| BQ24901PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24901PW |
BQ24901PW |
| BQ24901PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24901PWG4 |
BQ24901PWG4 |
| BQ24901PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24901PWR |
BQ24901PWR |
| BQ24901PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ24901PWRG4 |
BQ24901PWRG4 |
BQ24901 应用技术支持与电子电路设计开发资源下载
- BQ24901 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
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- 高速数据转换 (PDF 1967 KB)
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