BQ25040 1.2A, Single-Input, Single Cell Li-Ion BATTERY CHARGER with 50mA LDO and 2.3A Te
BQ25040 描述
The bq25040 is an integrated Li-ion linear battery charger targeted at space-limited portable applications. It operates from either a USB port or AC adapter and charges a single cell Li-Ion battery with up to 1.1A of charge current.
The bq25040 has a single power output that charges the battery. A system load can be placed in parallel with the battery. The charge current is programmed using the ISET and EN/SET inputs. The input current limit is programmable to USB100, USB500 or a user programmed current limit up to 1.1A. Additionally, a 4.9V ±3% 50mA LDO is integrated into the IC for supplying low power external circuitry. The single-input interface (EN/SET) is used to select the charge current and to place the bq25040 into Production Test Mode.
|
BQ25040 |
| # Series Cells |
1 |
| Charge Current(Max)(A) |
1.1 |
| Charge Status Outputs |
1 |
| Control Topology |
Linear |
| Primary Charge Termination Method |
Minimum Current |
| Pin/Package |
10WSON |
| Vin(Max)(V) |
30 |
| Battery Charge Voltage(V) |
4.2 |
| Optional Functions |
Vovp=6.9V, Vldo=4.9V |
BQ25040 特性
- 30V Input Rating, with Overvoltage Protection (OVP)
- Input Voltage Dynamic Power Management Feature
- 50mA Integrated Low Dropout Linear Regulator (LDO)
- 1% Charge Voltage Regulation Accuracy
- 10% Charge Current Accuracy
- Single-Input Interface Selects USB 100mA, 500mA or User-Programmable Maximum Input Current Limit
- 4.2V at 2.3A Production Test Mode
- Thermal Regulation and Thermal Shutdown Protection for Output Current Control
- Soft-Start Feature to Reduce Inrush Current
- Status Indication - Power Good and Charging/Done
- Available in Small 2mm × 3mm DFN-10 Package
- APPLICATIONS
- Mobile Phones
- Smart Phones
- Portable Media Players
- Portable Navigation Devices
- Low-Power Handheld Devices
BQ25040 芯片订购指南
| 器件 |
状态 |
|
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ25040DQCR |
ACTIVE |
-40 to 125 |
1.20 | 1ku |
WSON (DQC) | 10 |
3000 | LARGE T&R |
BQ25040DQCR |
| BQ25040DQCT |
ACTIVE |
-40 to 125 |
1.40 | 1ku |
WSON (DQC) | 10 |
250 | SMALL T&R |
BQ25040DQCR |
BQ25040 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 |
| BQ25040DQCR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ25040DQCR |
BQ25040DQCR |
| BQ25040DQCT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ25040DQCT |
BQ25040DQCT |
BQ25040 应用技术支持与电子电路设计开发资源下载
- BQ25040 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)
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