BQ24074 USB 供能的锂离子电池充电器和电源路径管理 IC，10.5V OVP
BQ24074 描述
The bq2407x series of devices are integrated Li-ion linear chargers and system power path management devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter and support charge currents up to 1.5A. The input voltage range with input overvoltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq2407x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing incorrectly configured USB sources.
The bq2407x features dynamic power path management (DPPM) that powers the system while simultaneously and independently charging the battery
|
BQ24072 |
BQ24073 |
BQ24074 |
BQ24075 |
BQ24079 |
| # Series Cells |
1 |
1 |
1 |
1 |
1 |
| Charge Current(Max)(A) |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
| Charge Status Outputs |
2 |
2 |
2 |
2 |
2 |
| Control Topology |
Linear |
Linear |
Linear |
Linear |
Linear |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
Minimum Current |
| Pin/Package |
16QFN |
16QFN |
16QFN |
16QFN |
16QFN |
| Vin(Max)(V) |
28 |
28 |
28 |
28 |
28 |
| Battery Charge Voltage(V) |
4.2 |
4.2 |
4.2 |
4.2 |
4.1 |
| Optional Functions |
Vout=Vbat + 0.2V, OVP=6.6V |
Vout=4.4V, OVP=6.6V |
Vout=4.4V, OVP=10.5V |
Vout=5.5V, OVP=6.6V |
Vout=5.5V, OVP=6.6V |
BQ24074 特性
- Fully Compliant USB Charger
- Selectable 100mA and 500mA Maximum Input Current
- 100mA Maximum Current Limit Ensures Compliance to USB-IF Standard
- Input based Dynamic Power Management (VIN-DPM) for Protection Against Poor USB Sources
- 28V Input Rating with Overvoltage Protection
- Integrated Dynamic Power Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
- Supports up to 1.5A Charge Current with Current Monitoring Output (ISET)
- Programmable Input Current Limit up to 1.5A for Wall Adapters
- System Output Tracks Battery Voltage (bq24072)
- Programmable Termination Current (bq24074)
- Battery Disconnect Function with SYSOFF Input (BQ24075, BQ24079)
- Programmable Pre-Charge and Fast-Charge Safety Timers
- Reverse Current, Short-Circuit and Thermal Protection
- NTC Thermistor Input
- Proprietary Start Up Sequence Limits Inrush Current
- Status Indication – Charging/Done, Power Good
- Small 3 mm × 3 mm 16 Lead QFN Package
- APPLICATIONS
- Smart Phones
- Portable Media Players
BQ24074 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 |
| BQ24074RGTR |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
QFN (RGT) | 16 |
3000 | LARGE T&R |
ODI |
| BQ24074RGTT |
ACTIVE |
-40 to 85 |
1.85 | 1ku |
QFN (RGT) | 16 |
250 | SMALL T&R |
ODI |
BQ24074 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 |
| BQ24074RGTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24074RGTR |
BQ24074RGTR |
| BQ24074RGTT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24074RGTT |
BQ24074RGTT |
BQ24074 应用技术支持与电子电路设计开发资源下载
- BQ24074 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)
BQ24074 相关工具
