BQ24232 具有动态电源管理、10.5V OVP 的 USB 供能 0.5A 锂离子充电器
BQ24232 描述
The bq2423x series of devices are highly 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 between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.
The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery
|
BQ24230 |
BQ24232 |
| # Series Cells |
1 |
1 |
| Charge Current(Max)(A) |
0.5 |
0.5 |
| Charge Status Outputs |
2 |
2 |
| Control Topology |
Linear |
Linear |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
| Pin/Package |
16QFN |
16QFN |
| Optional Functions |
Vout=4.4V ,OVP=6.6V |
Vout=4.4V ,OVP=10.5V |
BQ24232 特性
- Fully Compliant USB Charger
- Selectable 100-mA and 500-mA Maximum Input Current
- 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
- Input-based Dynamic Power Management (VIN-DPM) for Protection Against Poor USB Sources
- 28-V 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 500-mA Charge Current With Current Monitoring Output (ISET)
- Programmable Input Current Limit up to 500 mA for Wall Adapters
- Programmable Termination Current (bq24232)
- Programmable Precharge 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
- Bluetooth Devices
- Low-Power Handheld Devices
BQ24232 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ24232RGTR |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
QFN (RGT) | 16 |
3000 | LARGE T&R |
NXK |
| BQ24232RGTRG4 |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
QFN (RGT) | 16 |
3000 | LARGE T&R |
NXK |
| BQ24232RGTT |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
QFN (RGT) | 16 |
250 | SMALL T&R |
NXK |
| BQ24232RGTTG4 |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
QFN (RGT) | 16 |
250 | SMALL T&R |
NXK |
BQ24232 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 |
| BQ24232RGTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24232RGTR |
BQ24232RGTR |
| BQ24232RGTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24232RGTRG4 |
BQ24232RGTRG4 |
| BQ24232RGTT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24232RGTT |
BQ24232RGTT |
| BQ24232RGTTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24232RGTTG4 |
BQ24232RGTTG4 |
BQ24232 应用技术支持与电子电路设计开发资源下载
- BQ24232 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)
BQ24232 相关工具
