BQ24380 过压/过流保护 IC 和锂离子充电器前端保护 IC，具有 LDO 模式、10.5 OVP
BQ24380 描述
The bq2438x family are charger front-end integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.5-V (bq24380) or 5-V (BQ24380, BQ24380) output with input voltages up to the Input overvoltage threshold. During input overvoltage conditions, the IC immediately turns off the internal pass FET disconnecting the charging circuitry from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system. The IC checks for short-circuit or overload conditions at its output when turning the pass FET on, and if it finds unsafe conditions, it switches off, and then rechecks the conditions.
|
BQ24380 |
BQ24381 |
BQ24382 |
| Input Voltage(Max)(V) |
30 |
30 |
30 |
| Input Over-Voltage Protection(V) |
6.3 |
7.1 |
10.5 |
| Battery Over-Voltage Protection(Max)(V) |
5.7 |
5.2 |
5 |
| Battery Over-Voltage Protection(Typ)(V) |
5.5 |
5 |
5 |
| Optional Functions |
Fault Indication |
Fault Indication |
Fault Indication |
BQ24380 特性
- Input Overvoltage Protection
- Accurate Battery Overvoltage Protection
- Output Short-Circuit Protection
- Soft-Start to Prevent Inrush Currents
- Soft-Stop to Prevent Voltage Spikes
- 30-V Maximum Input Voltage
- Supports up to 1.7-A Load Current
- Thermal Shutdown
- Enable Function
- Fault Status Indication
- Small 2 mm × 2 mm 8-Pin SON Package
- APPLICATIONS
- Smart Phones, Mobile Phones
- PDAs
- MP3 Players
- Low-Power Handheld Devices
BQ24380 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 |
| BQ24380DSGR |
ACTIVE |
-40 to 125 |
0.55 | 1ku |
WSON (DSG) | 8 |
3000 | LARGE T&R |
|
| BQ24380DSGT |
ACTIVE |
-40 to 125 |
0.65 | 1ku |
WSON (DSG) | 8 |
250 | SMALL T&R |
|
BQ24380 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 |
| BQ24380DSGR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24380DSGR |
BQ24380DSGR |
| BQ24380DSGT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24380DSGT |
BQ24380DSGT |
BQ24380 应用技术支持与电子电路设计开发资源下载
- BQ24380 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)
BQ24380 相关工具