BQ24070 单片充电和系统电源路径管理 IC
BQ24070 描述
The bq24070 and bq24071 are highly integrated Li-ion linear charger and system power-path management devices targeted at space-limited portable applications. The bq24070/1 offer DC supply (AC adapter) power-path management with autonomous power-source selection, power FETs and current sensors, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device.
The bq24070/1 power the system while independently charging the battery. This feature reduces the charge and discharge cycles on the battery, allows for proper charge termination and allows the system to run with an absent or defective battery pack. This feature also allows for the system to instantaneously turn on from an external power source in the case of a deeply discharged battery pack
|
BQ24070 |
BQ24071 |
| # Series Cells |
1 |
1 |
| Charge Current(Max)(A) |
1.5 |
1.5 |
| Charge Status Outputs |
2 |
2 |
| Control Topology |
Linear |
Linear |
| Primary Charge Termination Method |
Minimum Current |
Minimum Current |
| Pin/Package |
20QFN |
20QFN |
BQ24070 特性
- Small 3,5 mm × 4,5 mm QFN Package
- Designed for Single-Cell Li-Ion- or Li-Polymer-Based Portable Applications
- Integrated Dynamic Power-Path Management (DPPM) Feature Allowing the AC Adapter to Simultaneously Power the System and Charge the Battery
- Power Supplement Mode Allows Battery to Supplement the AC Input Current
- Autonomous Power Source Selection (AC Adapter or BAT)
- Supports Up to 2 Amps Total Current
- Thermal Regulation for Charge Control
- Charge Status Outputs for LED or System Interface Indicates Charge and Fault Conditions
- Reverse Current, Short-Circuit, and Thermal Protection
- Power Good Status Outputs
- 4.4-V and 6-V Options for System Output Regulation Voltage
- APPLICATIONS
- Smart Phones and PDA
- MP3 Players
- Digital Cameras and Handheld Devices
- Internet Appliances
BQ24070 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 |
| BQ24070RHLR |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
BTR |
| BQ24070RHLRG4 |
ACTIVE |
-40 to 85 |
1.60 | 1ku |
QFN (RHL) | 20 |
3000 | LARGE T&R |
BTR |
| BQ24070RHLT |
ACTIVE |
-40 to 85 |
1.85 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
BTR |
| BQ24070RHLTG4 |
ACTIVE |
-40 to 85 |
1.85 | 1ku |
QFN (RHL) | 20 |
250 | SMALL T&R |
BTR |
BQ24070 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 |
| BQ24070RHLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24070RHLR |
BQ24070RHLR |
| BQ24070RHLRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24070RHLRG4 |
BQ24070RHLRG4 |
| BQ24070RHLT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24070RHLT |
BQ24070RHLT |
| BQ24070RHLTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24070RHLTG4 |
BQ24070RHLTG4 |
BQ24070 应用技术支持与电子电路设计开发资源下载
- BQ24070 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)
BQ24070 相关工具