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bq25071 带有 50mA 低压降稳压器 (LDO) 的 1A、单输入、单节 LiFePO4 线性电池充电器
ZHCSCP0
July 2014
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bq25071 带有 50mA 低压降稳压器 (LDO) 的 1A、单输入、单节 LiFePO4 线性电池充电器
1
特性
2
应用范围
3
说明
4
应用电路原理图
5
修订历史记录
6
Device Comparison Table
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings
8.2
Handling Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Timing Requirements
8.7
Typical Characteristics
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Input Overvoltage Protection
9.3.2
Undervoltage Lockout (UVLO)
9.3.3
External NTC Monitoring (TS)
9.3.4
50 mA LDO (LDO)
9.3.5
Charge Status Indicator (CHG)
9.3.6
Input Current Limit Control (EN)
9.4
Device Functional Modes
9.4.1
Charging Operation
9.4.1.1
Charger Operation with Minimum System Voltage Mode Enabled
9.4.1.2
Precharge Mode (V(BAT) ≤ V(LOWV))
9.4.1.3
Fast Charge Mode
9.4.2
Programmable Input Current Limit (ISET)
9.4.3
Thermal Regulation and Thermal Shutdown
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Selection of Input and Output Capacitors
10.2.2.2
Thermal Considerations
10.2.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
器件和文档支持
13.1
Trademarks
13.2
Electrostatic Discharge Caution
13.3
术语表
14
机械封装和可订购信息
重要声明
封装选项
机械数据 (封装 | 引脚)
DQC|10
MPSS005A
散热焊盘机械数据 (封装 | 引脚)
订购信息
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