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符合 Qi v1.2 标准的 bq5105xB 高效无线电源接收器和电池充电器
ZHCSAX2F
July 2012 – June 2017
PRODUCTION DATA.
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符合 Qi v1.2 标准的 bq5105xB 高效无线电源接收器和电池充电器
1
特性
2
应用
3
说明
4
修订历史记录
5
Device Options
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.1.1
A Brief Description of the Wireless System
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Using the bq5105x as a Wireless Li-Ion/Li-Pol Battery Charger (With Reference to )
8.3.2
Details of a Qi Wireless Power System and bq5105xB Power Transfer Flow Diagrams
8.3.3
Battery Charge Profile
8.3.4
Battery Charging Process
8.3.4.1
Precharge Mode (VBAT ≤ VLOWV)
8.3.4.2
Fast Charge Mode / Constant Voltage Mode
8.3.4.3
Battery Charge Current Setting Calculations
8.3.4.3.1
RILIM Calculations
8.3.4.3.2
Termination Calculations
8.3.4.4
Battery-Charger Safety and JEITA Guidelines
8.3.4.4.1
bq51050B and bq51051B JEITA
8.3.4.4.2
bq51052B Modified JEITA
8.3.4.5
Input Overvoltage
8.3.4.6
End Power Transfer Packet (WPC Header 0x02)
8.3.4.7
Status Output
8.3.4.8
Communication Modulator
8.3.4.9
Adaptive Communication Limit
8.3.4.10
Synchronous Rectification
8.3.4.11
Internal Temperature Sense (TS Function of the TS/CTRL Pin)
8.3.4.11.1
TS/CTRL Function
8.3.4.11.2
Thermal Protection
8.3.4.12
WPC v1.2 Compatibility
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
bq51050B Used as a Wireless Power Receiver and Li-Ion/Li-Pol Battery Charger
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Series and Parallel Resonant Capacitor Selection
9.2.1.2.2
COMM, CLAMP and BOOT Capacitors
9.2.1.2.3
Charging and Termination Current
9.2.1.2.4
Adapter Enable
9.2.1.2.5
Charge Indication and Power Capacitors
9.2.1.3
Application Curves
9.2.2
Application for Wired Charging
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.2.2.1
Blocking Back-Back FET
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
文档支持
12.1.1
相关文档
12.2
相关链接
12.3
接收文档更新通知
12.4
社区资源
12.5
商标
12.6
静电放电警告
12.7
Glossary
13
机械、封装和可订购信息
重要声明
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
RHL|20
YFP|28
散热焊盘机械数据 (封装 | 引脚)
RHL|20
QFND077N
订购信息
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