ZHCSFC3A July 2016 – August 2016
PRODUCTION DATA.
- 1 特性
- 2 應用范圍
- 3 說明
- 4 修訂歷史記錄
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Dynamic Rectifier Control
- 8.3.2 Dynamic Power Scaling
- 8.3.3 VO_REG and VIREG Calculations
- 8.3.4 RILIM Calculations
- 8.3.5 Adapter Enable Functionality
- 8.3.6 Turning Off the Transmitter
- 8.3.7 CM_ILIM
- 8.3.8 PD_DET and TMEM
- 8.3.9 TS, Both WPC and PMA
- 8.3.10 I2C Communication
- 8.3.11 Input Overvoltage
- 8.4 Device Functional Modes
- 8.5
Register Maps
- 8.5.1 Wireless Power Supply Current Register 1 (address = 0x01) [reset = 00000001]
- 8.5.2 Wireless Power Supply Current Register 2 (address = 0x02) [reset = 00000111 ]
- 8.5.3 I2C Mailbox Register (address = 0xE0) [reset = 10000000 ]
- 8.5.4 Wireless Power Supply FOD RAM Register (address = 0xE1) [reset =00000000 ]
- 8.5.5 Wireless Power User Header RAM Register (address = 0xE2) [reset = 00000000]
- 8.5.6 Wireless Power USER VRECT Status RAM Register (address = 0xE3) [reset = 00000000]
- 8.5.7 Wireless Power VOUT Status RAM Register (address = 0xE4) [reset = 00000000]
- 8.5.8 Wireless Power REC PWR Byte Status RAM Register (address = 0xE8) [reset = 00000000]
- 8.5.9 Wireless Power Mode Indicator Register (address = 0xEF) [reset = 00000000]
- 8.5.10 Wireless Power Prop Packet Payload RAM Byte 0 Register (address = 0xF1) [reset = 00000000]
- 8.5.11 Wireless Power Prop Packet Payload RAM Byte 1 Register (address = 0xF2) [reset = 00000000]
- 8.5.12 Wireless Power Prop Packet Payload RAM Byte 2 Register (address = 0xF3) [reset = 00000000]
- 8.5.13 Wireless Power Prop Packet Payload RAM Byte 3 Register (address = 0xF4) [reset = 00000000]
- 8.5.14 RXID Readback Register (address = 0xF5 - 0xFA) [reset = see note]
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Applications
- 9.2.1
Dual Mode Design (WPC and PMA Compliant) Power Supply 5-V Output with 1-A Maximum Current
- 9.2.1.1 Design Requirements
- 9.2.1.2
Detailed Design Procedure
- 9.2.1.2.1 Output Voltage Set Point
- 9.2.1.2.2 Output and Rectifier Capacitors
- 9.2.1.2.3 Maximum Output Current Set Point
- 9.2.1.2.4 TERM Resistor
- 9.2.1.2.5 Setting LPRB1 and LPRB2 Resistors
- 9.2.1.2.6 I2C
- 9.2.1.2.7 Communication Current Limit
- 9.2.1.2.8 Receiver Coil
- 9.2.1.2.9 Series and Parallel Resonant Capacitors
- 9.2.1.2.10 Communication, Boot and Clamp Capacitors
- 9.2.1.3 Application Curves
- 9.2.2 Embedded in System Board
- 9.2.3 bq51222 Implemented in Back Cover
- 9.2.1
Dual Mode Design (WPC and PMA Compliant) Power Supply 5-V Output with 1-A Maximum Current
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
1 特性
2 應用范圍
- 智能手機、平板電腦和頭戴式耳機
- Wi-Fi 熱點
- 移動電源
- 其他手持式器件
3 說明
bq51222 器件是一款裝備齊全的無線電源接收器，此接收器能夠以無線充電聯盟 (WPC) Qi 和電源事物聯盟 (PMA) 協議運行，這使得無線電源系統滿足這兩種感應充電標準。bq51222 器件提供針對這兩種標準的單器件電源轉換（整流和穩壓）以及數字控制和通信。它還具有協議自主檢測功能，并且無需額外的有源器件。bq51222 器件符合 WPC v1.2 和 PMA 通信協議。與 WPC 或 PMA 一次側控制器搭配使用時，bq51222 器件可為無線電源解決方案實現一套完整的無線電源傳輸系統。此接收器可采用市場領先的封裝、效率和解決方案實現同步整流、穩壓和控制與通信。
器件信息(1)
| 器件型號 | 封裝 | 封裝尺寸（最大值） |
|---|---|---|
| bq51222 | DSBGA (42) | 3.586mm x 2.874mm |
- 要了解所有可用封裝，請參見數據表末尾的可訂購產品附錄。
空白
簡化原理圖
雙路模式效率（5V 輸出）
