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| 型号： | BQ51013ARHLR |
| 厂商： | Texas Instruments |
| 文件页数： | 18/45页 |
| 文件大小： | 0K |
| 描述： | IC WIRELESS PWR RCVR 20QFN |
| 标准包装： | 1 |
| 应用： | 无线电源接收器 |
| 电流 - 电源： | 1.5A |
| 电源电压： | 4 V ~ 10 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN-EP（4.50x3.50） |
| 包装： | 标准包装 |
| 其它名称： | 296-30568-6 |
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bq51014 is Not Recommended For New Designs
SLUSAY6B – MARCH 2012 – REVISED OCTOBER 2013
Using the bq5101x as a Wireless Power Supply: (See Figure 3 )
Figure 3 is the schematic of a system which uses the bq5101x as power supply while power multiplexing the
wired (adapter) port.
When the system shown in Figure 3 is placed on the charging pad, the receiver coil is inductively coupled to the
magnetic flux generated by the coil in the charging pad which consequently induces a voltage in the receiver coil.
The internal synchronous rectifier feeds this voltage to the RECT pin which has the filter capacitor C3.
The bq5101x identifies and authenticates itself to the primary using the COM pins by switching on and off the
COM FETs and hence switching in and out C COMM . If the authentication is successful, the transmitter will remain
powered on. The bq5101x measures the voltage at the RECT pin, calculates the difference between the actual
voltage and the desired voltage V RECT-REG , (threshold 1 at no load) and sends back error packets to the primary.
This process goes on until the input voltage settles at V RECT-REG . During a load transient, the dynamic rectifier
algorithm will set the targets specified by V RECT-REG thresholds 1, 2, 3, and 4. This algorithm is termed Dynamic
Rectifier Control and is used to enhance the transient response of the power supply.
During power-up, the LDO is held off until the V RECT-REG threshold 1 converges. The voltage control loop ensures
that the output voltage is maintained at V OUT-REG to power the system. The bq5101x meanwhile continues to
monitor the input voltage, and maintains sending error packets to the primary every 250ms. If a large transient
occurs, the feedback to the primary speeds up to every 32ms in order to converge on an operating point in less
time.
Details of a Qi Wireless Power System and bq5101x Power Transfer Flow Diagrams
The bq5101x family integrates a fully compliant WPC v1.0 communication algorithm in order to streamline
receiver designs (no extra software development required). Other unique algorithms such has Dynamic Rectifier
Control are also integrated to provide best in class system performance. This section provides a high level
overview of these features by illustrating the wireless power transfer flow diagram from startup to active
operation.
During startup operation, the wireless power receiver must comply with proper handshaking to be granted a
power contract from the Tx. The Tx will initiate the hand shake by providing an extended digital ping. If an Rx is
present on the Tx surface, the Rx will then provide the signal strength, configuration and identification packets to
the Tx (see volume 1 of the WPC specification for details on each packet). These are the first three packets sent
to the Tx. The only exception is if there is a true shutdown condition on the EN1/EN2, AD, or TS-CTRL pins
where the Rx will shut down the Tx immediately. See Table 4 for details. Once the Tx has successfully received
the signal strength, configuration and identification packets, the Rx will be granted a power contract and is then
allowed to control the operating point of the power transfer. With the use of the bq5101x Dynamic Rectifier
Control algorithm, the Rx will inform the Tx to adjust the rectifier voltage above 7 V prior to enabling the output
supply. This method enhances the transient performance during system startup. See Figure 29 for the startup
flow diagram details.
18
Product Folder Links: bq51013A bq51014
Copyright ? 2012–2013, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BQ51013ARHLT | 功能描述:其他电源管理 Qi Int Wireless Pwr Receiver Solution RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| BQ51013AYFPR | 功能描述:电池管理 Qi Int Wireless Pwr Receiver Solution RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ51013AYFPT | 功能描述:电池管理 Qi Int Wireless Pwr Receiver Solution RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| BQ51013B | 制造商:TI 制造商全称:Texas Instruments 功能描述:Highly Integrated Wireless Receiver Qi (WPC V1.1) Compliant Power Supply |
| BQ51013BEVM-764 | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:CPU |
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