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| 型号： | BQ51013ARHLR |
| 厂商： | Texas Instruments |
| 文件页数： | 21/45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
true, the output current must be between I TERM-HI and I TERM-LO for approximately 180s. Once this condition is true,
the Rx will send charge status of 100% to the Tx. The Tx can then illustrate that the mobile device has been fully
charged (100% charged). If the output current remains below I TERM-LO for ~7s then the charge status of 100% is
immediately sent. This condition can occur if the mobile device is put into a low standby mode after the battery is
fully charged. See Figure 31 for the flow diagram of the “TERM STATE”.
TERM STATE
(bq51014 only)
IOUT < 45mA?
Yes
t TERM-LO Expired?
Yes
Send charge status100%
and reset t TERM-LO timer
No
No
IOUT < I TERM-HI ?
Yes
t TERM-HI Expired?
Yes
Send charge status100%
and reset t TERM-HI timer
No
No
Rx Active
Power Transfer
Stage
Figure 31. TERM STATE Flow Diagram for the bq51014 Only
Dynamic Rectifier Control
The Dynamic Rectifier Control algorithm offers the end system designer optimal transient response for a given
max output current setting. This is achieved by providing enough voltage headroom across the internal regulator
at light loads in order to maintain regulation during a load transient. The WPC system has a relatively slow global
feedback loop where it can take up to 90 ms to converge on a new rectifier voltage target. Therefore, a transient
response is dependent on the loosely coupled transformers output impedance profile. The Dynamic Rectifier
Control allows for a 2 V change in rectified voltage before the transient response will be observed at the output of
the internal regulator (output of the bq5101x). A 1-A application allows up to a 2 Ω output impedance. The
Dynamic Rectifier Control behavior is illustrated in Figure 7 where R ILIM is set to 220 Ω .
Dynamic Efficiency Scaling
The Dynamic Efficiency Scaling feature allows for the loss characteristics of the bq5101x to be scaled based on
the maximum expected output power in the end application. This effectively optimizes the efficiency for each
application. This feature is achieved by scaling the loss of the internal LDO based on a percentage of the
maximum output current. Note that the maximum output current is set by the K IMAX term and the R ILIM resistance
(where R ILIM = K IMAX / I MAX ). The flow diagram show in Figure 30 illustrates how the rectifier is dynamically
controlled ( Dynamic Rectifier Control ) based on a fixed percentage of the I MAX setting. The below table
summarizes how the rectifier behavior is dynamically adjusted based on two different R ILIM settings.
Table 1.
Output Current Percentage
0 to 10%
10 to 20%
20 to 40%
>40%
R ILIM = 500 Ω
I MAX = 0.5A
0 A to 0.05 A
0.05 A to 0.1A
0.1 A to 0.2 A
> 0.2 A
R ILIM = 220 Ω
I MAX = 1.14 A
0 A to 0.114 A
0.114 A to 0.227 A
0.227 A to 0.454 A
> 0.454 A
V RECT
7.08 V
6.28 V
5.53 V
5.11 V
Copyright ? 2012–2013, Texas Instruments Incorporated
Product Folder Links: bq51013A bq51014
21
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| 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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