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BQ51221 Datasheet(PDF) 10 Page - Texas Instruments

Part # BQ51221
Description  BQ51013B Highly Integrated Wireless Receiver Qi (WPC v1.2) Compliant Power Supply
PDF  50 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

BQ51221 Datasheet(HTML) 10 Page - Texas Instruments

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7.6 Typical Characteristics
40
50
60
70
80
90
100
0
1
2
3
4
5
Power (W)
Input: RX AC power
Output: RX RECT power
Efficiency: Output Power / Input Power
Figure 7-1. Rectifier Efficiency
0
10
20
30
40
50
60
70
80
0
1
2
3
4
5
Power (W)
Input: TX DC power
Output: RX RECT power
Efficiency: Output Power / Input Power
Figure 7-2. System Efficiency From DC Input to DC
Output
0
10
20
30
40
50
60
70
80
0
1
2
3
4
5
Power (W)
RILIM = 250
Ω
RILIM = 500
Ω
Input: TX DC power
Output: RX RECT power
Plot: Output Power / Input Power
Figure 7-3. Light Load System Efficiency
Improvement Due to Dynamic Efficiency Scaling
Feature ( 1 )
5.0
5.5
6.0
6.5
7.0
7.5
0
200
400
600
800
1000
1200
Iout (mA)
VRECT_RISING
VRECT_FALLING
RILIM = 250 Ω
Figure 7-4. Impact of Load Current ( ILOAD) on
Rectifier Voltage (VRECT)
BQ51013B
SLUSB62D – MARCH 2013 – REVISED SEPTEMBER 2020
www.ti.com
10
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Copyright © 2020 Texas Instruments Incorporated
Product Folder Links: BQ51013B



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