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MP3021 데이터시트(PDF) 4 Page - Monolithic Power Systems

부품명 MP3021
상세설명  1x, 1.5x, 2x Auto-Adjust Charge Pump White LED Backlight Driver
PDF  10 Pages
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제조업체  MPS [Monolithic Power Systems]
홈페이지  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP3021 데이터시트(HTML) 4 Page - Monolithic Power Systems

  MP3021 Datasheet HTML 1Page - Monolithic Power Systems MP3021 Datasheet HTML 2Page - Monolithic Power Systems MP3021 Datasheet HTML 3Page - Monolithic Power Systems MP3021 Datasheet HTML 4Page - Monolithic Power Systems MP3021 Datasheet HTML 5Page - Monolithic Power Systems MP3021 Datasheet HTML 6Page - Monolithic Power Systems MP3021 Datasheet HTML 7Page - Monolithic Power Systems MP3021 Datasheet HTML 8Page - Monolithic Power Systems MP3021 Datasheet HTML 9Page - Monolithic Power Systems Next Button
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MP3021 – 1X, 1.5X, 2X AUTO-ADJUST CHARGE PUMP WLED BACKLIGHT DRIVER
MP3021 Rev. 1.0
www.MonolithicPower.com
4
11/21/2007
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VBATT = 4.2V, TA = +25°C, unless otherwise noted.
100
90
80
70
60
50
40
30
20
2.5
3.0
3.5
4.0
4.5
BATTERY VOLTAGE (V)
Efficiency vs
Battery Voltage
I_LED=30mA
I_LED=20mA
I_LED=10mA
2.50
3.50
4.50
5.50
60
40
20
0
-20
-40
LED Current Deviation (LC)
vs Battery Voltage
1.00
0.50
0.00
-0.50
-1.00
2.50
3.50
4.50
5.50
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
LED Current Deviation (HC)
vs Battery Voltage
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
BRIGHT LEVEL
LED Current (LC) Over
32 Brightness Levels
35
30
25
20
15
10
5
0
0
5
10
15
20
25
30
BRIGHT LEVEL
LED Current (HC) Over
32 Brightness Levels
0
5
10
15
20
25
30
LED3
LED3
LED1
LED4
LED2
LED2
LED1
LED4
100
90
80
70
60
50
40
30
20
10
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5
BATTERY VOLTAGE (V)
Efficiency with Different
LED Voltage
VF=3.4V
VF=3.3V
VF=3.2V
I_LED=20mA



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