MP3001 Datasheet, PDF (4/9 Pages) Monolithic Power Systems – 1x, 1.5x, 2x Auto-Adjust Charge Pump White LED Backlight and Flashlight Driver

MP3001 – AUTO-ADJUST CHARGE PUMP WLED BACKLIGHT AND FLASH DRIVER
TYPICAL PERFORMACE CHARACTERISTICS
V_BATT = 4.2V, T_A = +25°C, unless otherwise noted.
Efficiency vs
Battery Voltage
100
I_LED=10mA
90
80
70
60
50 ^I_LED=20mA
I_LED=30mA
40
LED Current (HC) Over
32 Brightness Levels
35
30
25
20
15
10
30
5
20
2.5 3.0 3.5 4.0 4.5
BATTERY VOLTAGE (V)
0
0 5 10 15 20 25 30
BRIGHT LEVEL
LED Current (LC) Over
32 Brightness Levels
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 5 10 15 20 25 30
BRIGHT LEVEL
LED Current Deviation (HC) LED Current Deviation (LC)
vs Battery Voltage
vs Battery Voltage
1.00
60
0.50
0.00
-0.50
LED1
LED3
40
LED2
20
0
LED4
-20
LED1
LED2
LED3
-1.00
2.50
3.50
4.50
5.50
BATTERY VOLTAGE (V)
-40
2.50
LED4
3.50
4.50
5.50
BATTERY VOLTAGE (V)
MP3001 Rev. 0.91
www.MonolithicPower.com
4
9/21/2007
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