MP1519DQ データシートの表示（PDF） - Monolithic Power Systems
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MP1519DQ Datasheet PDF : 8 Pages
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TM
MP1519 – 1X, 1.5X, 2X CHARGE PUMP 4 WHITE LED DRIVER
TYPICAL PERFORMANCE CHARACTERISTICS
Voltage Ripple
in 1.5x Mode
4 x 10mA LEDs
VBATT
20mV/div.
VLEDC
20mV/div.
400ns/div.
Startup in 1.5x Mode
4 x 10mA LEDs
VEN
5V/div.
Startup in 1x Mode
4 x 10mA LEDs
VEN
5V/div.
IBATT
100mA/div.
IBATT
100mA/div.
Analog Dimming
Circuit of Figure 3, VBATT = 3.6V
16
14
12
10
8
6
4
2
0
0
1
2
3
DC VOLTAGE (V)
LED Current Matching
12
LED4
LED3
11
10
9
LED2
LED1
8
7
6
2.5 3.0 3.5 4.0 4.5
SUPPLY VOLTAGE (V)
MP1519 Rev. 1.9
www.MonolithicPower.com
3
7/27/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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