參數(shù)資料
型號: MP1519
廠商: Monolithic Power Systems, Inc.
英文描述: 1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver
中文描述: 1倍,1.5倍,2倍高效充電泵4白光LED驅動器
文件頁數(shù): 3/8頁
文件大?。?/td> 216K
代理商: MP1519
MP1519 – 1X, 1.5X, 2X CHARGE PUMP 4 WHITE LED DRIVER
MP1519 Rev. 1.9
7/27/2006
www.MonolithicPower.com
3
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
TYPICAL PERFORMANCE CHARACTERISTICS
V
BATT
20mV/div.
V
LEDC
20mV/div.
400ns/div.
Voltage Ripple
in 1.5x Mode
4 x 10mA LEDs
V
EN
5V/div.
I
100mA/div.
Startup in 1.5x Mode
4 x 10mA LEDs
Analog Dimming
Circuit of Figure 3, V
BATT
= 3.6V
V
EN
5V/div.
I
100mA/div.
Startup in 1x Mode
4 x 10mA LEDs
16
14
12
10
8
6
4
2
0
L
0
1
2
3
DC VOLTAGE (V)
12
11
10
9
8
7
6
L
2.5
3.0
SUPPLY VOLTAGE (V)
3.5
4.0
4.5
LED Current Matching
LED1
LED2
LED3
LED4
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