參數(shù)資料
型號(hào): LX1744
廠商: Microsemi Corporation
元件分類: LED驅(qū)動(dòng)器
英文描述: Dual Output Boost ? LED Driver / LCD Bias
中文描述: 雙輸出升壓? LED驅(qū)動(dòng)器/ LCD偏置
文件頁數(shù): 6/16頁
文件大小: 571K
代理商: LX1744
LX1744
P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
W
M
.
C
Dual Output Boost – LED Driver / LCD Bias
I N T E G R A T E D P R O D U C T S
Copyright
2000
Rev. 1.1b, 2005-03-01
A P P L I C A T I O N C I R C U I T S
C
1
4.7μ
F
L
1
47
μ
H
1206 Case Size
LX1744
GND
LFB
CS
DRV
IN
SRC
R
SET
15
V
BAT
= 1.6V to 6.0V
I
LED
= 20mA to 0mA
OVP
ADJ
SW
SHDN
ON OFF
V
LCD
= V
IN
to 25V
FB
- V
LCD
BRT
LSHDN
ON OFF
REF
Figure 1
– LED Driver with Full-Range Dimming plus LCD Bias With Contrast Adjustment Via PWM Input
C
1
4.7μ
F
L
1
47
μ
H
1206 Case Size
LX1744
GND
LFB
CS
DRV
IN
SRC
SET
15
V
BAT
= 1.6V to 6.0V
I
LED
= 20mA to 0mA
OVP
ADJ
SW
SHDN
ON OFF
V
LCD
= V
IN
to 25V
FB
- V
LCD
BRT
LSHDN
ON OFF
REF
Figure 2
– LED Driver with Full-Range Dimming plus LCD Bias With Contrast Adjustment Via Analog Voltage Input
Note: The component values shown are only examples for a working system. Actual values will vary greatly depending on desired parameters, efficiency, and
layout constraints.
A
P
P
L
I
C
A
T
I
O
N
S
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