參數(shù)資料
型號: LX1741CDUT
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: 0.145 A SWITCHING CONTROLLER, PDSO8
封裝: PLASTIC, MSOP-8
文件頁數(shù): 11/15頁
文件大?。?/td> 459K
代理商: LX1741CDUT
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright
2000
Rev. 1.1, 2002-11-21
WWW
.Microse
m
i
.CO
M
LX1741
High Efficiency High Voltage Boost Controller
PRODUCTION DATA SHEET
I N T E GR A T ED
PRO DUC T S
APPLICATION CIRCUITS (C O N T I N U ED )
Typical LCD Bias Applications (Cont)
V
BAT = (1.6V to 6.0V)
+
=
2
1
ADJ
OUT
R
1
V
R
1
R
2
C
1
4.7
F
C
2
*
1nF
R
CS
1k
L
1
* Optional Component
used to reduce output
voltage ripple.
47
H
V
ADJ = 0.9V to 1.5V
+
-
LX1741
NDRV
SHDN
IN
SRC
GND
FB
CS
ADJ
Figure 3
– Dynamic Output Voltage Operation Via Analog Voltage Input
LED Driver Application
C
1
4.7
F
R
CS
1k
L
1
47
H
1206 Case Size
R
3
63.4
V
BAT = 1.6V to 6.0V
ON OFF
R
1
R
2
59k
V
F = 3.6V typ.
I
LED = 20mA to 0.25mA
()
+
=
2
1
2
F
ADJ
3
LED
R
V
4
V
R
1
I
LX1741
NDRV
SHDN
IN
SRC
GND
FB
CS
ADJ
Figure 4
– LED Driver with Full-Range Dimming Via PWM 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.
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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