參數(shù)資料
型號(hào): LX1745
廠商: Microsemi Corporation
元件分類: LED驅(qū)動(dòng)器
英文描述: Triple Output Boost ? LED Driver / LCD Bias
中文描述: 三路輸出升壓? LED驅(qū)動(dòng)器/ LCD偏置
文件頁(yè)數(shù): 11/16頁(yè)
文件大小: 439K
代理商: LX1745
LX1745
P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 11
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M
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Triple 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. 1.1a, 2004-02-06
EVALUATION BOARD
Table 2: Input and Output Pin Assignments
Input/Output
Range
Name
Description
VIN
GND
0 to 6V
0V
Main power supply for outputs.
Common ground reference.
Apply a DC voltage or a PWM voltage to this pin to adjust the LCD1
output voltage. PWM inputs should be greater than 120Hz.
Apply a DC voltage or a PWM voltage to this pin to adjust the LCD2
output voltage. PWM inputs should be greater than 120Hz.
Pulled up to VIN on board (10K
), Ground to inhibit the LED driver
output (VOUT).
Pulled up to VIN on board (10K
), Ground to inhibit the VLCD1.
Pulled up to VIN on board (10K
), Ground to inhibit the VLCD2.
Output voltage test point. Programmed for 18V output, adjustable up to
25V.
Output voltage mirror of VLCD1
Output voltage test point. Programmed for 22V output, adjustable up to
25V.
LED drive voltage probe point.
LED current sense feedback.
Apply a DC voltage or a PWM voltage to this pin to adjust the LED
current. PWM inputs should be greater than 120Hz with a DC portion
less than 350mV.
Buffered IC reference output.
ADJ1
ADJ2
0 to VIN-100mV
SHDN
SHDN1
SHDN2
0 to VIN
VLCD1
25V
-VLCD
-25V
VLCD2
25V
VOUT
FDBK
25V
0 to VIN
BRT
0 to 350mV
REF
1.19V Typ.
Note: All pins are referenced to ground.
A
P
P
L
I
C
A
T
I
O
N
S
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