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參數(shù)資料
| 型號(hào)： | LX1744CLQ |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Dual Output Boost ? LED Driver / LCD Bias |
| 中文描述： | LED DISPLAY DRIVER, QCC16 |
| 封裝： | PLASTIC, MLP-16 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 571K |
| 代理商： | LX1744CLQ |
LX1744
P
RODUCTION
D
ATASHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 12
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
E V A L U A T I O N B O A R D
Table 3: Jumper Position Assignments
Jumper
Position
Function
J1
J2
N/A
N/A
Close to adjust LED current with on-board potentiometer.
Close to adjust VLCD with on-board potentiometer.
Remove the factory installed jumper and insert a 4~6cm wire loop
(optional) to observe the inductor current waveform using a current
probe.
Remove jumper to test open-circuit over-voltage protection implemented
with R1 and R2
J3
N/A
J4
N/A
Note: All pins are referenced to ground.
Table 4: Factory Installed Component List
Part Description
CAPACITOR, 4.7
μ
F, 1210, 6.3V
CAPACITOR, 4.7
μ
F, 1210, 35V
CAPACITOR, 1000pF, 0805, 35V
CAPACITOR, (SPARE), See Note 1
CAPACITOR, 1
μ
F, 0805, 35V
CAPACITOR, 0.1
μ
F, 0805, 6.3V
CAPACITOR, 2.2
μ
F, 0805, 16V
Ref
C1
C2, C7
C3, C4
C5, C6
C8, C9
C10, C12
C11
CR1, CR2,
CR3, CR4
LED1, LED2,
LED3, LED4
L1, L2
Q1
R1, R3
R2, R6
R4
R5
R7, R8
R9, R10
R11, R12, R13
RESISTOR, 10K, 1/16W, 0805
U1
Microsemi LX1744CPW BOOST CONTROLLER
Microsemi UPS5819, SCHOTTKY, 1A, 40V, POWERMITE
Microsemi UPWLEDxx, LED, Optomite
INDUCTOR, 47
μ
H, 480mA, SMT
FDV303N MOSFET, 30V, SOT-23
RESISTOR, 1M, 1/16W, 0805
RESISTOR, 75K, 1/16W, 0805
RESISTOR, 1K, 1/16W, 0805
RESISTOR, 15, 1/16W, 0805
RESISTOR, 100K, POT, 1/16W, 0805
RESISTOR, 100K, 1/16W, 0805
Notes
1.
Use these locations to insert additional input and/or output capacitance.
A
P
P
L
I
C
A
T
I
O
N
S
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