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LT1184CS датащи(PDF) 22 Page - Linear Technology

номер детали LT1184CS
подробное описание детали  CCFL/LCD Contrast Switching Regulators
PDF  24 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LT1184CS датащи(HTML) 22 Page - Linear Technology

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LT1182/LT1183/LT1184/LT1184F
TYPICAL APPLICATIONS N
R2
40.5k
1182 TA04
1182 TA05
1182 TA08
1182 TA09
1182 TA10
1182 TA06
1182 TA07
1182 TA12
C1
2.2
µF
R1
40.5k
+
TO ICCFL PIN
LT1182/LT1183 ICCFL PWM Programming
LT1183 ICCFL PWM Programming with VREF
LT1184/LT1184F ICCFL PWM Programming
LT1183 ICCFL Programming
with Potentiometer Control
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
R2
40.35k
C1
2.2
µF
R1
40.35k
+
TO ICCFL PIN
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
+
FROM VREF
TO ICCFL PIN
Q1
VN2222L
R1
330
Ω
R2
7.15k
R3
7.15k
C1
22
µF
R1 PREVENTS OSCILLATION.
R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
FROM VREF
TO ICCFL PIN
Q1
VN2222L
R1
3.57k
R2
3.57k
R3
7.15k
C1
22
µF
V (PWM)
0V TO 5V
1kHz PWM
10 to 100% DC =
50
µA TO 0µA
R1, R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
+
VREF
R2
50k
R1
15.9k
TO ICCFL PIN
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
ICCFL = 12µA TO 50µA.
LT1184/LT1184F ICCFL Programming
with Potentiometer Control
LT1182/LT1183/LT1184/LT1184F
ICCFL Programming with DAC Control
VREF
R2
50k
R1
15.5k
TO ICCFL PIN
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
ICCFL = 12µA TO 50µA.
LT1184/LT1184F ICCFL PWM Programming with VREF
LT1183 ICCFL PWM Programming with VREF
+
FROM VREF
TO ICCFL PIN
Q1
VN2222L
R1
330
Ω
R2
6.98k
R3
6.98k
C1
22
µF
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC =
0
µA to 50µA
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC =
0
µA to 50µA
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC =
0
µA to 50µA
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC =
0
µA to 50µA
R1 PREVENTS OSCILLATION.
R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
1182 TA11
FROM VREF
TO ICCFL PIN
Q1
VN2222L
R1
3.48k
R2
3.48k
R3
6.98k
C1
22
µF
V (PWM)
0V TO 5V
1kHz PWM
10 to 100% DC =
50
µA TO 0µA
R1, R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
+
LT1184/LT1184F ICCFL PWM Programming with VREF
DAC
R1
5k
TO ICCFL PIN
R1 DECOUPLES THE DAC OUTPUT CAPACITANCE
FROM THE ICCFL PIN.
STRAY OUTPUT
CAPACITANCE
CURRENT SOURCE
DAC



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