LT1184F_15 Datasheet, PDF (23/24 Pages) Linear Technology – CCFL/LCD Contrast Switching Regulators

TYPICAL APPLICATIONS N
LT1182/LT1183/LT1184/LT1184F
LT1182 LCD Contrast Positive Boost Converter
C8
0.068µF ^R7
33K
1 _CCFL
PGND
2
I_CCFL
16
CCFL V_SW
15
BULB
3
DIO
14
BAT
4
LT1182
13
CCFL V_C
ROYER
5
AGND
12
V_IN
6
SHDN
11
FBP
7
LCD V_C
8 LCD
PGND
10
FBN
9
LCD V_SW
+ C13
2.2µF
35V
V_IN
+
≥ 3V
C4
2.2µF
L3
50µH
COILTRONICS CTX50-4
D5
+ C11
1N914
22µF
35V
C10
0.01µF
BAT
8V TO 28V
POSCON
V_OUT ≥ V_IN
R12
20k
R13
8.45k
1%
R14
1.21k
1%
1182 TA12
LT1182 LCD Contrast Positive Boost/Charge Pump Converter
C8
0.068µF
R7
33K
1 _CCFL
PGND
2
I_CCFL
16
CCFL V_SW
15
BULB
3
DIO
14
BAT
4
LT1182
13
CCFL V_C
ROYER
5
AGND
12
V_IN
6
SHDN
11
FBP
7
LCD V_C
8 LCD
PGND
10
FBN
9
LCD V_SW
+ _C13
2.2µF
35V
V_IN
+
≥ 3V
C4
2.2µF
L3
50µH
COILTRONICS CTX50-4
C11
22µF
35V
D5
1N914
D4
+
1N914
C10
0.01µF
BAT
8V TO 28V
C11
22µF
35V
POSCON
V_OUT ≥ V_IN
R12
20k
R13
8.45k
1%
R14
1.21k
1%
1182 TA13
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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