OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LT1182CS

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
22
LT1182/LT1183/LT1184/LT1184F
TYPICAL APPLICATIONS N
U
R2
40.5k
1182 TA04
1182 TA05
1182 TA08
1182 TA09
1182 TA10
1182 TA06
1182 TA07
1182 TA12
C1
2.2µF
R1
40.5k
+
TO I
CCFL
PIN
LT1182/LT1183 I
CCFL
PWM Programming LT1183 I
CCFL
PWM Programming with V
REF
LT1184/LT1184F I
CCFL
PWM Programming
LT1183 I
CCFL
Programming
with Potentiometer Control
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
R2
40.35k
C1
2.2µF
R1
40.35k
+
TO I
CCFL
PIN
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
+
FROM V
REF
TO I
CCFL
PIN
Q1
VN2222L
R1
330Ω
R2
7.15k
R3
7.15k
C1
22µF
R1 PREVENTS OSCILLATION.
R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
FROM V
REF
TO I
CCFL
PIN
Q1
VN2222L
R1
3.57k
R2
3.57k
R3
7.15k
C1
22µF
V (PWM)
0V TO 5V
1kHz PWM
10 to 100% DC =
50µA TO 0µA
R1, R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
+
V
REF
R2
50k
R1
15.9k
TO I
CCFL
PIN
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
I
CCFL
= 12µA TO 50µA.
LT1184/LT1184F I
CCFL
Programming
with Potentiometer Control
LT1182/LT1183/LT1184/LT1184F 
I
CCFL
Programming with DAC Control
V
REF
R2
50k
R1
15.5k
TO I
CCFL
PIN
R1 AND R2 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
I
CCFL
= 12µA TO 50µA.
LT1184/LT1184F I
CCFL
PWM Programming with V
REF
LT1183 I
CCFL
PWM Programming with V
REF
+
FROM V
REF
TO I
CCFL
PIN
Q1
VN2222L
R1
330Ω
R2
6.98k
R3
6.98k
C1
22µF
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC = 
0µA to 50µA
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC = 
0µA to 50µA
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC = 
0µA to 50µA
V (PWM)
0V TO 5V
1kHz PWM
0% to 90% DC = 
0µA to 50µA
R1 PREVENTS OSCILLATION.
R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
1182 TA11
FROM V
REF
TO I
CCFL
PIN
Q1
VN2222L
R1
3.48k
R2
3.48k
R3
6.98k
C1
22µF
V (PWM)
0V TO 5V
1kHz PWM
10 to 100% DC =
50µA TO 0µA
R1, R2 AND R3 ARE IDEAL VALUES.
USE NEAREST 1% VALUE.
+
LT1184/LT1184F I
CCFL
PWM Programming with V
REF
DAC
R1
5k
TO I
CCFL
PIN
R1 DECOUPLES THE DAC OUTPUT CAPACITANCE
FROM THE I
CCFL
PIN.
STRAY OUTPUT
CAPACITANCE
CURRENT SOURCE
DAC
23
LT1182/LT1183/LT1184/LT1184F
TYPICAL APPLICATIONS N
U
LT1182 LCD Contrast Positive Boost Converter
C13
2.2µF
35V
BAT
8V TO 28V
POSCON
V
OUT
≥ V
IN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I
CCFL
DIO
CCFL V
C
AGND
SHDN
LCD V
C
CCFL V
SW
BULB
BAT
ROYER
V
IN
FBP
FBN
LCD V
SW
CCFL
PGND
LCD
PGND
LT1182
+
C8
0.068µF
R7
33K
R13
8.45k
1%
R14
1.21k
1%
C4
2.2µF
V
IN
≥ 3V
R12
20k
+
C10
0.01µF
L3
50µH
COILTRONICS CTX50-4
D5
1N914
+
C11
22µF
35V
1182 TA12
LT1182 LCD Contrast Positive Boost/Charge Pump Converter
C13
2.2µF
35V
BAT
8V TO 28V
POSCON
V
OUT
≥ V
IN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I
CCFL
DIO
CCFL V
C
AGND
SHDN
LCD V
C
CCFL V
SW
BULB
BAT
ROYER
V
IN
FBP
FBN
LCD V
SW
CCFL
PGND
LCD
PGND
LT1182
+
C8
0.068µF
R7
33K
R13
8.45k
1%
R14
1.21k
1%
C4
2.2µF
V
IN
≥ 3V
R12
20k
+
C10
0.01µF
1182 TA13
L3
50µH
COILTRONICS CTX50-4
D4
1N914
C11
22µF
35V
D5
1N914
+
+
C11
22µF
35V
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.
24
LT1182/LT1183/LT1184/LT1184F
TYPICAL APPLICATIONS N
U
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
(408) 432-1900
●
FAX
: (408) 434-0507
●
TELEX
: 499-3977
LT/GP 0495 10K • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1995
LT1182 LCD Contrast Positive to Negative/Charge Pump Converter
C13
2.2µF
35V
BAT
8V TO 28V
NEGCON
|V
OUT
| ≥ V
IN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I
CCFL
DIO
CCFL V
C
AGND
SHDN
LCD V
C
CCFL V
SW
BULB
BAT
ROYER
V
IN
FBP
FBN
LCD V
SW
CCFL
PGND
LCD
PGND
LT1182
+
C8
0.068µF
R7
33K
5V
R10
10k
1%
R9
4.99k
1%
C4
2.2µF
V
IN
≥ 3V
+
R11
20k
1%
C9
0.01µF
L3
CTX50-4
COILTRONICS CTX50-4
D4
1N914
C11
22µF
35V
D5
1N914
+
+
C11
22µF
35V
1182 TA14
PART NUMBER FREQUENCY SWITCH CURRENT DESCRIPTION
LT1107 63kHz 1A Micropower DC/DC Converter for LCD Contrast Control
Hysteretic
LT1172 100kHz 1.25A Current Mode Switching Regulator for CCFL or LCD
Contrast Control
LT1173 24kHZ 1A Micropower DC/DC Converter for LCD Contrast Control
Hysteretic
LT1186 200kHz 1.25A CCFL Switching Regulator with DAC for “Bits to
Brightness Control”
LT1372 500kHz 1.5A Current Mode Switching Regulator for CCFL or LCD
Contrast Control
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTION
U
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
× 45°
0° – 8° TYP
0.008 – 0.010
(0.203 – 0.254)
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
1
2
3
4
5
6
7
8
0.150 – 0.157*
(3.810 – 3.988)
16
15
14
13
0.386 – 0.394*
(9.804 – 10.008)
0.228 – 0.244
(5.791 – 6.197)
12
11 10
9
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
TYP
S Package
16-Lead Plastic SOIC
RELATED PARTS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

LT1182CS

Mfr. #:
Buy LT1182CS
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators LT1182 - CCFL/LCD Contrast Switching Regulators
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet