LT1184FCS Linear Technology, LT1184FCS Datasheet - Page 21

• Manufacturer Part Number: LT1184FCS
• Description: IC SW REG CCFL CONTRAST 16-SOIC
• Manufacturer: Linear Technology

Specifications of LT1184FCS

• Applications: Converter, CCFL, LCD
• Voltage - Input: 3 ~ 30 V
• Number Of Outputs: 1
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -
• Other names: LT1184FCSW; LT1184FCSW

TYPICAL APPLICATIONS
ALUMINUM ELECTROLYTIC IS RECOMMENDED FOR C3B WITH AN
ESR 0.5 TO PREVENT DAMAGE TO THE LT1184F HIGH-SIDE
SENSE RESISTOR DUE TO SURGE CURRENTS AT TURN-ON.
C1 MUST BE A LOW LOSS CAPACITOR, C1 = WIMA MKP-20
Q1, Q2 = ZETEX ZTX849 OR ROHM 2SC5001
L1 = COILTRONICS CTX210605
L2 = COILTRONICS CTX100-4
*DO NOT SUBSTITUTE COMPONENTS
COILTRONICS [phone]
0 A TO 45 A I
0mA TO 6mA LAMP CURRENT FOR A
TYPICAL DISPLAY.
CCFL
CURRENT GIVES
SHUTDOWN
LT1184F Floating CCFL with Potentiometer Control of Lamp Current
C7, 1 F
BAT85
U
D5
1
2
3
4
5
6
7
8
N
I
DIO
CCFL V
AGND
SHDN
NC
CCFL
PGND
NC
CCFL
C5
1000pF
LT1184F
C
CCFL V
ROYER
R3
100k
BULB
R2
220k
BAT
REF
V
SW
NC
NC
IN
16
15
14
13
12
11
10
9
Q2*
3
UP TO 6mA
10
0.068 F
LT1182/LT1183/LT1184/LT1184F
15.4k
LAMP
+
C1*
1%
R4
2
L2
100 H
6
C3B
2.2 F
35V
Q1*
1
10 TURN
C2
27pF
3kV
50k
1N5818
R5
4
D1
5
L1
1182 TA03
R1
750
+
+
C4
2.2 F
C3A
2.2 F
35V
V
IN
3V
BAT
8V TO 28V
21