LT1182CS View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1182CS' PDF : 24 Pages View PDF
LT1182/LT1183/LT1184/LT1184F
TYPICAL APPLICATIONS N
LT1184F Floating CCFL with Potentiometer Control of Lamp Current
ALUMINUM ELECTROLYTIC IS RECOMMENDED FOR C3B WITH AN
ESR ≥ 0.5Ω 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 (407) 241-7876
C5
R2
1000pF 220k
UP TO 6mA
LAMP
C2
27pF
10 6
3kV
3
2 14
+ C3B
2.2µF
35V
L1
5
0µA TO 45µA ICCFL CURRENT GIVES
0mA TO 6mA LAMP CURRENT FOR A
TYPICAL DISPLAY.
D5
BAT85
C7, 1µF
SHUTDOWN
C1*
0.068µF
R3
100k Q2*
Q1*
1 CCFL
PGND
2
ICCFL
16
CCFL VSW
15
BULB
3
DIO
14
BAT
4
LT1184F
13
CCFL VC
ROYER
5
AGND
12
VIN
6
SHDN
11
REF
7
NC
10
NC
8
NC
9
NC
L2
D1
100µH 1N5818
R4
15.4k
1%
R5
50k
10 TURN
+ C3A
2.2µF
35V
R1
750Ω
VIN
+
≥ 3V
C4
2.2µF
1182 TA03
BAT
8V TO 28V
21
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