Datasheet

14
LTC3402
3402fb
High Efficiency, Compact CCFL Supply with Remote Dimming
TYPICAL APPLICATIO S
U
3
10
2
6
1
3402 TA06
LTC3402
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
C5
1μF
C4
0.1μF
Li-Ion
C1
10μF
R5
1M
R
t
150k
R2
10k
R3
1k
R4
20k
D4
D1
D2 D3
Q1
Q2
C2
0.22μF
T1
1
10 2 3
4
5
6
C3
27pF
1kV
CCFL
DIMMING
INPUT
0V TO 2.5V
V
IN
= 2.5V TO 4.2V
R1
300Ω
L1
33μF
C1: TAIYO YUDEN JMK212BJ106MG
C2: PANASONIC ECH-U
D1: ZETEX ZHCS-1000
D2 TO D4: 1N4148
CCFL BACKLIGHT APPLICATION CIRCUITS
CONTAINED IN THIS DATA SHEET ARE
COVERED BY U.S. PATENT NUMBER 5408162
AND OTHER PATENTS PENDING
L1: SUMIDA CD-54-330MC
Q1, Q2: ZETEX FMMT-617
T1: SUMIDA C1Q122