Datasheet

LT3599
20
3599fe
TYPICAL APPLICATIONS
7W LED Driver
SEPIC (Survives Output Short to Ground)
300kHz, Three Strings, 100mA per String, 6 LEDs per String
R
C
10k
C1
3.3μF
25V
C4
47nF
L1
22μH
L2
22μH
D1
C2
4.7μF
50V
s2
C7
4.7μF
25V
C6
1μF
25V
100pF
C
C
2.2nF
3599 TA04a
LT3599
V
O_SW
FB
OPENLED
SHORTLED
PWM
SHDN/UVLO
RT
SYNC
PWM
100mA PER STRING
6 LEDs/
STRING
CTRL
V
REF
T
SET
LED1
LED2
LED3
LED4
V
OUT
SWV
IN
V
C
SS GND
I
SET
R10
1M
10Ω
R11
49.9k
V
IN
V
IN
R9
13.3k
R6
210k
R5
100k
R4
100k
DISABLE4
R7
53.6k
R8
80.6k
R1
200k
R2
31.6k
R3
33.2k
V
IN
3.1V TO 5.5V
PV
IN
8V TO 16V
C3
1μF
6.3V
C1: MURATA GRM21BR71E335K
C2: MURATA GRM31CR71H475K
D1: DIODES INC.
B360A
L1, L2: VISHAY IHLP2525CZER220M11