Datasheet

LT3598
16
3598fb
TYPICAL APPLICATIONS
L1
10μH
D1
C2
4.7μF
3598 TA02a
LT3598
V
O_SW
FB
OPENLED
PWM
SHDN
SYNC
LED1
LED2
LED3
LED4
LED5
LED6
V
OUT
SWV
IN
R4
1.00M
R5
30.9k
R3
14.7k
R7
100k
C1: TAIYO YUDEN GMK325BJ225ML
C2: MURATA GRM32ER71H475K
C3: TAIYO YUDEN LMK212BJ225MG
D1: DIODES, INC. B240A
L1: W
ÜRTH ELEKTRONIK 744777410
R
NTC
: MURATA NCP18WF104J03RB
R
NTC
100k
R
HOT
10k
R6
100k
PWM
SHDN
SYNC
C1
2.2μF
PV
IN
6V TO 40V
C3
2.2μF
V
IN
5V
R
C
2.61k
C
C
15nF
RT
CTRL
V
REF
V
C
SS GND
T
SET
I
SET
C4
0.1μF
C5
47pF
R1
51.1k
R8
60.4k
20mA
LED Driver for 40 White LEDs with Two Channels Unused
Effi ciency (PWM Dimming)
TOTAL LED CURRENT (mA)
0
EFFICIENCY (%)
80
85
90
70
75
70
20 40
10 90
30 50
80
60
60
50
65
55
95
3598 TA02b
PV
IN
= 25V
PV
IN
= 12V