Datasheet

LT3763
27
3763fa
For more information www.linear.com/LT3763
Typical applicaTions
350W White LED Driver
C
IN2
100µF
V
IN
48V
R
T
200k
EN/UVLO
FBIN
TG
V
IN
BOOST
V
REF
CTRL1
CTRL2
LT3763
SW
BG
GND
V
C
SENSE
+
SENSE
–
INTV
CC
INTV
CC
C
BOOST
220nF
L1
6µH
50k
C
VCC
22µF
R
S
5mΩ
FB
FAULT
R
C
5k
C
C
5nF
R
FB1
931k
L1: COILTRONICS HC2-6R0
M1, M2: RENESAS RJK0851
R
S
: VISHAY WSL25125L000
LUMINUS
PT-121
3763 TA06
R
FB2
30.9k
C
REF
2.2µF
M1
×2
M2
×2
PWMOUT
V
OUT
37V, 10A MAXIMUM
C
OUT
10µF
×6
PWM
SYNC
SS
C
SS
10nF
RT
C
S
1nF
R
FAULT
100k
3V
0V
400kHz
C
IN1
4.7µF
IVINNIVINP
IVINMON
ISMON
R
EN1
374k
R
EN2
124k
Maximum Output Voltage Efficiency vs LED Current
I
LED
(A)
0
EFFICIENCY (%)
100
90
80
95
85
9
3763 TA06c
12
63
V
IN
= 48V
V
OUT
= 35V
I
LED
(A)
0
0
V
OUT
(V)
10
20
30
40
3 6 9
3763 TA06b
12
V
IN
= 48V
I
LIMIT
= 10A