Datasheet

LT3761
24
3761f
Typical applicaTions
10W Grounded Anode Inverting LED Driver
91mΩ
V
IN
LT3761
L1
4.7µH
1:1
RTV
C
EN/UVLO
ISN
PWM
SENSE
2k
100k
4.7µF
25V
4.7µF
10V
4213
0.1µF
0.01µF
1µF
V
IN
5V TO
18V
2k
59k
20k
10Ω
10Ω
34k
28.7k
350kHz
10nF
FB
10mΩ
M1
D1
M2
–10V
CLAMP
M1: VISHAY SILICONIX Si4162DY (30V)
D1: DIODES PDS1040 CTL
L1: WÜRTH 744870004
M2: VISHAY SILICONIX Si2312BDS (20V)
LED: CREE XLAMP XM-L
Q1: ZETEX FMMT593
10W
LED
3761 TA04a
OPENLED
DIM/SS
INTV
CC
GND
ISP
GATE
V
REF
CTRL
PWMOUT
2.5A
Q1
• •
0.47µF
2.2µF
×2
35V
LED
–
PWM Dimming Waveform
I
LED
1A/DIV
V
LED
–
2V/DIV
10µs/DIV
PWM
3761 TA04b
V
IN
= 12V, V
LED
= –3.6V