Datasheet

LT3745
26
3745f
Typical applicaTion
Figure 7. 16-Channel LED Driver, 500kHz Buck, 1 LED 25mA to 75mA per Channel, 100Hz 12-Bit Dimming
EN/UVLO
SYNC
RT
SS
V
CC
I
SET
T
SET
SCKI
SDI
LDI
SCKO
SDO
LDO
LED10
LED11
LED12
LED13
LED14
LED15
LED00
LED01
LED02
LED03
LED04
LED05
.
.
.
. . .
LT3745
100k
V
IN
10V TO 40V
EN
V
CC
3V TO 5.5V
V
IN
CAP
0.47µF
16V
M1
D1
GATE
GND
FB
ISP
ISN
4.7µF
50V
23.2k
10k
C1
220µF
L1
22µH
25mΩ
4V MAXIMUM OUTPUT VOLTAGE
PWMCK
TTL/CMOS
M1: VISHAY Si9407BDY
D1: DIODES DFLS160
L1: WÜRTH ELECTRONIK 7447779122
C1: SANYO 6TPE220MI
409.6kHz CLOCK
TTL/CMOS
3745 TA02
10µF
10V
105k
10nF
60.4k
32.4k