Linear Technology DC1319B-A - LT3756EMSE-2 Demo Board | 100Vin, 100Vout LED Cotroller DC1319B-A DC1319B-A Data Sheet
Product codes
DC1319B-A
LT3756/LT3756-1/LT3756-2
375612fb
Typical applicaTions
30W White LED Headlamp Driver with Thermal Derating
V
(ISP – ISN)
Threshold vs Temperature
for NTC Resistor Divider
V
IN
LT3756-2
L1, 22µH
D1
GND
V
C
INTV
CC
SHDN/UVLO
FB
V
REF
ISP
16.9k
100k
INTV
CC
R1
1M
C
IN
4.7µF
C
C
0.001µF
C
SS
0.01µF
V
IN
8V TO 60V
(100V TRANSIENT)
R2
185k
R
C
10k
R
T
28.7k
375kHz
M1: VISHAY SILICONIX Si7454DP
D1: DIODES INC PDS5100
L1: COILTRONICS DR127-220
RT1: MURATA NCP18WM104J
M2: VISHAY SILICONIX Si2328DS
C
VCC
4.7µF
SEE SUGGESTED LAYOUT, FIGURE 5
100k
NTC
RT1
CTRL
R
SENSE
0.018Ω
R
LED
0.27Ω
R3
1M
M1
M2
R4
14k
370mA
C
OUT
4.7µF
30W LED STRING
375612 TA02a
OPENLED
PWM
SS
PWM
SS
RT
ISN
GATE
SENSE
PWMOUT
TEMPERATURE (°C)
25
0
V
(ISP – ISN)
THRESHOLD (mV)
40
80
45
65
105
85
120
20
60
100
125
375512 TA02b