LT3492 LINER [Linear Technology], LT3492 Datasheet - Page 12

• Manufacturer Part Number: LT3492
• Description: Triple Output LED Driver with 3000:1 PWM Dimming
• Manufacturer: LINER [Linear Technology]

LT3492
TYPICAL APPLICATIONS
12
0.5A/DIV
0.5A/DIV
5V/DIV
PWM
I
LED
I
L
300:1 PWM Dimming at 100Hz
V
5V
IN
5μs/DIV
C1-C3, C7: MURATA GRM31CR72A105KA01L
C4-C6: MURATA GRM21BR71H224KA01
D1-D3: DIODES B1100
L1-L3: TDK VLF5014AT-330MR50
C7
1μF
10 LEDs
PV
58V
IN
33μH
ISP1-3
ISN1-3
V
PWM1-3
SHDN
IN
L1
SW1
330mΩ
3492 TA07b
Minimum BOM Buck Mode LED Driver
0.3A
I
I
SP1
SN1
D1
0.22μF
C4
0.22μF
C5
D2
LT3492
SW2
GND
L2
33μH
330mΩ
0.3A
I
I
SP2
SN2
33μH
L3
SW3
95
90
85
80
75
70
65
60
50
55
330mΩ
0.3A
0
ISP3
ISN3
D3
0.22μF
CTRL1-3
OVP1-3
C6
TG1-3
V
FADJ
V
C1-3
REF
20
PWM DUTY CYCLE (%)
Effi ciency
C1-C3
1μF
40
3
150k
49.9k
1.3MHz
60
10k
3492 TA07a
470pF
80
3492 TA07c
100
3492f