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LT3492EUFD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LT3492
13
3492fa
TYPICAL APPLICATIONS
Minimum BOM Buck Mode LED Driver
300:1 PWM Dimming at 100Hz Effi ciency
0.3A
C4
0.22µF
C5
0.22µF
C6
0.22µF
ISN1
330m 330m
PV
IN
58V
10 LEDs
L1
33µH
L2
33µH
L3
33µH
I
SP1
0.3A
ISN2
ISP2
0.3A
ISN3
C1-C3
1µF
s3
330m
ISP3
D1 D2 D3
C1-C3, C7: MURATA GRM31CR72A105KA01L
C4-C6: MURATA GRM21BR71H224KA01
D1-D3: DIODES B1100
L1-L3: TDK VLF5014AT-330MR50
10k
150k
49.9k
470pF
3492 TA07a
SW1 SW2
LT3492
GND
SW3 TG1-3
V
C1-3
V
REF
CTRL1-3
ISP1-3
ISN1-3
V
IN
PWM1-3
SHDN
V
IN
5V
C7
1µF
FADJ
OVP1-3
1.3MHz
PWM
5V/DIV
I
L
0.5A/DIV
I
LED
0.5A/DIV
5µs/DIV
3492 TA07b
PWM DUTY CYCLE (%)
0
50
EFFICIENCY (%)
55
65
70
75
40
80
100
95
3492 TA07c
60
20 60
80
85
90
LT3492
14
3492fa
1000:1 PWM Dimming at 100Hz
TYPICAL APPLICATIONS
Triple Boost 100mA × 12 LED Driver
Effi ciency vs PWM Duty Cycle
12 LEDs
C2
1µF
C3
1µF
C4
1µF
PV
IN
12V
100mA
1M
20k
OVP1
ISN1
TG1
1
2.2nF
3492 TA03a
L1
22µH
L2
22µH
L3
22µH
ISP1
D1 D2 D3
M1 M2 M3
SW1 SW2
LT3492
GND
SW3 TG1-3
OVP1-3
V
C1-3
V
REF
CTRL1-3
ISP1-3
ISN1-3
V
IN
PWM1-3
SHDN
V
IN
5V
C1: MURATA GRM31MR71C225KA35
C2-C4: MURATA GRM31CR72A105KA01L
C5: MURATA GRM31MR71H105KA88
D1-D3: DIODES B1100
L1-L3: TDK VLF5014AT-220MR62
M1-M3: ZETEX ZXMP6A13F
C5
1µF
12 LEDs
100mA
1M
20k
OVP2
ISN2
TG2
1
ISP2
12 LEDs
100mA
1M
20k
OVP3
150k
18.2k
49.9k
1.3MHz
ISN3
TG3
1
ISP3
C1
2.2µF
s3
FADJ
PWM
5V/DIV
I
L
0.5A/DIV
I
LED
0.1A/DIV
2µs/DIV
3492 TA03b
PWM DUTY CYCLE (%)
0
75
80
85
80
3492 TA03c
70
65
20 40 60 100
60
55
50
EFFICIENCY (%)
LT3492
15
3492fa
TYPICAL APPLICATIONS
Dual Boost LED Driver
C2
1µF
C3
1µF
C4
1µF
PV
IN
12V
ISN1
M1
1
2.2nF
OPEN
3492 TA04
L1
22µH
L2
22µH
L3
22µH
ISP1
D1 D2 D3
SW1 TG1 SW2
LT3492
GND
SW3 TG2
FADJ
OVP1-3
TG3
V
C1-3
V
REF
CTRL1-3
ISP1-3
ISN1-3
V
IN
PWM1-3
SHDN
V
IN
3V TO 12V
C5
1µF
C1
2.2µF
s3
ISN2
1
ISP2
12 LEDs
200mA
20k
OVP2-3
150k
18.2k
49.9k
1.3MHz
ISN3
M2
1
ISP3
12 LEDs
100mA
1M
1M
20k
OVP1
C1: MURATA GRM31MR71C225KA35
C2-C4: MURATA GRM31CR72A105KA01L
C5: MURATA GRM31MR71H105KA88
D1-D3: DIODES B1100
L1-L3: TDK VLF5014AT-220MR62
M1, M2: ZETEX ZXMP6A13F
1000:1 PWM Dimming at 100Hz for 200mA LEDs
PWM
5V/DIV
I
L2
I
L3
0.5A/DIV
I
LED
0.2A/DIV
2µs/DIV
3492 TA04b
Effi ciency vs PWM Duty Cycle for 200mA LEDs
PWM DUTY CYCLE (%)
0
75
80
85
80
3492 TA04c
70
65
20 40 60 100
60
55
50
EFFICIENCY (%)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LT3492EUFD#TRPBF

Mfr. #:
Buy LT3492EUFD#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LED Lighting Drivers High Current, 60V, 2.1MHz Triple Output LED Driver in 4x5 QFN
Lifecycle:
New from this manufacturer.
Delivery:
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