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LT3756 Datasheet(PDF) 31 Page - Analog Devices

Part # LT3756
Description  60VIN/120VOUT Dual LED Controller with Exponential PWM and Scalable Dimming
PDF  31 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3756 Datasheet(HTML) 31 Page - Analog Devices

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LT8355-1
31
Rev. A
For more information www.analog.com
 ANALOG DEVICES, INC. 2022
12/22
www.analog.com
RELATED PARTS
TYPICAL APPLICATION
High External PWM Dimming Boost Dual LED Driver
Efficiency vs VIN Voltage
10000:1 External PWM Dimming at 100Hz
BOTH CHANNELS
CH1 ONLY
CH2 ONLY
VIN (V)
8
10
12
14
16
18
87
88
89
90
91
92
93
83551 TA07b
VIN = 12V
2µs/DIV
PWM PIN
VOLTAGE
2V/DIV
LED CURRENT
200mA/DIV
INDUCTOR
CURRENT
1A/DIV
8355-1 TA07c
D1
1.5
M3
51.1k
499k
47µH
L1
102k
1nF
10k
D2
1.5
M4
10k
50m
ILIM = 2A
50m
ILIM = 2A
M1
M2
536k
4.7µF
47µH
L2
2.2µF
2.2µF
VIN
8V TO 18V
GATE1
SENSEN1
PWM1
CHANNEL 1
DIMMING
VREF
RT
0.167A
f = 400kHz
LT8355-1
SENSEP1
ISP1
ISN1 PWMTG1
VIN
EN/UVLO
VC2
FB1
PWM2
CHANNEL 2
DIMMING
GATE2
SENSEN2
0.167A
SENSEP2
ISP2
ISP2
ISP1
ISN2 PWMTG2
10W
LED
ARRAY
GND
10W
LED
ARRAY
50V
100V
100V
L1, L2: WURTH 7447709470
M1, M2: VISHAY Si7810DN
M3, M4: VISHAY Si4409DY
D1, D2: DIODES INC PDS3100
8355-1 TA07a
1nF
10k
VC1
10k
536k
FB2
2.2µF
INTVCC
CTRL1
IADJ2
FAULT1 FAULT2
100k
100k
CTRL2
PART NUMBER
DESCRIPTION
COMMENTS
LT8356-1
100VIN/120VOUT LED Controller with Exponential
PWM and Scalable Dimming
VIN: 5V to 100V, VOUT(MAX): 120V, 20,000:1 External Dimming, 128:1 Exponential
Internal PWM Dimming, ISD <1µA, 3mm × 4mm QFN-20, MSOP-16E Packages
LT3952A
60V, 4A Synchronous Step-Up LED Driver
VIN(MIN) = 3V, VIN(MAX) = 42V, VOUT = 0V to 60V, 5:1 Internal Dimming and
4,000:1 External Dimming, ISD = 1μA, TSSOP-28E
LT3755/LT3755-1/
LT3755-2
High Side 75V, 1MHz LED Controller with 3,000:1
PWM Dimming
VIN: 4.5V to 40V, VOUT: 5V to 60V, True Color PWM, Analog = 3000:1, ISD <1µA,
3mm × 3mm QFN-16, MSOP-16E Packages
LT3756/LT3756-1/
LT3756-2
High Side 100V, 1MHz LED Controller with 3,000:1
PWM Dimming
VIN: 6V to 100V, VOUT: 5V to 100V, True Color PWM, Analog = 3000:1, ISD <1µA,
3mm × 3mm QFN-16, MSOP-16E Packages
LT3761/LT3761A High Side 100V, 1MHz LED Controller with 3,000:1
PWM Dimming and Internal PWM Generator
VIN: 4.5V to 60V, VOUT(MAX) = 80V, PWM and Analog Dimming, ISD <1µA,
MSOP-16E Package



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