LT3756EUD#TRPBF

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Analog Devices Inc./Maxim Integrated

100VIN, 100VOUTLED CONTROLLER

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LT3756EUD#TRPBF

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Analog Devices Inc./Maxim Integrated

100VIN, 100VOUTLED CONTROLLER

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3756LT3756-1LT3756-2 Series

The LT3756, LT3756-1 and LT3756-2 are DC/DC controllers designed to operate as a constant-current source for driving high current LEDs. They drive a low side external N-channel power MOSFET from an internal regulated 7.15V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. A ground referenced voltage FB pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source. A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize efficiency, performance or external component size.The LT3756/LT3756-1/LT3756-2 sense output current at the high side of the LED string. High side current sensing is the most flexible scheme for driving LEDs, allowing boost, buck mode or buck-boost mode configuration. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL input provides additional analog dimming capability.ApplicationsHigh Power LED ApplicationsCurrent Limited Constant Voltage ApplicationsBattery Charging

Technical Specifications

Parameters and characteristics for this part

Specification	LT3756EUD#TRPBF

Applications	Lighting
Dimming	PWM, Analog
Frequency (Max)	1 MHz
Frequency (Min)	100 kHz
Internal Switch(s)	No
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package / Case	16-WFQFN Exposed Pad
Package Length	3 mm
Package Name	16-QFN
Package Width	3 mm
Topology	Step-Up (Boost), Flyback, Step-Down (Buck), SEPIC
Type	DC DC Controller
Voltage - Supply (Max)	100 V
Voltage - Supply (Min)	6 V

LT3756LT3756-1LT3756-2 Series

100VIN, 100VOUTLED Controller

Part	Type	Operating Temperature (Min)	Operating Temperature (Max)	Voltage - Supply (Min)	Internal Switch(s)	Grade	Frequency (Min)	Frequency (Max)	Voltage - Supply (Max)	Qualification	Package Width	Package Features	Package Name	Package Length	Topology	Voltage - Output (Min)	Voltage - Output (Max)	Number of Outputs	Applications	Dimming	Mounting Type	Package / Case	Voltage - Output
Analog Devices Inc./Maxim Integrated LT3756JMSE-2#WTRPBF	DC DC Controller	-40 °C	150 °C	6 V	No	Automotive	100 kHz	1 MHz	100 V	AEC-Q100	3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)	2.9 V	100 V	1	LED Lighting	Analog PWM	Surface Mount
Analog Devices Inc./Maxim Integrated LT3756EUD#PBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm		16-QFN	3 mm	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1	Lighting	Analog PWM	Surface Mount	16-WFQFN Exposed Pad
Analog Devices Inc./Maxim Integrated LT3756IMSE-1#TRPBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1		Analog PWM	Surface Mount		100 V
Analog Devices Inc./Maxim Integrated LT3756JMSE-2#PBF	DC DC Controller	-40 °C	150 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1	LED Lighting	Analog PWM	Surface Mount		100 V
Analog Devices Inc./Maxim Integrated LT3756IUD#TRPBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm		16-QFN	3 mm	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1		Analog PWM	Surface Mount	16-WFQFN Exposed Pad	100 V
Analog Devices Inc./Maxim Integrated LT3756JMSE-2#WPBF	DC DC Controller	-40 °C	150 °C	6 V	No	Automotive	100 kHz	1 MHz	100 V	AEC-Q100	3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)	2.9 V	100 V	1	LED Lighting	Analog PWM	Surface Mount
Analog Devices Inc./Maxim Integrated LT3756IMSE-1#PBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1		Analog PWM	Surface Mount		100 V
Analog Devices Inc./Maxim Integrated LT3756EMSE#PBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1		Analog PWM	Surface Mount		100 V
Analog Devices Inc./Maxim Integrated LT3756IMSE-2#PBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1		Analog PWM	Surface Mount		100 V
Analog Devices Inc./Maxim Integrated LT3756EMSE#TRPBF	DC DC Controller	-40 °C	125 °C	6 V	No		100 kHz	1 MHz	100 V		3 mm	Exposed Pad	16-MSOP-EP 16-TFSOP	0.118 in	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)			1		Analog PWM	Surface Mount		100 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

R518 Reliability Data

LT3756EUD#TRPBF | Datasheet

Tape and Reel Packaging