Datasheet Linear Technology LT3755

Manufacturer	Linear Technology
Series	LT3755

40VIN, 75VOUT LED Controllers

Datasheets

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PDF, 359 Kb, Revision: D, File uploaded: Oct 4, 2017

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Packaging

	LT3755EMSE#PBF	LT3755EMSE#TRPBF	LT3755EUD#PBF	LT3755EUD#TRPBF	LT3755IMSE#PBF	LT3755IMSE#TRPBF	LT3755IUD#PBF	LT3755IUD#TRPBF
N	1	2	3	4	5	6	7	8
Package	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	3x3 QFN-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	3x3 QFN-16 Package Outline Drawing	3x3 QFN-16 Package Outline Drawing
Package Code	MSE	MSE	UD	UD	MSE	MSE	UD	UD
Package Index	05-08-1667	05-08-1667	05-08-1691	05-08-1691	05-08-1667	05-08-1667	05-08-1691	05-08-1691
Pin Count	16	16	16	16	16	16	16	16

Parametrics

Parameters / Models	LT3755EMSE#PBF	LT3755EMSE#TRPBF	LT3755EUD#PBF	LT3755EUD#TRPBF	LT3755IMSE#PBF	LT3755IMSE#TRPBF	LT3755IUD#PBF	LT3755IUD#TRPBF
Architecture	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control
Demo Boards	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B	DC1268B-A,DC1268B-B
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Dimming	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog
Export Control	no	no	no	no	no	no	no	no
Features	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization	True Color PWM Dimming, Open LED Detection, Resistor Set Frequency, External Synchronization
Frequency, kHz	1000	1000	1000	1000	1000	1000	1000	1000
Ishutdown, µA	.1	.1	.1	.1	.1	.1	.1	.1
Isupply, mA	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.4
Max Number of LEDs	25+	25+	25+	25+	25+	25+	25+	25+
Monolithic	no	no	no	no	no	no	no	no
Number of Outputs	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	10	10	10	10	10	10	10	10
Switch Current, A	25	25	25	25	25	25	25	25
Synchronous	no	no	no	no	no	no	no	no
Topology	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver	Buck, Boost, Sepic, Buck-Boost, LED Driver
Vin Max, V	40	40	40	40	40	40	40	40
Vin Min, V	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Vout Max, V	75	75	75	75	75	75	75	75

Eco Plan

	LT3755EMSE#PBF	LT3755EMSE#TRPBF	LT3755EUD#PBF	LT3755EUD#TRPBF	LT3755IMSE#PBF	LT3755IMSE#TRPBF	LT3755IUD#PBF	LT3755IUD#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LT3755-1 LT3755-2

Articles

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Don't Want to Hear It? Avoid the Audio Band with PWM LED Dimming at Frequencies Above 20kHz &mdash LT Journal
PDF, 596 Kb, File published: Mar 1, 2009
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LвЂ‰DESIGN IDEAS DonвЂ™t Want to Hear It? Avoid the
Audio Band with PWM LED Dimming
at Frequencies Above 20kHz by Eric Young
Introduction
The requirements of LED drivers become more demanding as application
designers exploit the unique characteristics of LEDs. Linear Technology offers
a complete portfolio of LED drivers
with the performance levels required to
meet even the most challenging design
requirements. One area where these
LED drivers especially excel is in the
performance and flexibility of their
PWM dimming capabilities. LEDs can
be turned on and off rapidlyвЂ”it takes
only nanoseconds to illuminate or
extinguish the source. PWM dimming
exploits this characteristic to achieve
orders of magnitude dimming, even
while maintaining a constant output
spectrum over the entire dynamic light
intensity range.
The broad field of available LED
drivers narrows quite a bit when …

Model Line

Series: LT3755 (8)

LT3755EMSE#PBF LT3755EMSE#TRPBF LT3755EUD#PBF LT3755EUD#TRPBF LT3755IMSE#PBF LT3755IMSE#TRPBF LT3755IUD#PBF LT3755IUD#TRPBF

Manufacturer's Classification

Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers | Step-Down (Buck) LED Drivers | Buck-Boost LED Drivers | Multitopology LED Driver
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) LED Drivers