Datasheet Linear Technology LT3518

Manufacturer	Linear Technology
Series	LT3518

Full-Featured LED Driver with 2.3A Switch Current

Datasheets

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PDF, 465 Kb, Language: en, File uploaded: Oct 4, 2017, Pages: 20
Full-Featured LED Driver with 2.3A Switch Current

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Prices

Packaging

	LT3518EFE	LT3518EFE#PBF	LT3518EFE#TRPBF	LT3518EUF#PBF	LT3518EUF#TRPBF	LT3518HFE	LT3518HFE#PBF	LT3518HFE#TRPBF	LT3518HUF#PBF	LT3518HUF#TRPBF	LT3518IFE	LT3518IFE#PBF	LT3518IFE#TRPBF	LT3518IUF#PBF	LT3518IUF#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Package		TSSOP-16 Package Outline Drawing	TSSOP-16 Package Outline Drawing	4x4 QFN-16 Package Outline Drawing	4x4 QFN-16 Package Outline Drawing		TSSOP-16 Package Outline Drawing	TSSOP-16 Package Outline Drawing	4x4 QFN-16 Package Outline Drawing	4x4 QFN-16 Package Outline Drawing		TSSOP-16 Package Outline Drawing	TSSOP-16 Package Outline Drawing	4x4 QFN-16 Package Outline Drawing	4x4 QFN-16 Package Outline Drawing
Package Code		FE	FE	UF	UF		FE	FE	UF	UF		FE	FE	UF	UF
Package Index		05-08-1663 (BA)	05-08-1663 (BA)	05-08-1692	05-08-1692		05-08-1663 (BA)	05-08-1663 (BA)	05-08-1692	05-08-1692		05-08-1663 (BA)	05-08-1663 (BA)	05-08-1692	05-08-1692
Pin Count		16	16	16	16		16	16	16	16		16	16	16	16

Parametrics

Parameters / Models	LT3518EFE#PBF	LT3518EFE#TRPBF	LT3518EUF#PBF	LT3518EUF#TRPBF	LT3518HFE#PBF	LT3518HFE#TRPBF	LT3518HUF#PBF	LT3518HUF#TRPBF	LT3518IFE#PBF	LT3518IFE#TRPBF	LT3518IUF#PBF	LT3518IUF#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	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control	Improved Average Output Current Control
Demo Boards	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A	DC1160A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	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	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	no	no	no	no
Features	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency
Frequency, kHz	2500	2500	2500	2500	2500	2500	2500	2500	2500	2500	2500	2500
Ishutdown, µA	.1	.1	.1	.1	.1	.1	.1	.1	.1	.1	.1	.1
Isupply, mA	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Max Number of LEDs	10	10	10	10	10	10	10	10	10	10	10	10
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	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 125	-40 to 125	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	1.86	1.86	1.86	1.86	1.86	1.86	1.86	1.86	1.86	1.86	1.86	1.86
Switch Current, A	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8
Synchronous	no	no	no	no	no	no	no	no	no	no	no	no
Topology	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver	Buck, Boost, Buck-Boost, LED Driver
Vin Max, V	40	40	40	40	40	40	40	40	40	40	40	40
Vin Min, V	3	3	3	3	3	3	3	3	3	3	3	3
Vout Max, V	45	45	45	45	45	45	45	45	45	45	45	45

Eco Plan

	LT3518EFE	LT3518EFE#PBF	LT3518EFE#TRPBF	LT3518EUF#PBF	LT3518EUF#TRPBF	LT3518HFE	LT3518HFE#PBF	LT3518HFE#TRPBF	LT3518HUF#PBF	LT3518HUF#TRPBF	LT3518IFE	LT3518IFE#PBF	LT3518IFE#TRPBF	LT3518IUF#PBF	LT3518IUF#TRPBF
RoHS		Compliant	Compliant	Compliant	Compliant		Compliant	Compliant	Compliant	Compliant		Compliant	Compliant	Compliant	Compliant

Articles

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LED Driver Yields 3000:1 True Color PWM Dimming with Any Buck, Boost or Buck-Boost Topology from a Wide 3V-40V Input Range &mdash LT Journal
PDF, 446 Kb, File published: Oct 16, 2007
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LвЂ‰DESIGN FEATURES LED Driver Yields 3000:1 True Color
PWM Dimming with Any Buck, Boost
or Buck-Boost Topology from a Wide
3VвЂ“40V Input Range
by Xin Qi
Introduction
High power LEDs are quickly expanding their reach as a light source for
TV projection, scanners, and various
automotive and avionic products.
All require a constant LED current,
whether in buck, boost, buck-boost
or SEPIC configurations. Pulse Width
Modulation (PWM) is the preferred
dimming method for these LED systems to preserve LED color over a wide
dynamic range of light intensities.
The LT3518 is a highly integrated
2.3A full-featured LED driver capable of providing 3000:1 True Color
PWMв„ў dimming ratio in a variety of
topologies for high power LED driver
applications.
The LT3518 features a 45V power
switch, 100mV high side current PWM PWM OSC OSC SW SW TD
TD = 200ns Figure 1. Regular LED driver timing diagram Figure 2. LT3518 timing diagram sense and accurate open LED protection. It combines a traditional voltage …

Model Line

Series: LT3518 (15)

LT3518EFE LT3518EFE#PBF LT3518EFE#TRPBF LT3518EUF#PBF LT3518EUF#TRPBF LT3518HFE LT3518HFE#PBF LT3518HFE#TRPBF LT3518HUF#PBF LT3518HUF#TRPBF LT3518IFE LT3518IFE#PBF LT3518IFE#TRPBF LT3518IUF#PBF LT3518IUF#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