Datasheet Linear Technology LT3518IUF#PBF — Datenblatt

Hersteller	Linear Technology
Serie	LT3518
Artikelnummer	LT3518IUF#PBF

Voll ausgestatteter LED-Treiber mit 2,3 A Schaltstrom

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PDF, 465 Kb, Sprache: en, Datei hochgeladen: Oct 4, 2017, Seiten: 20
Full-Featured LED Driver with 2.3A Switch Current

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Verpackung

Package	4x4 QFN-16
Package Code	UF
Package Index	05-08-1692

Parameter

Architecture	Improved Average Output Current Control
Demo Boards	DC1160A
Design Tools	LTspice File
Dimming	3000:1 PWM, 10:1 Analog
Export Control	no
Features	True Color PWM Dimming, Open LED Protection, Resistor Set Frequency
Frequency	2500 kHz
Ishutdown	.1 µA
Isupply	4.5 mA
Max Number of LEDs	10
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	-40 to 85 °C
Output Current	1.86 A
Switch Current	2.8 A
Synchronous	no
Topology	Buck, Boost, Buck-Boost, LED Driver
Vin Max	40 V
Vin Min	3 V
Vout Max	45 V

Öko-Plan

RoHS

Compliant

Artikel

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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, Datei veröffentlicht: 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 …

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Serie: 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

Herstellerklassifikation

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

Andere Namen:

LT3518IUFPBF, LT3518IUF PBF

Verwandte Veröffentlichungen

Datenblätter Datasheet Analog Devices LT3518

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