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Экологический статус

Статьи

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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 Кб, Файл опубликован: 16 окт 2007
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  L DESIGN FEATURES LED Driver Yields 3000:1 True Color
  PWM Dimming with Any Buck, Boost
  or Buck-Boost Topology from a Wide
  3V–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 …

Модельный ряд

Классификация производителя

• 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

Варианты написания:

LT3518EFEPBF, LT3518EFE PBF