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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Статьи

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  Dual Step-Up Converter Drives White LEDs with 1000:1 PWM Dimming &mdash LT Journal
  PDF, 269 Кб, Файл опубликован: 21 ноя 2006
  Выписка из документа

  L DESIGN FEATURES Dual Step-Up Converter Drives White
  LEDs with 1000:1 PWM Dimming
  by Keith Szolusha Introduction
  Notebook computers, large-screen
  handheld PDAs, dashboard displays,
  and automotive and avionic in-cabin
  entertainment LCD panels are illuminated with strings of high power white
  LEDs. White LEDs are the preferred
  over other backlight technologies because they provide true white light at
  a high enough intensity for daylight
  viewing, and enough dimming capability for nighttime use. LEDs also offer
  relatively long life spans and a lack
  of hazardous materials. LED strings
  lining the edges of these LCD panels provide uniform brightness when
  driven with a constant current.
  The maximum switch voltage of an
  LED driver limits the number of LEDs
  that it can drive in series. It may seem
  that paralleling LEDs is a good way
  to increase the capacity of a driver
  IC, but parallel LEDs must be wellmatched in forward voltage; otherwise
  un-matched LED strings cause uneven
  currents and thus uneven brightness. …

Модельный ряд

Классификация производителя

• Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers

Варианты написания:

LT3486EDHCPBF, LT3486EDHC PBF