Datasheet Linear Technology LT3486IFE#TRPBF — Ficha de datos

Fabricante	Linear Technology
Serie	LT3486
Numero de parte	LT3486IFE#TRPBF

Convertidores elevadores duales LED blancos 1.3A con atenuación amplia

Hojas de datos

PDF, 2.8 Mb, Revisión: E, Archivo subido: oct 4, 2017

Extracto del documento

Artículos

Descargar
Dual Step-Up Converter Drives White LEDs with 1000:1 PWM Dimming &mdash LT Journal
PDF, 269 Kb, Archivo publicado: nov 21, 2006
Extracto del documento
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. …

Linea modelo

Serie: LT3486 (6)

LT3486EDHC#PBF LT3486EDHC#TRPBF LT3486EFE#PBF LT3486EFE#TRPBF LT3486IFE#PBF LT3486IFE#TRPBF

Clasificación del fabricante

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

Otros nombres:

LT3486IFETRPBF, LT3486IFE TRPBF

Contactos