Datasheet Linear Technology LTC3454EDD#PBF — Ficha de datos

Fabricante	Linear Technology
Serie	LTC3454
Numero de parte	LTC3454EDD#PBF

Controlador LED de alta corriente Buck-Boost síncrono 1A

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PDF, 181 Kb, Revisión: A, Archivo subido: oct 4, 2017

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Artículos

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High Efficiency, Monolithic Synchronous Buck-Boost LED Driver Drives up to 1A Continuous Current &mdash LT Journal
PDF, 376 Kb, Archivo publicado: marzo 28, 2006
Extracto del documento
DESIGN FEATURES High Efп¬Ѓciency, Monolithic
Synchronous Buck-Boost LED Driver
Drives up to 1A Continuous Current
by Aspiyan Gazder Introduction
The LTC3454 is a synchronous buckboost DC/DC converter, designed for
driving a single high power LED with
regulated currents up to 1A from a
single Li-Ion battery. Switching converters are typically used to regulate
a voltage, but LEDs require constant
current to generate predictable light
output. The LTC3454 uses an autozero
transconductance error ampliп¬Ѓer in its
regulation loop to accurately control
LED current. The LED current can
be set to one of four levels, including
shutdown, using two external resistors
and dual enable pins. In shutdown no
current is drawn.
The wide VIN range of a Lithium-Ion
battery (2.7V to 4.2V) requires that a
converter be able to both step-up and
step-down the input voltage when
the LED forward voltage is within the …

Linea modelo

Serie: LTC3454 (2)

LTC3454EDD#PBF LTC3454EDD#TRPBF

Clasificación del fabricante

Power Management > LED Driver ICs > Buck-Boost LED Drivers

Otros nombres:

LTC3454EDDPBF, LTC3454EDD PBF

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