Datasheet Linear Technology LT3486 — Ficha de datos

Fabricante	Linear Technology
Serie	LT3486

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

Precios

Embalaje

	LT3486EDHC#PBF	LT3486EDHC#TRPBF	LT3486EFE#PBF	LT3486EFE#TRPBF	LT3486IFE#PBF	LT3486IFE#TRPBF
N	1	2	3	4	5	6
Package	5x3 DFN-16 Dibujo del esquema del paquete	5x3 DFN-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete	TSSOP-16 Dibujo del esquema del paquete
Package Code	DHC	DHC	FE	FE	FE	FE
Package Index	05-08-1706	05-08-1706	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)	05-08-1663 (BC)
Pin Count	16	16	16	16	16	16

Paramétricos

Parameters / Models	LT3486EDHC#PBF	LT3486EDHC#TRPBF	LT3486EFE#PBF	LT3486EFE#TRPBF	LT3486IFE#PBF	LT3486IFE#TRPBF
Architecture	Average Output Current Control	Average Output Current Control	Average Output Current Control	Average Output Current Control	Average Output Current Control	Average Output Current Control
Demo Boards	DC876A	DC876A	DC876A	DC876A	DC876A	DC876A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Dimming	1000:1 PWM & 10:1 Analog	1000:1 PWM & 10:1 Analog	1000:1 PWM & 10:1 Analog	1000:1 PWM & 10:1 Analog	1000:1 PWM & 10:1 Analog	1000:1 PWM & 10:1 Analog
Export Control	no	no	no	no	no	no
Features	Resistor Set Frequency, Open LED Protection	Resistor Set Frequency, Open LED Protection	Resistor Set Frequency, Open LED Protection	Resistor Set Frequency, Open LED Protection	Resistor Set Frequency, Open LED Protection	Resistor Set Frequency, Open LED Protection
Frequency, kHz	1000	1000	1000	1000	1000	1000
Ishutdown, µA	0.1	0.1	0.1	0.1	0.1	0.1
Isupply, mA	9	9	9	9	9	9
Max Number of LEDs	2 x 10	2 x 10	2 x 10	2 x 10	2 x 10	2 x 10
Monolithic	yes	yes	yes	yes	yes	yes
Number of Outputs	2	2	2	2	2	2
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85
Switch Current, A	1.3	1.3	1.3	1.3	1.3	1.3
Synchronous	no	no	no	no	no	no
Topology	Boost, LED Driver	Boost, LED Driver	Boost, LED Driver	Boost, LED Driver	Boost, LED Driver	Boost, LED Driver
Vin Max, V	24	24	24	24	24	24
Vin Min, V	2.4	2.4	2.4	2.4	2.4	2.4
Vout Max, V	35.4	35.4	35.4	35.4	35.4	35.4

Plan ecológico

	LT3486EDHC#PBF	LT3486EDHC#TRPBF	LT3486EFE#PBF	LT3486EFE#TRPBF	LT3486IFE#PBF	LT3486IFE#TRPBF
RoHS	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente

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

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