Allegro MicroSystems, Inc. Announces Four-Channel Constant Current LED Driver Family

Robust Design to Address Automotive LED Lighting Applications

October 14, 2010

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Worcester, MA – Allegro MicroSystems, Inc. announces a new family of constant current LED drivers designed to address the emerging requirements of the internal and external illumination applications within the automotive market. Allegro’s A6261/A6262/A6264 four-channel led driver devices have been fully qualified to the highest levels of automotive quality standards and robustness.

The devices each offer four channels of up to 100 mA LED current each, and can be paralleled for higher currents. They operate with a low dropout voltage to minimize power dissipation, and do not require any ballast resistors.

The user selected current is provided to four outputs with each output equally sharing the load. The A6261/62/64 family also features short to ground protection which disables the shorted channel allowing the others to continue to operate. Open LED on any channel is also detected. Similar to the Allegro A6260, the A6261/2/4 family also features a unique current foldback circuit, which uses the chip junction temperature in order to foldback the LED current and to protect the IC and LEDs (if mounted in proximity and on the same substrate).

Key automotive applications include (exterior) brake, turn, tail, and rear combination lighting (RCL) as well as (interior) dome, map, and puddle lighting. There is also a commercial grade version of the 6261 (suffix E) for consumer lighting applications. The A6261/62/64 devices are offered in the eMSOP-10 (LY) and eTSSOP-16 (LP) packages.



Sobre Allegro

Allegro Microsystems, LLC es una empresa líder en el desarrollo, fabricación y comercialización de semiconductores de alto rendimiento. Las soluciones innovadoras de Allegro son útiles para aplicaciones de alto crecimiento dentro del mercado de la automoción, con enfoque adicional en la automatización de oficinas, industrial y soluciones de comunicaciones/consumo. Allegro tiene su sede en Worcester, Massachusetts (EE.UU.) con centros de diseño, aplicaciones y de soporte de ventas ubicados en todo el mundo. Más información sobre Allegro se puede encontrar en www.allegromicro.com

Allegro Microsystems Europa, con sede en Chertsey, Reino Unido, es la oficina operativa de ventas y comercialización europea, y opera una red de representantes y distribuidores en toda Europa. Allegro cuenta con centros técnicos y de marketing en Heidelberg y Hinterzarten en Alemania. Allegro también dispone de un centro de ingeniería de diseño en el centro de Edimburgo, en Escocia y un centro técnico y de marketing en Annecy en Francia.


Contactos de marketing:

Allegro MicroSystems Europe Ltd.
Tel: +33 (0) 4 50512359
Fax: +33 (0) 4 505 12083 

Email: allegroeurope@allegromicro.com
www.allegromicro.com

 

 

 

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