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Constant-Current LED Driver is AEC-Q100 qualified.

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Constant-Current LED Driver is AEC-Q100 qualified.
Constant-Current LED Driver is AEC-Q100 qualified.
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January 28, 2013 - Integrating high-side, N-channel MOSFET switch, Model A6213 provides constant-current output up to 3 A to drive high-power LEDs. Output voltage automatically adjusts to optimize constant-current supply to variety of LED array configurations including multiple LEDs in series. LED dimming is accomplished via direct logic input PWM signal. Housed in 8-pin narrow SOIC package, IC is suited for automotive map lights, DRL daytime running lights, fog lights, and underhood lamps.

Allegro MicroSystems, Inc. Announces New 3 A, Automotive Constant-Current LED Driver


(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Allegro Microsystems, Inc.
115 N.E. Cutoff, P.O. Box 15036
Worcester, MA, 01615
USA



Press release date: January 1, 2013

Full AEC-Q100 Automotive Qualification with Wide Input Voltage Range

Worcester, MA, - Allegro MicroSystems, Inc. adds a new AEC-Q100 qualified device to their existing automotive LED driver portfolio. The A6213 is a single IC, DC-DC, buck switching regulator that provides a constant-current output of up to 3 A to drive high-power LEDs. It integrates a high-side, N-channel, MOSFET switch and includes many new significant advantages in fault protection. This new device features a true automotive design and was developed to target many applications within this market such as map lights, DRL daytime running lights, rear fog lamps, fog lights, cargo and underhood lamps as well as puddle and emergency lights.

A true average LED drive current is output using a cycle-by-cycle, controlled on-time method. The LED drive current is user-configurable with an external current sense resistor. The output voltage automatically adjusts to optimize constant-current supply to a wide variety of LED array configurations including multiple LEDs in series. Series LEDs can be configured in a single string or parallel strings when using a balancing resistor. LED dimming is accomplished via a direct logic input pulse width modulation (PWM) signal such as an automotive courtesy signal. PWM dimming and enable signals can range from a logic level 1.8 volts to the input voltage level. The A6213 provides load supply and gate drive undervoltage lockout (UVLO) protection, thermal shutdown protection, and load overvoltage protection (OVP).

The device is provided in a compact 8-pin narrow SOIC package (suffix LJ) with exposed pad for enhanced thermal dissipation. It is lead (Pb) free, with 100% matte tin leadframe plating.  The A6213KLJTR-T is priced at $0.92 in quantities of 1,000.

Allegro MicroSystems, Inc. is a leader in developing, manufacturing and marketing high-performance semiconductors. Allegro's innovative solutions serve high-growth applications within the automotive market, with additional focus on office automation, industrial, and consumer/communications solutions. Allegro is headquartered in Worcester, Massachusetts (USA) with design, applications, and sales support centers located worldwide. Further information about Allegro can be found at www.allegromicro.com.

Contact information: Stephanie Fennelley, Allegro MicroSystems, 115 Northeast Cutoff, Worcester, MA 01606
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