LED Drivers suit retail and architectural lighting systems.
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Press Release Summary:
With 4.5-29 V operating range, Models XRP7603 and XRP7604 are capable of driving high brightness LEDs up to 0.5 and 1 A, respectively. Units operate at frequency of 1.2 MHz with integrated loop compensation, and feature 200 mV feedback reference voltage, which minimizes power dissipation while maximizing efficiency up to 95%. Housed in thermally enhanced SO-8 packages, drivers convert from 29 V to 4 V across LED with guaranteed minimum on-time of 100 ns.
Original Press Release:
Exar Provides New Scalable Evolutionary Solutions for Driving High Power Light Emitting Diodes (LEDs)
Innovative XRP7603 and XRP7604 Integrated Step-down LED Drivers are Ideal for Retail and Architectural Lighting Systems
FREMONT, Calif., March 30 /-- Exar Corporation (NASDAQ:EXAR) has released the XRP7603 and XRP7604 LED drivers capable of driving high power, high brightness LEDs up to 0.5Amp and 1Amp respectively. These devices complement and are pin-to-pin compatible with Exar's SP7600 rated at 2Amp. With a 4.5V to 29V operating range these LED drivers can support most retail and architectural lighting systems which typically use 12V or 24V power sources. New consumer electronics devices can also find a use for these high current LED drivers, such as the latest LED compact projectors.
"The XRP7603 and XRP7604 are designed to meet the needs of the latest high current LEDs," said David Matteucci, vice president, Power Management Products. "Leveraging the success of Exar's SP7600 announced in February 2008, the XRP7603 and XRP7604 provide system architects and designers with a single scalable design solution capable of seamlessly supporting many LED lighting applications from 500mA to 2A."
Key Product Features
Operating at a frequency of 1.2MHz with integrated loop compensation, Exar's family of high power step-down LED drivers fit within a minimal solution footprint -- merely the combined size of the high brightness LED and its heatsink. A low 200mV feedback reference voltage reduces the power dissipation in the current sense resistor while maximizing efficiency at up to 95%. Conversions from 29V can be a challenge for many buck regulators; however, these LED drivers easily convert from 29V to the 4V across the LED with a guaranteed minimum on-time of 100ns. Dynamic brightness control is achieved through a PWM or analog dimming scheme and a programmable over current and under voltage lock-out protection insures safe operation under abnormal operating conditions.
Power Management Products
Highly reliable, accurate, power management is a critical part of any technology system. Exar has a broad array of industry-proven power management solutions. Exar's families of high current single chip PowerBlox(TM) step-down regulators and high power LED drivers demonstrate innovative solutions for industry standard POLA module replacements and high performance general lighting.
Prices, Packages, Availability and Additional Information
Samples of the XRP7603 and XRP7604 are available now. Offered in a thermally enhanced SO-8 package operating over the -40ºC to +85ºC temperature range, the XRP7603 and XRP7604 are respectively priced at $0.79 and $0.99 in 1K piece quantities.
Additional information on the XRP7603 product can be found at http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XRP7603.
Additional information on the XRP7604 product can be found at http://www.exar.com/Common/Content/ProductDetails.aspx?ID=XRP7604.
Additional information on these and other power products can be found at http://www.exar.com/Common/Content/Product.aspx?Parent=2&ID=116.
About Exar
Exar Corporation is Powering Connectivity by delivering highly differentiated silicon solutions empowering products to connect. With distinctive knowledge in analog and digital technologies, Exar enables a wide array of applications such as portable devices, home media gateways, communications systems, and industrial automation equipment. Exar has locations worldwide providing real-time system-level support to drive rapid product innovation. For more information about Exar visit: www.exar.com/.
CONTACT: Greg Kaufman, Marketing Communications, +1-510-668-7000, for Exar Corporation
Web Site: http://www.exar.com/
