Micrel Boosts Power Efficiency and High Current Density With High Accuracy Six Channel Linear LED Drivers
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SAN JOSE, CA, Jun 02 (MARKET WIRE) --
Micrel, Inc. (NASDAQ: MCRL), an industry leader in analog, high bandwidth
communications and Ethernet IC solutions, today unveiled a pair of new
linear WLED drivers aimed at further expanding its portfolio of lighting
products. The MIC4811/MIC4812 are six channel, constant-current sink LED
drivers targeting billboard, marquee, instrument and other large,
general-purpose LED displays. The MIC4811/MIC4812 are currently available
in volume quantities with pricing starting at $0.65 and $0.68
respectively for 1Ku quantities. Samples can be ordered on line at:
www.micrel.com/ProductList.do.
"The MIC4811/MIC4812 LED channels can operate with an output voltage on
the LED pins as low as 0.19V which enables more power-efficient designs,"
noted Doyle Slack, senior marketing director for Analog. "With its
Dynamic Average Matching architecture, both the MIC4811 and the MIC4812
achieve industry-leading LED channel matching of 1 percent across the
entire dimming range."
The MIC4811/MIC4812 are high efficiency linear White LED (WLED) drivers
designed to drive up to six high current WLEDs for signage lighting. The
MIC4811/MIC4812 provide the highest possible efficiency at low source
voltages as this architecture has no switching losses present in
traditional charge pumps or inductive boost circuits. These linear
drivers maintain constant current for up to six WLEDs and feature a
typical dropout of 100mV at 50mA (MIC4811) and 190mV at 100mA (MIC4812).
The MIC4811/MIC4812 feature Dynamic Average Matching(TM) (DAM(TM)) which
is specifically designed to provide optimum matching across all WLEDs.
The high accuracy (+/-1% typical) current regulated WLED channels ensure
uniform display illumination under all conditions. The brightness is
controlled through an Ultra Fast PWM(TM) interface operating down to less
than 1 percent duty cycle. The MIC4811/MIC4812 are available in an 10-pin
MSOP package and a 10-pin MSOP exposed pad package respectively with a
junction temperature range of -40degC to +125degC. All supporting
documentation including the datasheets can be found on Micrel's website
at: http://www.micrel.com.
About Micrel, Inc.
Micrel, Inc. is a leading global manufacturer of IC
solutions for the worldwide analog, Ethernet and high bandwidth markets.
The Company's products include advanced mixed-signal, analog and power
semiconductors; high performance communication, clock management,
Ethernet switch and physical layer transceiver ICs. Company customers
include leading manufacturers of enterprise, consumer, industrial,
mobile, telecommunications, automotive, and computer products.
Corporation headquarters and state-of-the-art wafer fabrication
facilities are located in San Jose, CA, with regional sales and support
offices and advanced technology design centers situated throughout the
Americas, Europe and Asia. In addition, the Company maintains an
extensive network of distributors and reps worldwide. Web:
http://www.micrel.com
Note: Dynamic Average Matching and Ultra Fast PWM are trademarks of
Micrel, Inc.
Contact:
Julieanne DiBene
Marketing Communications
1-408-474-1276
Julie.DiBene@Micrel.com
Copyright 2011, Market Wire, All rights reserved.
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