Ricoh's New R1580 Constant Current LED Driver Controller Now at Mouser Electronics

January 31, 2017 - Mouser Electronics, Inc., the industry's leading New Product Introduction (NPI) distributor with the widest selection of semiconductors and electronic components, is now stocking the R1580 constant current LED driver controller from Ricoh Electronic Devices Company. Unlike other LED drivers that use pulse-width modulation (PWM) dimming, the R1580N can provide a smooth flicker-free dimming operation using minimal external components that enable linear dimming. The new controller is ideal for a wide range of applications, including residential and office lighting, industrial lighting for machine vision purposes, automotive lighting and art and museum lighting.

Ricoh's R1580 constant current LED driver controller, available from Mouser Electronics, consists of a linear dimming controller using a PWM input signal, a thermal shutdown circuit, and an undervoltage lockout circuit in addition to the basic constant-current control circuits. Engineers can configure a flicker-free, wide-dimming, constant-current LED driver by adding an N-channel MOSFET, a current sensing resistor, and capacitors to the R1580N.

The R1580 device's constant-current source eliminates changes in current due to variations in forward voltage, resulting in a constant LED brightness. The input power supply regulates the voltage across a current-sense resistor, then the power supply reference voltage and the value of the current-sense resistor determine the LED current. The R1580N eliminates flickering and electromagnetic interference (EMI) noise issues by internally converting the PWM input signal connected to the DIM pin into a linear DC voltage applied to the gate of the LED driver MOSFET.

Unlike conventional products can dim down to only 5 percent, the R1580 device comes in two versions with a dimming range from 100 percent to 1.0 percent and a version dimming to 0.5 percent, which can extend the color temperature range in RGB LED configurations. The R1580 is available in a 6-pin SOT-23-6 package for applications that require a small footprint solution when board space is limited.

To learn more, visit http://www.mouser.com/new/ricoh-electronics/ricoh-r1580n-controllers/.

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About Mouser
Mouser Electronics, a subsidiary of TTI, Inc., is part of Warren Buffett's Berkshire Hathaway family of companies. Mouser is an award-winning, authorized semiconductor and electronic component distributor focused on rapid New Product Introductions from its manufacturing partners for electronic design engineers and buyers. The global distributor's website, Mouser.com, is available in multiple languages and currencies and features more than 4 million products from more than 600 manufacturers. Mouser offers 22 support locations around the world to provide best-in-class customer service and ships globally to over 500,000 customers in 170 countries from its 750,000 sq. ft. state-of-the-art facility south of Dallas, Texas. For more information, visit www.mouser.com.

About Ricoh Electronic Devices Company
Ricoh Electronic Devices Company is an independent company belonging to the Ricoh Company, a global technology company specializing in office automation equipment, production print solutions, document management systems and IT services. Ricoh Electronic Devices Company is responsible for developing, manufacturing and selling semiconductor products to general electronics manufacturers worldwide. The company owns its strong market position thanks to achievements in the consumer applications market but are currently rapidly expanding into new markets for industrial, automotive, IoT and LED lighting applications.

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