Sharp develops and will introduce LED controller for indoor lighting

Dec 22nd, 2010
Date Announced: 22 Dec 2010

Osaka - Sharp Corporation has developed and will introduce the LR56001 LED controller for LED ceiling lights, allowing users to adjust the brightness and color of three types of LEDs: cool white, warm white, and night light.

The demand of long-life, energy-saving LED lighting is growing and its use is expected to expand for indoor lighting fixtures, such as ceiling lights and light bulbs.

The LR56001 LED controller can independently control up to three types of LED lights. This allows the user to choose among three types of ceiling lights - cool white, warm white and night light - with each at the desired level of brightness. By adjusting the brightness of cool white and warm white lights the user is able to change the color emitted, anywhere from a warm red color to a cool light blue color. Further, the LR56001 has a built-in chopper circuit(1), which prevents power loss even when the forward voltage(2) of the three types of LED differs.

With this entry into the market for LED controllers for indoor lighting, Sharp will bring improved convenience and energy efficiency to LED lighting.

Product name LED controller for indoor lighting

Model name: LR56001
Sample price: 450 yen
Sample availability date: December 22, 2010
Mass production date: January 31, 2011
Monthly production: 100,000 units

Major Features

1. A three-channel independent control allows brightness and color adjustments to be made for three types of LED ceiling lights (cool white, warm white, and night lights).
2. Built-in chopper circuit contributes to greater energy efficiency for LED lights.

Specifications

Product name: LED controller for indoor lighting
Model name: LR56001
Output channels: 3
Operating voltage: Core: 5.0 V +/- 0.5
I/O: 3.3 V +/- 0.3 / 5.0 V +/- 0.5
Consumption current: TYP. 12 mA
Operating temperature: -40 C to 85 C

(1) A control method that arbitrarily creates effective values of current and voltage by repeatedly turning on and off the current and voltage.
(2) The voltage drop that occurs when electricity flows in the forward direction (from the anode to the cathode) of a diode such as in an LED.

About Sharp

Sharp Corporation (TSE: 6753) is a worldwide developer of innovative products and core technologies that play a key role in shaping the future of electronics. As a leader in liquid crystal displays (LCDs) and digital technologies, Sharp offers one of the broadest and most advanced lines of consumer electronics, information products and electronic components, while also creating new network businesses. For more information, please visit www.sharp.co.jp.

Contact
Corporate Public Relations Division Sharp Corporation Phone: +81-6-6625-3006 (Osaka) Phone: +81-3-3260-1870 (Tokyo)

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