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Home > Components & Tools > Electronics & Smart Controls > ON Semiconductor’s New Integrated LED Driver Improves System Efficiency
Products, Materials + Tools | Jul 09, 2010

ON Semiconductor’s New Integrated LED Driver Improves System Efficiency

ON Semiconductor (Nasdaq: ONNN) a premier supplier of high performance, energy efficient silicon solutions for green electronics today announced the further expansion of its solutions for LED lighting with the introduction of an offline LED driver that integrates power factor correction (PFC) and isolated step-down AC-DC power conversion in a single stage. By eliminating the need for a dedicated PFC boost stage, the NCL30001 offers a reduced component count, lower cost solution that supports higher overall system efficiency in LED power supplies for applications such as LED-based street, low bay, wall packs, and architectural lighting.

Ideal for designs with power requirements of between 40 W and 150 W, the NCL30001 is designed to operate in continuous conduction mode (CCM) and can be configured as either a constant current or fixed output voltage driver. With an adjustable operating frequency of 20 kHz to 250 kHz and a multi-function latch-off pin able to implement an overtemperature shutdown circuit, the SOIC-16 packaged controller offers circuit designers a high degree of flexibility.

Features:
• Voltage Feedforward Improves Loop Response
• Frequency Jittering Reduces EMI Signature
• Proprietary Soft?Skip at Light Loads Reduces Acoustic Noise
• Brown Out Detector
• Internal 160 ms Fault Timer
• Independent Latch?Off Input Facilitates Implementation of  Overvoltage and Overtemperature Fault Detectors
• Average Current Mode Control (ACMC), Fixed Frequency Operation
• High Accuracy Multiplier Reduces Input Line Harmonics
• Adjustable Operating Frequency from 20 kHz to 250 kHz
• These Devices are Pb?Free and are RoHS Compliant

Typical Applications:
• LED Street Lights
• Low Bay LED Lighting
• High Power LED Drivers
• Architectural LED Lighting

Further features of the NCL30001 controller’s specification include a high voltage start-up circuit. An isolated single stage power factor corrected LED Driver evaluation board is available for this device that is intended for applications ranging from 40 W – 100 W that require a direct constant current output, The current is adjustable from 0.7 A to 1.5 A. to support a wider range of high power high brightness LEDs.

“With growth in the popularity and the rapidly increasing number of LED-based lighting designs on the market, the need for highly efficient, cost effective, integrated system management devices is greater than ever,” said Christophe Warin, AC-DC Business Unit Manager, ON Semiconductor. “The NCL30001 meets these requirements in full, and provides engineers with a flexible single-stage topology LED driver ideal for use in their new LED lighting products. This device is a strong example of the targeted lighting solutions ON Semiconductor is developing to meet our customers’ needs.”

The NCL30001 is available in a 16-lead SOIC package and priced at $1.05 per unit in 10,000 unit quantities.

About ON Semiconductor:
ON Semiconductor operates a world-class, value-added supply chain and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions. For more information, visit http://www.onsemi.com.

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