Products, Materials & Tools | May 06, 2013

New 60V DC/DC LED Drivers Improve Efficiency, Light Quality and Operating Lifetime

The products ILD6070 and ILD6150 have a maximum current capability of up to 0.7A and 1.5A respectively. The ICs offer excellent power conversion efficiency up to 98%, benchmark current accuracy of +-3% across the load from 4.5 – 60V that helps assure constant light output, and first-in-the-industry adjustable over-temperature protection that protects LEDs from damage through overheating. The products are defined as general purpose LED driver ICs, mostly to be used in professional lighting systems, luminaires and electronic control gears.

“As the lighting industry’s transition to LED-based luminaires accelerates, with growth rates forecast at 30 percent across the next several years, manufacturers need to simultaneously innovate in engineering design while doing everything possible to gain competitive advantage in performance and cost,” said Dr. Christian Burrer, Head of Product Segment AC/DC and Lighting ICs at Infineon Technologies. “At Infineon, our goal is to provide a single point of supply for optimized and highly efficient power conversion and control elements of lighting system designs.”

The new drivers extend Infineon’s portfolio of switched-mode, buck (step-down) topology LED drivers for low voltage driven lighting applications, including indoor and outdoor systems in residential, commercial and industrial environments. They operate at up to 1 MHz switching frequency, which reduces manufactured cost and PCB space by reducing the size of external components needed in a design. Reduced size is also supported by the high efficiency and corresponding improved thermal performance of the drivers.

Benchmark features of the new devices include the following:
•    Typical DC/DC conversion efficiency up to 98 percent, which improves overall efficiency of a luminaire and reduces thermal load.
•    Current accuracy of 3 percent across the full 4.5V to 60V input range, which contributes to exceptional stability of light output.
•    The adjustable over temperature protection feature, which reduces light output when a threshold temperature is reached instead of turning off the light. With this feature, an LED light will always operate in a non-critical thermal range which leads to significantly longer lifetime.

Availability, Package, Pricing:
Samples of the ILD6070/ILD6150 drivers will be available in March, at a cost of USD 1.50 and USD 1.80, respectively. High volume pricing, above 10k quantity, of the DSO-8 packaged devices is approximately USD 0.80.

Designers working with Infineon LED driver ICs can access the “Infineon Light Desk” (www.infineon.com/lightdesk) design tool. The tool allows quick design and simulation of LED Driver circuitries for all types of LED applications, with optional redesign, and download of the design summary with specification, schematics and bill of material.

Further information about the complete Infineon portfolio of switch mode LED drivers can be found at http://www.infineon.com/lowcostleddriver, the
"LED Driver for Outdoor Lighting & Indoor Lighting"
website, the
ILD6070 Driver website und ILD 6150 Driver website.

About Infineon:
Infineon Technologies AG, Neubiberg, Germany, offers semiconductor and system solutions addressing three central challenges to modern society: energy efficiency, mobility, and security. In the 2012 fiscal year (ending September 30), the Company reported sales of Euro 3.9 billion with close to 26,700 employees worldwide. Infineon is listed on the Frankfurt Stock Exchange (ticker symbol: IFX) and in the USA on the over-the-counter market OTCQX International Premier (ticker symbol: IFNNY).

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