Two new 60V DC/DC LED drivers were recently introduced by Infineon Technologies, offering a range of important features. These include good power conversion efficiency, current accuracy that helps assure constant light output; and adjustable over-temperature protection that protects light elements from damage through overheating.
The new ILD6070/ILD6150 drivers are aimed at designers producing multiple products using the same drivers, based on a wide input voltage range (4.5V to 60V), adjustable output current of up to either 0.7A or 1.5A, and support of digital or analogue dimming inputs, with a maximum dimming contract ratio as high as 3000:1.
With these 60V devices it is possible to support as many as 18 LEDs in a light string, compared to a maximum of twelve LEDs in typically available 40V devices.
Suitable applications for these devices include indoor and outdoor systems in residential, commercial and industrial environments amongst others.
These devices operate at up to 1MHz 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.
Additional features of the new devices include DC/DC conversion efficiency up to 98 percent, which improves overall efficiency of a luminaire and reduces thermal load. Current accuracy of 3 percent features across the full 4.5V to 60V input range, which contributes to good stability of light output.
Infineon Technologies
