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Optoelectronics/Displays??

Isolated driver modules cater to high-intensity LEDs

Posted: 06 Jun 2008 ?? ?Print Version ?Bookmark and Share

Keywords:LEDs? driver modules isolated? circuits constant current?

Rohm Electronics has introduced what it claims the industry's first AC/DC-isolated LED driver modules utilizing constant-current circuits optimized for driving LEDs.

The BP58xx series integrates all required LED-driving control circuits, switching elements, isolation transformers and constant-current circuits into a single SIP package. These features enable the BP58xx series to increase power-conversion efficiency in a broad range of illumination/lighting applications, including theater, landscape, residential, commercial and emergency lighting.

Key features of the BP58xx series include constant-current output optimized for driving LEDs (current set via external resistor); minimal ambient temperature-based, constant current fluctuation (1 percent accuracy); high power-conversion efficiency of 85 percent; isolated AC/DC circuit; and a compact SIP11 package with built-in switching transformer (32.9mm x 25.0mm x 15.1mm max.).

These RoHS-compliant modules offer pin-compatibility with a wide range of products to enable easy modification based on each specification as well as adjustable constant-current isolation of 150-1000mA to enhance design flexibility.

Samples are available now. Price is $4.50 for 25,000-unit quantities.

- Ismini Scouras
eeProductCenter





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