International Rectifier has announced a new buck regulator control IC for driving LEDs at 600V, with full PWM dimming control.
The IRS2980 – the first entry in International Rectifier’s new series of LEDrivIR ICs – uses hysteretic average current control to precisely regulate the current across the full range.
The LED buck driver features low-side MOSFET drive with high-voltage internal regulator and high-side current sensing. The converter is compatible with electronic PWM dimming allowing for 0%-100% current control.
“In the rapidly growing solid state lighting sector, there is a need for low cost driver electronics to supply constant current output to high brightness, high power LEDs,” claimed International Rectifier’s Peter Green, the man in charge of the company’s LED group.
“The new IRS2980 offers improved performance at a lower system cost than alternative solutions for non-isolated LED driver applications,” Green concluded.
Pricing is set at $0.60 per IC in SO-8 packaging based on the purchase of 10,000-unit trays, with IR’s customers yet to announce retail pricing for makers who don’t need quite so many units.
A datasheet for the part is available as a PDF.