IXYS Subsidiary, Micronix, Develops Off-Line High Brightness LED Driver

IXYS Corp. announced that its subsidiary, Clare Micronix (Micronix), has developed a new high efficiency off-line, high brightness Light Emitting Diode (LED) driver: the MXHV9910. The driver can operate from a highly versatile input supply voltage of 8 to 450V, enabling a broad range of applications including flat panel display RGB backlighting, signage, decorative LED lighting, and incandescent lamp replacement.

The MXHV9910 utilizes a boost/buck converter topology that is able to drive from one to hundreds of LEDs in series and/or parallel combinations. LED drive current is regulated and peak current to the LEDs, is maintained through an external current sense resistor. LED dimming is controlled by either adjusting the duty cycle of the PWM input or by applying a small control voltage. The MXHV9910 is available in a RoHS compliant, 8-lead SOIC package in tubes or on tape and reel.

"The MXHV9910 is a low cost LED driver that utilizes our internal SOI high voltage integrated circuit (HVIC) technology which has better isolation capabilities than junction isolation technology," said Bob DeCaro, General Manager and Vice President of Micronix. "The application possibilities for this device are enormous and we are very excited about its worldwide potential. Micronix has a strong focus on HVIC products and LED drivers, and we are putting significant R & D into these product areas."