Supertex Dimmable EL Driver Minimizes Noise

Groomed for dual-keypad backlighting in cellular phones, the HV862 dimmable, dual EL lamp driver claims to minimize lamp noise. The IC features independent input controls for lamp selection, a 180 Vp-p output voltage, and adjustable output-voltage regulation for dimming. It resides in a 3 mm x 3 mm package and requires just a single inductor and a minimum number of passive components for operation. Available in a RoHS-compliant QFN-16 package (HV862K7-G), pricing is $1.25 each/1,000. SUPERTEX INC., Sunnyvale, CA. (408) 222-8888.