TAIYO YUDEN Offers New DC-AC Inverter For Backlighting Applications

TAIYO YUDEN (U.S.A.) INC., announced the LS6D0812A-RH – the latest addition to its extensive line-up of compact, low-profile dc-ac inverters for driving cold-cathode fluorescent lamps (CCFL) in Liquid Crystal Display (LCD) back-lighting applications.

The high-efficiency LS6D0812A-RH is designed specifically for use with 10-15" industrial-grade LCD panels widely used in medical electronics, machine tools, digital signage, point-of-sale/kiosks, touch-screen and test & measurement equipment applications. The device provides dual LCD panel capability, and features brightness/backlight on-off control and a useful 5V (typ.) alarm output if the inverter detects a CCFL open condition in the LCD display systems.

The RoHS-compliant LS6D0812A-RH LCD backlight driver provides an input of 12Vdc and an output current of 3-6mArms per lamp. The device’s CCFL driving circuit includes a self-oscillating dc-ac converter, known as a Royer circuit, which minimizes EMI compared to other control methods.

Total device power output is 3.5W per lamp, or 7W total. Physically, the LS6D0812A-RH measures only 6.02" (153mm) L x 0.85" (21.5mm) W x 0.39" (10mm) H. Other (typical) specifications include 1500Vrms start-up voltage, 1A maximum input current and wide operating and storage temperature ranges of -0 to +70°C and -30 to +85°C, respectively.

The units are priced at $40.00 each in OEM quantities, with a 12 week ARO for large OEM orders.