HV857

Supertex inc. HV857 Low Noise, High Voltage EL Lamp Driver IC Features ►►Patented audible noise reduction ►►Patented lamp aging compensation ►►190 VPP output voltage for higher brightness ►►Patented output timing for high efficiency ►►Single cell lithium ion compatible ►►150nA shutdown current ►►Wide input voltage range 1.8 to 5.0V ►►Separately adjustable lamp and converter frequencies ►►Output voltage regulation ►►Split supply capability ►►Available in 8-Lead MSOP and DFN packages Applications ►► LCD backlighting ►► Mobile Cellular Phone ►► PDAs ►► Handheld wireless communication products ►► Global Positioning Systems (GPS) General Description The Supertex HV857 is a high voltage driver designed for driving Electroluminescent (EL) lamps of up to 5.0 square inches. The input supply voltage range is from 1.8 to 5.0V. The device uses a single inductor and a minimum number of passive components. The nominal regulated outp...