Supertex HV861
HV861 is a low noise, dimmable, high voltage, dual EL Lamp driver designed for driving two electroluminescent (EL) Lamps with a combined area of 5.0 square inches. The input supply voltage range is from 2.5V to 4.5V.FEATURES
► Adjustable output regulation for dimming ► Lamp fade-in/fade-out capability ► Low audible noise ► 180VPP output voltage for higher brightness ► 1.5V enable input logic high ► Single cell lithium ion compatible ► One miniature inductor to power both lamps ► Separately adjustable lamp and converter frequencies ► Split supply capability ► 16-Lead QFN packageAPPLICATIONS
► Dual display cellular phones ► Keypad and LCD backlighting ► PDAs ► Handheld wireless communication products ► Global Positioning Systems (GPS)GENERAL DESCRIPTION
The Supertex Enable input logic high can go as low as 1.5V, which allows logic interface operating from typical 1.8V supplies. The device is