General Description
The Supertex HV833 is a high voltage driver designed for driving EL lamps of up to 35nF (10-12in2). The input supply voltage range is from 1.8V to 6.5V. The device uses a single inductor and a minimum number of passive components. The nominal regulated output voltage that is applied to the EL lamp is ±90V. The chip can be enabled/disabled by connecting the resistor on RSW-OSC to VDD/ground.

Features
❏ 1.8V to 6.5V operating supply voltage
❏ DC to AC conversion
❏ Separately adjustable lamp and converter frequency
❏ Output voltage regulation
❏ Enable/disable function
❏ Patented output timing for high efficiency
❏ <100nA shutdown current
❏ Split supply capability
❏ LCD backlighting

Applications
❏ Portable Transceivers
❏ Remote Control Units
❏ Calculators
❏ PDAs
❏ Global Positioning Systems (GPS)