General Description

The Supertex HV803 is a high-voltage driver designed for driving EL lamps of up to 30nF. EL lamps greater than 30nF can be driven for applications not requiring high brightness. The input supply voltage range is from 2.4 to 9.5V. 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 by connecting the resistors on RSW-osc and REL-osc to VDD and disabled when connected to GND.

Features

□ Processed with HVCMOS® technology

□ 2.4V to 9.5V operating supply voltage

□ DC to AC conversion

□ 180V peak-to-peak typical output voltage

□ Large output load capability typically 30nF

□ Short circuit protection on outputs

□ Adjustable output lamp frequency to control lamp color, lamp life, and power consumption

□ Adjustable converter frequency to eliminate harmonics and optimize power consumption

□ Enable/disable function

□ Low current draw under no load condition

Applications

□ Pagers

□ Cellular phones

□ Electronic personal organizers

□ GPS units

□ Handheld personal computers

□ Portable instrumentation