General Description

The Supertex HV824 is a high voltage driver designed to drive EL lamps with capacitive loads of 2nF to 15nF. The input supply voltage range is 1.0V to1.6V. The device uses a single inductor and a minimum number of passive components. Typical output voltage applied to the EL lamp is 120V to 150V peak-to-peak. The HV824 can be enabled/disabled by connecting the RSW resistor to VDD/ground. In die form, the device has an enable bar pad which enables the IC when it is at logic low.

Features

Processed with HVCMOS® technology

1.0V to 1.6V supply voltage

DC to AC conversion

Permits the use of high-resistance elastomeric lamp connectors

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

Portable Transceiver

Portable Instrumentation

Cellular Phones