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