General Description

The Supertex HV832 is a high voltage driver designed for driving two EL lamps with a combined area of 3.5 square inches. The input supply voltage range is from 2.0V to 5.0V. The device is designed to reduce the amount of audible noise emitted by the lamp. 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.

Features

❏ 8-pin dual EL driver IC

❏ Input control for lamp selection

❏ Split supply capability

❏ Patented output timing

❏ One minature inductor to power both lamps

❏ 150nA shutdown current

❏ Wide input voltage range (2.0V to 5.0V)

❏ Output voltage regulation

❏ No SCR output

Applications

❏ Dual display cell phones

❏ Keypad and LCD backlighting

❏ Dual segment lamps

❏ Handheld wireless communication devices