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SP4416DS/06

SP4416 Electroluminescent Lamp Driver with 4-Level Light Intensity Selection Feature

© Copyright 1999 Sipex Corporation

DESCRIPTION

The SP4416 is a high voltage output DC-AC converter that operates from a 3.3V battery and

generates up to 220V

the AC output is used to generate light in an electroluminescent lamp. The SP4416 incorporates

an intensity select feature within the enable circuit so that the user can program the desired

light intensity. The SP4416 uses only two external components to generate light; the oscillator

capacitor and inductor. The ENLI pin is used for either an enable function or a step-up intensity

function. Four light intensities can be set by strobing the ENLI pin in a defined time period.

The SP4416 with the intensity function can be used in cellular phone applications, PDA's, and

other hand-held CPU controlled equipment.

s 4-Level, Software Selectable Light

Intensity Function

s 75%-80%-85%-100% Intensity

Level Options

s Extends Standby Time & Battery Life

when used in Conjunction with Power

Management Devices

s Requires only 2 External Components:

Oscillator Setting Capacitor and Inductor

s Low Power +3.3V Operation

s 100nA Standby Current

s Space-Saving 10-pin

µSOIC Package

APPLICATIONS

s Cellular Phones

s LCD Displays & Keypads

s PDAs

s Handheld Portable Electronic Devices

Electroluminescent Lamp Driver with

4-Level Light Intensity Selection Feature

SP4416

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SP4416EU

EL1

COIL

EL2

ENLI

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