SP4424DS/16

SP4424 Electroluminescent Lamp Driver

© Copyright 2000 Sipex Corporation

1

DESCRIPTION

The SP4424 is a high voltage output DC-AC converter that can operate from a single battery

supply voltage as low as 2.2V. The SP4424 is capable of supplying up to 220 V

PP

signals,

making it ideal for driving electroluminescent lamps. The device features 5

µA (maximum)

standby current, for use in low power portable products. An inductor is used to generate high

voltage pulses, and two external capacitors are used to select the inductor and the lamp

oscillator frequencies. The SP4424 is offered in both an 8-pin narrow SOIC and 8-pin micro

SOIC packages. For delivery in die form, please consult the factory.

s DC to AC Inverter for EL Backlit

Display Panels

s 2.2V - 5.0V Battery Operation

s Dual Oscillator Operation for

Application Flexibility

s Low Current Standby Mode

APPLICATIONS

s PDAs

s Cellular Phones

s Remote Controls

s Hand Held Computers

SP4424 Block Diagram

SP4424

Electroluminescent Lamp Driver

Dual Oscillators

HON

COIL

EL2

EL1

SP4424

8

7

4

3

2

1

5

6

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