SP4425QDS/12

SP4425Q Electroluminescent Lamp Driver

© Copyright 1998 Sipex Corporation

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DESCRIPTION

The SP4425Q is a high voltage output DC-AC converter that can operate from a single 3.0

V

for driving electroluminescent lamps. The device features 100 nA (typical) standby current

for use in low power portable products. One external inductor is required to generate the

high voltage charge and one external capacitor is used to select the oscillator and lamp

frequencies. The SP4425Q is offered in an 8-pin

µSOIC package. For delivery in die form,

please consult the factory.

Electroluminescent Lamp Driver for

Low Noise Applications

s Low Noise Waveform

s Tunable Waveshaping

s DC to AC Inverter for EL Backlit

Display Panels

s Externally Adjustable Internal Oscillator

s Low Current Standby Mode

APPLICATIONS

s Cellular Phones

s Cordless Phones

s Handsets

s Backlit LCD Displays

SP4425Q Block Diagram

SP4425Q

SIGNAL PROCESSING EXCELLENCE

HON

D1

COIL

EL2

EL1

SP4425Q

8

7

4

3

2

1

5

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