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廬

SP4423

Electroluminescent Lamp Driver

Low Power Applications

s

2.2V-5.0V Battery Operation

s

50nA Maximum Standby Current

s

High Voltage Output 160 V

PP

typical

s

Internal Oscillator

APPLICATIONS

s

PDAs

s

Cellular Phones

s

Remote Controls

s

Hand Held Computers

DESCRIPTION

The

SP4423

is a high voltage output DC-AC converter that can operate from a 2.2V-6.0V

power supply. The

SP4423

is capable of supplying up to 200 V

PP

signals, making it ideal for

driving electroluminescent lamps. The device features 10nA (typical) standby current, for use

in low power portable products. An inductor is used to generate the high voltage, and an

external capacitor is used to select the oscillator frequency. The

SP4423

is offered in

an 8-pin narrow SOIC and 8-pin

碌SOIC

packages. For delivery in die form, please consult

the factory.

HON

V

SS

COIL

EL2

1

2

3

4

SP4423

8

7

6

5

CAP 2

CAP 1

V

DD

EL1

Block Diagram

SP4423DS/14

SP4423Electroluminescent Lamp Driver

漏 Copyright 2000 Sipex Corporation

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