SP4422ADS/15

SP4422A Electroluminescent Lamp Driver

© Copyright 2000 Sipex Corporation

1

s 2.2V-5.0V Battery Operation

s 50nA Typical Standby Current

s High Voltage Output 160 V

s Internal Oscillator

APPLICATIONS

s PDAs

s Cellular Phones

s Remote Controls

s Handheld Computers

SP4422A

Electroluminescent Lamp Driver

DESCRIPTION

The SP4422A is a high voltage output DC-AC converter that can operate from a 2.2V-5.0V

power supply. The SP4422A is capable of supplying up to 220 V

for driving electroluminescent lamps. The device features 50 nA (typical) standby current, for

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

voltage, and one external capacitor is used to select the oscillator frequency. The SP4422A

is offered in an 8-pin narrow and 8-pin micro SOIC packages. For delivery in die form, please

consult the factory.

SP4422A Block Diagram

HON

CAP 1

COIL

EL2

EL1

SP4422

8

7

4

3

2

1

5

6

CAP 2

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