SP4422A Ver la hoja de datos (PDF) - Signal Processing Technologies

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Fabricante

SP4422A

Electroluminescent Lamp Driver

Signal Processing Technologies 

®

SP4422A

Electroluminescent Lamp Driver

s 2.2V-5.0V Battery Operation

s 50nA Typical Standby Current

s High Voltage Output 160 VPP typical

s Internal Oscillator

APPLICATIONS

s PDAs

s Cellular Phones

s Remote Controls

s Handheld Computers

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 signals, making it ideal

PP

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.

HON 1

VSS 2

COIL 3

EL2 4

SP4422

8 CAP 2

7 CAP 1

6 VDD

5 EL1

SP4422A Block Diagram

SP4422ADS/15

SP4422A Electroluminescent Lamp Driver

1

© Copyright 2000 Sipex Corporation

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