SP4423CX PDF Datasheet
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Description
This is Electroluminescent Lamp Driver Low Power Applications. ®
SP4423
Electroluminescent Lamp Driver Low Power Applications
s 2.2V-5.0V Battery Operation s 50nA Maximum Standby Current s High Voltage Output 160 VPP 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 VPP 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 SOIC packages. For delivery in die form, please consult the factory.
HON VSS COIL EL2
1 2 3 4 SP4423
8 7 6 5
CAP 2 CAP 1 VDD EL1
Block Diagram
SP4423DS, 14 SP4423Electroluminescent Lamp Driver Copyright 2000 Sipex Corporation
1
ABSOL.