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| SP4424 Datasheet, PDF (1/12 Pages) Sipex Corporation – Electroluminescent Lamp Driver Dual Oscillators | |||
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SP4424
Electroluminescent Lamp Driver
Dual Oscillators
s DC to AC Inverter for EL Backlit
Display Panels
s 2.2V - 5.0V Battery Operation
s Dual Oscillator Operation for
Application Flexibility
s Low Current Standby Mode
APPLICATIONS
s PDAs
s Cellular Phones
s Remote Controls
s Hand Held Computers
DESCRIPTION
The SP4424 is a high voltage output DC-AC converter that can operate from a single battery
supply voltage as low as 2.2V. The SP4424 is capable of supplying up to 220 VPP signals,
making it ideal for driving electroluminescent lamps. The device features 5µA (maximum)
standby current, for use in low power portable products. An inductor is used to generate high
voltage pulses, and two external capacitors are used to select the inductor and the lamp
oscillator frequencies. The SP4424 is offered in both an 8-pin narrow SOIC and 8-pin micro
SOIC packages. For delivery in die form, please consult the factory.
CCOIL 1
VSS 2
COIL 3
EL1 4
SP4424
8 CLAMP
7 HON
6 VDD
5 EL2
SP4424 Block Diagram
SP4424DS/16
SP4424 Electroluminescent Lamp Driver
1
© Copyright 2000 Sipex Corporation
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