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SP4438 - Ultra-Quiet Electroluminescent Lamp Driver For Cellular Phone Applications

General Description

The SP4438 device is a low noise, high voltage output DC-AC inverter designed to drive electroluminescent lamps to backlight liquid crystal display and keypads used in cellular phones, cordless phones, 2-way radios, and other wireless communication products.

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Datasheet Details

Part number SP4438
Manufacturer Sipex
File Size 223.68 KB
Description Ultra-Quiet Electroluminescent Lamp Driver For Cellular Phone Applications
Datasheet download datasheet SP4438 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® SP4438 Ultra-Quiet Electroluminescent Lamp Driver For Cellular Phone Applications s Patent Pending Output Waveshaping s Waveshaped Output Optimized For Low Acoustic Noise And Maximum Efficiency s Reduced Supply Current And Standby Current s Up to15cd/m2 For Cell Phone Sized EL Lamps (2 to 3 sq. in.) s Waveshaped Output And Low Frequency Operation Minimize Stress On EL Lamp To Extend Its Lifetime s Uses 820µH, Sub-2mm Coils s Gradual Rising And Falling Edges Minimizes EMI s +2.7V To +3.