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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.
3V Battery Operation s Space-Saving 8-pin MSOP package APPLICATIONS s Cellular Radios s Wireless Communication Products
DESCRIPTION The SP4438 device is a low noise, high
voltage output DC-AC inverter desi...