(China (Mainland))
Product Summary
The SP4438EU 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. The output waveform of the SP4438EU device is ideal for cell phone applications requiring low acoustic noise performance. Applications are (1)Cellular radios; (2)Wireless communication products.
Parametrics
SP4438EU absolute maximum ratings: (1)Supply Voltage (VDD to VSS): -0.3V, +5V; (2)Operating Temperature: -40°C to +85°C; (3)Storage Temperature: -65°C to +150°C; (4)Power Dissipation Per Package 8-pin MSOP (derate 4.85mW/OC above +70OC): 400mW.
Features
SP4438EU features: (1)Patent Pending Output Waveshaping; (2)Waveshaped Output Optimized For Low Acoustic Noise And Maximum Efficiency; (3)Reduced Supply Current And Standby Current; (4)Up to15cd/m2 For Cell Phone Sized EL Lamps (2 to 3 sq. in.); (5)Waveshaped Output And Low Frequency Operation Minimize Stress On EL Lamp To Extend Its Lifetime; (6)Uses 820μH, Sub-2mm Coils; (7)Gradual Rising And Falling Edges Minimizes EMI; (8)+2.7V To +3.3V Battery Operation; (9)Space-Saving 8-pin MSOP package.
Diagrams
