D372A Datasheet, PDF (8/12 Pages) List of Unclassifed Manufacturers – Electroluminescent Lamp Driver IC

V. Storage Capacitor (Cs) Selection
The Cs capacitor is used to store the energy transferred from the inductor. Capacitors with larger values have a larger
time constant and will store the energy for longer periods of time. The recommended Cs values range from 10nF to
47nF and are to be rated to at least 100V. Larger EL lamps typically require larger values of Cs. In general, increasing
the value of Cs will increase the RMS voltage and increase the brightness of an EL lamp. Typical waveforms for
varying Cs values for a 2.0 in² lamp are shown below.
Cs = 10nF
Cs = 22nF
Cs = 47nF
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