SP4428 Ver la hoja de datos (PDF) - Signal Processing Technologies

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SP4428

Electroluminescent Lamp Driver High Drive Capability for Low Voltage Applications

Signal Processing Technologies 

VPEAK=80V (typical)

EL1 output; 32 charge steps per half cycle

Figure 1. EL output voltage in discrete steps at EL1 output

16 coil pulses per half cycle; 94% duty cycle.

Figure 2. Voltage pulses released from the coil to the EL driver circuitry

EL1 Output

Figure 3. EL voltage waveforms from the EL1 and EL2 outputs

-EL2 Output

EL1 Output

VPP=160V

(typical)

-EL2 Output

Differential representation EL12.

Figure 4. EL differential output waveform of the EL1 and EL2 outputs

SP4428DS/16

SP4428 Electroluminescent Lamp Driver

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