SP4423NEB Ver la hoja de datos (PDF) - Signal Processing Technologies

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SP4423NEB

Electroluminescent lamp driver low power applications

Signal Processing Technologies 

VPEAK=80V (typical)

EL1 output; 16 charge steps per half cycle

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

16 coil pulses per half cycle; 74% 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

SP4423DS/14

SP4423Electroluminescent Lamp Driver

9

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