SP4427DS/01

SP4427 Electroluminescent Lamp Driver

© Copyright 1997 Sipex Corporation

6

Number of coil pulses in 1 lamp cycle =

; 90% duty cycle.

EL1 Output

-EL2 Output

Vpeak=80V (typ)

EL1 output; charge steps per half cycle based on # of coil pulses per half cycle.

EL1 Output

-EL2 Output

Vpp=160V (typ)

coil freq.

lamp freq. (2)

Figure 1.

Figure 2.

Figure 3.

Figure 4.