IMP560
Test and Application Circuit, 3.0V
Figure 1 shows the IMP560 configured to drive a 3-square-inch
EL lamp, represented as a 10nF capacitor.
Application Information
ON = VDD
OFF = 0V
2MΩ
560µH1 L
750kΩ
1 VDD
REL-OSC 8
2 RSW-OSC
VA 7
+
VIN = 3.0V –
1N4148
0.1µF2
0.1µF
100V
3 CS
4 LX
VB 6
GND 5
IMP560
Note:
1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω)
2. Larger values may be required depending upon supply impedance.
Figure 1. 3.0V Application
Test and Application Circuit, 5.0V
Figure 2 shows a 5.0V input application driving a 6-square-inch
EL lamp.
ON = VDD
OFF = 0V
2MΩ
10nF
Equivalent to
3 in2 lamp
560_09.eps
+
VIN = 5.0V –
560µH1 L
750kΩ
1N4148
0.1µF2
0.1µF
100V
1 VDD
REL-OSC 8
2 RSW-OSC
VA 7
3 CS
VB 6
4 LX
GND 5
IMP560
Note:
1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω)
2. Larger values may be required depending upon supply impedance.
Figure 2. 5.0V Application
6 in2 lamp
560_10.eps
© 2000 IMP, Inc.
Electroluminescent Lamp Driver
5