imp803 ETC-unknow, imp803 Datasheet - Page 5

• Manufacturer Part Number: imp803
• Description: High-voltage Lamp Driver
• Manufacturer: ETC-unknow

Test and Application Circuit, 3.0V
Figure 1 shows the IMP803 configured to drive a 3-square-inch
EL lamp, represented as a 10nF capacitor. With a 3.0V input, the
EL lamp will be driven to moderate brightness.
Test and Application Circuit, 5.0V
Figure 2 shows a 5.0V input application driving a 6-square-inch
EL lamp.
© 2000 IMP, Inc.
V
IN
V
IN
= 3.0V
ON = V
OFF = 0V
= 5.0V
ON = V
OFF = 0V
Note:
1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω )
2. Larger values may be required depending upon supply impedance.
Note:
1. Murata part # LQH4N561K04 (DC resistance <14.5 Ω )
2. Larger values may be required depending upon supply impedance.
+
–
DD
+
–
DD
560µH
0.1µF
560µH
0.1µF
1
2
1
2
1N4148
L
1N4148
L
C
C
S
S
Figure 1. 3.0V Application
Figure 2. 5.0V Application
750kΩ
0.1µF
100V
R
750kΩ
0.1µF
100V
SW
R
SW
1
2
3
4
1
2
3
4
V
R
C
L
X
DD
SW-OSC
S
V
R
C
L
X
DD
SW-OSC
S
IMP803
IMP803
Electroluminescent Lamp Driver
2MΩ
R
2MΩ
R
EL
R
EL
EL-OSC
R
GND
EL-OSC
GND
V
V
A
B
V
V
A
B
8
7
6
5
8
7
6
5
Application Information
2kΩ
R
2kΩ
CL
R
CL
10nF
Equivalent to
3 in
I M P 8 0 3
6 in
I M P 8 0 3
803_09.eps
2
803_10.eps
lamp
2
lamp
5