IMP803

IMP803

© 2000 IMP, Inc.

Electroluminescent Lamp Driver

5

+

–

GND

8

7

6

5

1

2

3

4

IMP803

2k

Ω

2M

Ω

750k

Ω

560

0.1

1N4148

L

10nF

Equivalent to

Note:

1. Murata part # LQH4N561K04 (DC resistance <14.5

Ω)

2. Larger values may be required depending upon supply impedance.

803_09.eps

OFF = 0V

0.1

µF

100V

Figure 1. 3.0V Application

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.

+

–

GND

8

7

6

5

1

2

3

4

IMP803

2k

Ω

2M

Ω

750k

Ω

560

0.1

1N4148

Note:

1. Murata part # LQH4N561K04 (DC resistance <14.5

Ω)

2. Larger values may be required depending upon supply impedance.

803_10.eps

0.1

µF

100V

OFF = 0V

L

Figure 2. 5.0V Application

Test and Application Circuit, 5.0V

Figure 2 shows a 5.0V input application driving a 6-square-inch

EL lamp.

Application Information