SP4425 Datasheet, PDF (9/14 Pages) Sipex Corporation – Electroluminescent Lamp Driver Low Voltage Applications

The following performance curves are intended to give the designer a relative scale from which to optimize
specific applications. Absolute measurements may vary depending upon the brand of components chosen.
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
1
Light Output
1.1
1.2
1.3
1.4
1.5
V_DD (Volts)
Lamp = 1.5 sq. in., C1 = 0.1µF, C2 = 180pF, D1 = D1N4148
Inductors
µH/DCR
A 470/4
B 470/11
C 470/4
D 470/2.3
E 470/3.4
380
360
340
320
300
280
260
240
220
200
1
Lamp Frequency
1.1
1.2
1.3
1.4
V_DD (Volts)
Inductors
µH/DCR
A 470/4
B 470/11
C 470/4
1.5
D 470/2.3
E 470/3.4
Lamp = 1.5 sq. in., C1 = 0.1µF, C2 = 180pF, D1 = D1N4148
SP4425DS/20
SP4425 Electroluminescent Lamp Driver
9
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