SP4425 Datasheet, PDF (8/14 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.
V_LAMP Peak
60
65
55
50
45
40
35
30
1 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.4 1.45 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
I_TOTAL
50
45
40
35
30
25
20
1
1.1
1.2
1.3
1.4
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
1.5
D 470/2.3
E 470/3.4
SP4425DS/20
SP4425 Electroluminescent Lamp Driver
8
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