SP4424 Datasheet, PDF (7/12 Pages) Sipex Corporation – Electroluminescent Lamp Driver Dual Oscillators

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.
20.0
15.0
10.0
5.0
0.0
50
68
75
100
122
Coil Osc Cap (pF)
Coil Frequency vs. Coil Osc Cap Value
240
230
220
210
200
190
180
16.0 13.6
11.7
9.4
7.4
Coil Frequency (KHz)
Coil Frequency vs. E
OUT PP
6
5
4
3
2
1
0
50
68
75
100
122
Coil Cap (pF)
Coil Cap vs. Light Output
16
14
12
10
8
6
4
2
0
1 1.5
2
2.3
3
3.4
Lamp Size (Sq. in)
Lamp Size vs. Light Output
30
25
20
15
10
5
0
50
68
75
100
122
Coil Osc Cap (pF)
I_TOTAL vs. Coil Osc Cap
600
500
400
300
200
100
0
580
680 820 1000 1400 1800
Lamp Osc Cap (pF)
Lamp Frequency vs. Lamp Osc Cap Value
240
230
220
210
200
190
180
580
680
820 1000 1400
Lamp Osc Cap (nF)
Lamp Osc Cap vs. E
OUT PP
1800
250
200
150
100
50
0
1
1.5
2
2.3
3
3.4
Lamp Size (sq. in)
Lamp Size vs. E_{OUT PP}
SP4424DS/16
SP4424 Electroluminescent Lamp Driver
7
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