SP4422A Datasheet, PDF (7/13 Pages) Sipex Corporation – Electroluminescent Lamp Driver

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.
800
600
400
200
0
47 68
100 200 250
C_OSC (pf)
300 390
Lamp Frequency vs. C_OSC
V_DD= 3.0V; Coil= 5mH, 18Ω; Load=10nF
40
30
20
10
0
47 68
100 200 250
C_OSC (pf)
300 390
I_TOTAL vs. C_osc
V_DD= 3.0V; Coil= 5mH, 18Ω; Load=10nF
250
200
150
100
50
0
47 68
100 200 250
C_OSC (pf)
300 390
Output Voltage vs. C_OSC
V_DD= 3.0V; Coil= 5mH, 18Ω; Load=10nF
50
40
30
20
10
0
33 56
82 150 200 250 300 390
C_OSC (pf)
Luminance vs. C_OSC
V_DD= 3.0V; Coil= 5mH, 18Ω; Load=10nF
20
15
10
5
0
2.2
3
4
5
Supply Voltage (Volts)
Luminance vs. V_DD=Vcoil
V_DD=3.0V; Coil=5mH, 18Ω; Load=10nF
25.5
25
24.5
24
23.5
23
22.5
1
2
3
4
5
6
Lamp Size (sq. in.)
I_TOTAL vs. Lamp Size
V_DD= 3.0V; Coil= 5mH, 18Ω; C_OSC=100pF
250
200
150
100
50
0
1
2
3
4
5
6
Lamp Size (sq. in.)
Output Voltage vs. Lamp Size.
V_DD= 3.0V; Coil= 5mH, 18Ω; C_OSC=100pF
35
30
25
20
15
10
5
0
1
2
3
4
5
6
Lamp Size (sq. in.)
Luminance vs. Lamp Size.
V_DD= 3.0V; Coil= 5mH, 18Ω; C_OSC=100pF
SP4422ADS/15
SP4422A Electroluminescent Lamp Driver
7
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