SP4422A Datasheet, PDF (6/13 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
700
600
500
400
300
200
100
0
50
75
100 180 220 360
C_OSC (pF)
Lamp Frequency vs C_OSC
V_DD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in.
25
20
15
10
5
0
50
75
100 180 220 360
C_OSC (pF)
I_TOTAL vs C_OSC
V_DD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in.
300
250
200
150
100
50
0
50
75
100 180 220 360
C_OSC (pF)
Output Voltage vs C_OSC
V_DD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in.
12
10
8
6
4
2
0
50
75
100 180 220 ₃₆₀
C_OSC (pF)
Luminance vs C_OSC
V_DD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in.
200
175
150
125
100
75
50
25
0
50
75
100 180 220 360
C_OSC (pF)
Oscillator Frequency vs C_OSC
V_DD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in.
11.4
11.2
11
10.8
10.6
10.4
1
2
3
4
5
6
Lamp SIze (sq.in.)
I_TOTAL vs Lamp Size
V_DD= 3.0V; Coil= 9mH, 35Ω; C_OSC = 180pF
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= 9mH, 35Ω; C_OSC= 180pF
7
6
5
4
3
2
1
0
1
2
3
4
5
6
Lamp Size (sq.in.)
Luminance vs Lamp Size.
V_DD= 3.0V; Coil= 9mH, 35Ω; C_OSC= 180pF
SP4422ADS/15
SP4422A Electroluminescent Lamp Driver
6
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