SP4501 Datasheet, PDF (7/13 Pages) Sipex Corporation – EL Plus Piezo Driver

PERFORMANCE CHARACTERISTICS
100
90
80
70
VCAP,pk
60
50
40
30
IDD
20
10
0
200
400
600
800
ROSC (k Ω)
1000
Figure 3: Supply Current and Cap Pin Voltage vs.
Oscillator Resistance.
600
550
Freq.
500
450
400
350
300
250
Lumi.
200
150
100
200
400
600
800
ROSC (k Ω)
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
1000
Figure 4: Lamp Frequency and Luminance vs.
Oscillator Frequency.
140
14.0
120
12.0
100
10.0
80
VCAP,pk
8.0
60
6.0
40 Lumi.
4.0
20
2.0
IDD
0
0.0
2.0
3.0
4.0
5.0
6.0
V_DD (V)
Figure 5: Supply Current and Luminance vs. Supply
Voltage.
100
90
80
VCAP,pk
10.0
9.0
8.0
70 _Lumi.
7.0
60
6.0
50
5.0
40
IDD
4.0
30
3.0
20
2.0
10
1.0
0
0.0
400 500 600 700 800 900 1000
Inductor Value (µH)
Figure 6: Supply Current and Luminance vs. Inductor
Value.
70
60
50
40
30
20
10
0
0
1000
2000
3000
4000
5000
6000
7000
frequency (Hz)
Figure 7: Piezo Output Voltage vs. PZCK Input
Frequency.
11-14-00
SP4501 EL Plus Piezo Driver
7
© Copyright 2000 Sipex Corporation