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MC33025DW Fiches technique(PDF) 4 Page - ON Semiconductor

No de pièce MC33025DW
Description  High Speed Double-Ended PWM Controller
Download  20 Pages
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Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC33025DW Fiches technique(HTML) 4 Page - ON Semiconductor

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MC34025 MC33025
4
MOTOROLA ANALOG IC DEVICE DATA
Gain
Phase
1
CT=
1. 100 nF
2. 47 nF
3. 22 nF
4. 10 nF
5. 4.7 nF
6. 2.2 nF
7. 1.0 nF
8. 470 pF
9. 220 pF
2
3
4
5
6
7
8
9
– 55
– 25
0
25
75
100
125
Figure 1. Timing Resistor versus
Oscillator Frequency
100
1000
104
105
106
107
fosc, OSCILLATOR FREQUENCY (Hz)
Figure 2. Oscillator Frequency versus Temperature
TA, AMBIENT TEMPERATURE (°C)
Figure 3. Error Amp Open Loop Gain and
Phase versus Frequency
10
100
1.0 k
10 k
100 k
1.0 M
10 M
f, FREQUENCY (Hz)
Figure 4. PWM Comparator Zero Duty Cycle
Threshold Voltage versus Temperature
–55
–25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (°C)
Figure 5. Error Amp Small Signal
Transient Response
Figure 6. Error Amp Large Signal
Transient Response
125
0
45
90
135
0.1
µs/DIV
0.1
µs/DIV
VCC = 15 V
RT = 3.6 k
CT = 1.0 nF
RT = 1.2 k
CT = 1.0 nF
RT = 36 k
CT = 1.0 nF
50
50 kHz
400 kHz
1.0 MHz
VCC = 15 V
Pin 7(9) = 0 V
VCC = 15 V
TA = + 25°C
1.3
1.28
1.26
1.24
1.22
1.2
100 k
10 k
1.0 k
470
1200
1000
800
600
400
200
120
100
80
60
40
20
0
0
–20
2.55 V
2.5 V
2.45 V
3.0 V
2.5 V
2.0 V


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