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MC33025DWR2G View Datasheet(PDF) - ON Semiconductor

Part NameDescriptionManufacturer
MC33025DWR2G High Speed Double−Ended PWM Controller ON-Semiconductor
ON Semiconductor ON-Semiconductor
MC33025DWR2G Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
MC34025, MC33025
100 k
1
3
5
7
9
VCC = 15 V
TA = + 25°C
2
4
6
8
CT=
10 k 1. 100 nF
2. 47 nF
3. 22 nF
4. 10 nF
5. 4.7 nF
6. 2.2 nF
1.0 k 7. 1.0 nF
8. 470 pF
9. 220 pF
470
100
1000
104
105
106
107
fosc, OSCILLATOR FREQUENCY (Hz)
Figure 2. Timing Resistor versus
Oscillator Frequency
1200
RT = 1.2 k
1000
1.0 MHz
CT = 1.0 nF
800
VCC = 15 V
600
400
400 kHz
RT = 3.6 k
CT = 1.0 nF
200
RT = 36 k
50 kHz
CT = 1.0 nF
0
− 55 − 25
0
25
50
75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 3. Oscillator Frequency versus Temperature
120
0
100
80
45
Gain
60
Phase
40
90
20
0
135
− 20
10
100
1.0 k 10 k
100 k 1.0 M 10 M
f, FREQUENCY (Hz)
Figure 4. Error Amp Open Loop Gain and
Phase versus Frequency
1.3
1.28
VCC = 15 V
Pin 7(9) = 0 V
1.26
1.24
1.22
1.2
−55 −25
0
25
50
75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 5. PWM Comparator Zero Duty Cycle
Threshold Voltage versus Temperature
2.55 V
2.5 V
2.45 V
0.1 ms/DIV
Figure 6. Error Amp Small Signal
Transient Response
3.0 V
2.5 V
2.0 V
0.1 ms/DIV
Figure 7. Error Amp Large Signal
Transient Response
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