Datasheet MC33023, MC34023 (ON Semiconductor) - 6
| 制造商 | ON Semiconductor |
| 描述 | High Speed Single-Ended PWM Controller |
| 页数 / 页 | 19 / 6 — MC34023, MC33023. Figure 2. Timing Resistor versus. Figure 3. Oscillator … |
| 文件语言 | 英语 |
MC34023, MC33023. Figure 2. Timing Resistor versus. Figure 3. Oscillator Frequency. Oscillator Frequency. versus Temperature
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MC34023, MC33023
100 k 1200 V R 9 CC = 15 V T = 1.2 k 1 3 5 7 TA = + 25°C 1.0 MHz CT = 1.0 nF (kHz) 1000 Ω 2 4 6 8 OR ( ) CT = 800 10 k 1. 100 nF VCC = 15 V 2. 47 nF 600 3. 22 nF OR FREQUENCY RT = 3.6 k T 4. 10 nF 400 kHz CT = 1.0 nF 5. 4.7 nF 400 , TIMING RESIST T 6. 2.2 nF R 7. 1.0 nF 1.0 k , OSCILLA R 200 T = 36 k 8. 470 pF 50 kHz C f osc T = 1.0 nF 9. 220 pF 470 0 100 1000 104 105 106 107 -55 -25 0 25 50 75 100 125 fosc, OSCILLATOR FREQUENCY (Hz) TA, AMBIENT TEMPERATURE (°C)
Figure 2. Timing Resistor versus Figure 3. Oscillator Frequency Oscillator Frequency versus Temperature
120 0 1.30 100 1.28 80 45 °C) VCC = 15 V Gain Pin 7(9) = 0 V TAGE GAIN (dB) CYCLE (V) 1.26 60 VOL Phase 40 90 1.24 20 θ , EXCESS PHASE ( , ZERO DUTY , OPEN LOOP V TH 1.22 0 135 VOLA -20 1.20 10 100 1.0 k 10 k 100 k 1.0 M 10 M -55 -25 0 25 50 75 100 125 f, FREQUENCY (Hz) TA, AMBIENT TEMPERATURE (°C)
Figure 4. Error Amp Open Loop Gain and Figure 5. PWM Comparator Zero Duty Cycle Phase versus Frequency Threshold Voltage versus Temperature
2.55 V 3.0 V 2.5 V 2.5 V 2.45 V 2.0 V 0.1 ms/DIV 0.1 ms/DIV
Figure 6. Error Amp Small Signal Figure 7. Error Amp Large Signal Transient Response Transient Response http://onsemi.com 5
100 k 1200 V R 9 CC = 15 V T = 1.2 k 1 3 5 7 TA = + 25°C 1.0 MHz CT = 1.0 nF (kHz) 1000 Ω 2 4 6 8 OR ( ) CT = 800 10 k 1. 100 nF VCC = 15 V 2. 47 nF 600 3. 22 nF OR FREQUENCY RT = 3.6 k T 4. 10 nF 400 kHz CT = 1.0 nF 5. 4.7 nF 400 , TIMING RESIST T 6. 2.2 nF R 7. 1.0 nF 1.0 k , OSCILLA R 200 T = 36 k 8. 470 pF 50 kHz C f osc T = 1.0 nF 9. 220 pF 470 0 100 1000 104 105 106 107 -55 -25 0 25 50 75 100 125 fosc, OSCILLATOR FREQUENCY (Hz) TA, AMBIENT TEMPERATURE (°C)
Figure 2. Timing Resistor versus Figure 3. Oscillator Frequency Oscillator Frequency versus Temperature
120 0 1.30 100 1.28 80 45 °C) VCC = 15 V Gain Pin 7(9) = 0 V TAGE GAIN (dB) CYCLE (V) 1.26 60 VOL Phase 40 90 1.24 20 θ , EXCESS PHASE ( , ZERO DUTY , OPEN LOOP V TH 1.22 0 135 VOLA -20 1.20 10 100 1.0 k 10 k 100 k 1.0 M 10 M -55 -25 0 25 50 75 100 125 f, FREQUENCY (Hz) TA, AMBIENT TEMPERATURE (°C)
Figure 4. Error Amp Open Loop Gain and Figure 5. PWM Comparator Zero Duty Cycle Phase versus Frequency Threshold Voltage versus Temperature
2.55 V 3.0 V 2.5 V 2.5 V 2.45 V 2.0 V 0.1 ms/DIV 0.1 ms/DIV
Figure 6. Error Amp Small Signal Figure 7. Error Amp Large Signal Transient Response Transient Response http://onsemi.com 5