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MC34067 Datasheet(PDF) 6 Page - ON Semiconductor |
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MC34067 Datasheet(HTML) 6 Page - ON Semiconductor |
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MC34067, MC33067 http://onsemi.com 6 24 2.0 3.2 2.4 1.6 0.8 0 0 −50 Figure 8. Reference Output Voltage Change versus Source Current Iref, REFERENCE SOURCE CURRENT (mA) Figure 9. Drive Output Saturation Voltage versus Load Current 0 −1.0 −2.0 −3.0 3.0 IO, OUTPUT LOAD CURRENT (A) Figure 10. Drive Output Waveform 90% 10% 20 ns/DIV Figure 11. Soft−Start Saturation Voltage versus Capacitor Discharge Current Idchg, CAPACITOR DISCHARGE CURRENT (mA) 0 −30 −10 −20 −40 1.0 2000 1600 1200 800 400 0 Figure 12. Operating Frequency versus Supply Current ICC, SUPPLY CURRENT (mA) Source Saturation (Load to Ground) Source Saturation (Load to VCC) GND TA = −40°C TA = 25°C Figure 13. Supply Current versus Supply Voltage TA = 25°C TA = −40°C VCC, SUPPLY VOLTAGE (V) 20 12 4.0 0 16 8.0 VCC = 12 V 80 ms Pulsed Load 120 Hz Rate TA = −40°C CL = 1.0 nF TA = 25 °C 0 0.2 0.4 0.6 0.8 1.0 0 20 40 60 80 100 0 2.0 4.0 6.0 8.0 10 30 40 50 60 70 80 90 0 4.0 8.0 12 16 20 VCC = 12 V CL = 1.0 nF TA = 25 °C VCC = 12 V Pin 10 = Vref TA = 25 °C TA = −20°C TA = −125°C VCC = 12 V VCC TA = 25 °C Enable/UVLO Adjust Pin to VCC (Dashed Line) Enable/UVLO Adjust Pin Open (Solid Line) |
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