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UC2845AD1 Fiches technique(PDF) 7 Page - STMicroelectronics |
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UC2845AD1 Fiches technique(HTML) 7 Page - STMicroelectronics |
7 / 15 page 0 200 400 600 IO(mA) 0 1 2 3 -2 -1 Vsat (V) D95IN341 Vi=15V 80 µs Pulsed Load 120Hz Rate TA=-40°C TA=25°C Vi TA=-40°C TA=25°C GND Sink Saturation (Load to Vi) Source Saturation (Load to Ground) Figure 9: Output Saturation Voltage vs. Load Current. 0 102030 Vi(V) 0 5 10 15 20 Ii (mA) RT=10K CT=3.3nF VFB=0V ISense=0V TA=25°C D95IN342 Figure 10: Supply Current vs. Supply Voltage. Figure 11: Output Waveform. Figure 12: Output Cross Conduction 5V REG OSCILLATOR PWM CLOCK 8 4 5 6 RT CT GND OUTPUT 7 Vi ID CT OUTPUT LARGE RT/SMALL CT CT OUTPUT SMALL RT/LARGE CT D95IN344 Figure 13: Oscillator and Output Waveforms. Vi =15V CL = 1.0nF TA =25 °C 90% 10% 50ns/DIV Vi =30V CL = 15pF TA =25 °C VO ICC 100ns/DIV 100mA/DIV 20V/DIV UC2842A/3A/4A/5A - UC3842A/3A/4A/5A 7/15 |
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