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MC34261 Datasheet(PDF) 5 Page - ON Semiconductor |
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MC34261 Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 13 page MC34261, MC33261 http://onsemi.com 5 Figure 9. Zero Current Detector Input Threshold Voltage Change versus Temperature −55 −25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) Minimum Operating Threshold (VCC Decreasing) Figure 10. Output Saturation Voltage versus Load Current Gnd VCC 0 80 160 240 320 IO, OUTPUT LOAD CURRENT (mA) Source Saturation (Load to Ground) Sink Saturation (Load to VCC) VCC = 12 V 80 μs Pulsed Load 120 Hz Rate Figure 11. Drive Output Waveform −55 −25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) VCC = 12 V Upper Threshold (Vin Increasing) Lower Threshold (Vin Decreasing) Figure 12. Drive Output Cross Conduction Figure 13. Supply Current versus Supply Voltage Figure 14. Undervoltage Lockout Thresholds versus Temperature 10 20 30 40 VCC, SUPPLY VOLTAGE (V) VFB = 0 V Current Sense = 0 V Multiplier = 0 V CL = 1.0 nF f = 50 kHz TA = 25°C VCC = 12 V CL = 1.0 nF TA = 25°C VCC = 12 V CL = 15 pF TA = 25°C 90 % 10 % 100 ns/DIV 100 ns/DIV 12 11 10 9.0 8.0 6.0 7.0 0 −2.0 −4.0 −6.0 2.0 0 4.0 40 20 0 −20 −40 16 12 8.0 4.0 0 0 Startup Threshold (VCC Increasing) |
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