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MIC3833BWM Datasheet(PDF) 5 Page - Micrel Semiconductor |
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MIC3833BWM Datasheet(HTML) 5 Page - Micrel Semiconductor |
5 / 10 page April 1998 4-139 MIC3832/3833 Micrel 4 Typical Characteristics 4.94 4.96 4.98 5.00 5.02 5.04 5.06 -40 0 40 80 120 160 JUNCTION TEMPERATURE ( °C) Reference Voltage vs. Junction Temperature 15.6 15.8 16.0 16.2 16.4 -40 0 40 80 120 160 9.2 9.4 9.6 9.8 10.0 -40 0 40 80 120 160 JUNCTION TEMPERATURE ( °C) MIC3832 Undervoltage Lockout vs. Junct. Temp. ON OFF 10 100 1000 1 10 100 TIMING RESISTANCE (k Ω) Oscillator Frequency vs. Timing Resistance 85pF 550pF 1.1nF 2.2nF 10.2nF Note 4 0.1 1 10 110 TIMING CAPACITOR (nF) Discharge Time vs. Timing Capacitance -40 °C 125 °C 25 °C 23 4 5 6 8 0 1 2 3 4 5 -40 0 40 80 120 160 JUNCTION TEMPERATURE ( °C) Oscillator Discharge Current vs. Junct. Temp. 0 10 20 30 40 50 60 70 80 90 100 012345 MDC CONTROL VOLTAGE (V) Voltage-Mode Max. Duty Cycle vs. MDC Voltage Note 5 0 1 2 3 4 5 0 0.2 0.4 0.6 0.8 1 OUTPUT SINK CURRENT (A) Output Saturation Voltage vs. Output Sink Current -55 °C 125 °C 25 °C 0 1 2 3 0123456 ERROR AMP OUTPUT (V) Current Sense Threshold vs. Error Amplifier Output 25 °C 125 °C -55 °C V II = 1 V II = 3 V II = 2 -25 0 25 50 75 100 -180 -135 -90 -45 0 45 FREQUENCY (Hz) AMPLITUDE PHASE Error Amplifier Open-Loop Frequency Response 7.0 7.5 8.0 8.5 9.0 -40 0 40 80 120 160 JUNCTION TEMPERATURE ( °C) MIC3833 Undervoltage Lockout vs. Junct. Temp. ON OFF 0 1 2 3 4 5 0 0.2 0.4 0.6 0.8 1 OUTPUT SOURCE CURRENT (A) Output Voltage Drop vs. Output Source Current 125 °C 25 °C -55 °C Note 4: CMR (pin 12) connected to C T (pin 15). Note 5: CMR (pin 12) connected to C T (pin 15). MDC voltage measured at MDC/SS (pin 11). C T = 1nF, RT = 10kΩ. |
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