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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MH2501SC датащи(PDF) 3 Page - Shindengen Electric Mfg.Co.Ltd |
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MH2501SC датащи(HTML) 3 Page - Shindengen Electric Mfg.Co.Ltd |
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3 / 33 page  SHINDENGEN ELECTRIC MFG.CO.,LTD - 3 - Index 1 : Outline 1.1: Features 5 1.2: Block diagram 5 1.3: Pin arrangement diagram 6 1.4: Pin function list 6 2 : Operating principles For Master IC and/ or Slave IC 2.1： Operating principles of current-critical PFC with ON range control 7 2.2: Zero current detection Master 8 2.3: Interleaving Master Slave 9-10 2.4: Startup and shutdown sequences Master Slave 11 2.5: Output voltage control Master 12 2.6: Phase compensation Master 13 2.7: Gate driver Master Slave 13 2.8: Protection functions 2.8.1: Overcurrent protection Master Slave 14 2.8.2: Output overvoltage protection (OVP) Master Slave 14-15 2.8.3: Low input voltage protection and FB pin open/short protection Master 15 2.8.4: Output diode short protection Master 16 2.8.5: VCC pin undervoltage protection (UVLO) Master Slave 16 2.8.6: Thermal shutdown Master 16 2.9：Application circuit 2.9.1: Slave stop protection 17-18 2.9.2: Remote ON/OFF 18 2.9.3: Switching the number of phases 19 2.10: Example of operation waveforms 20 3 : Circuit example 3.1: Typical circuit diagram 21 4 : Determining peripheral circuit constants 4.1: Selecting choke coils 22 4.2: Selecting the MOSFET 23 4.3: Selecting an output diode 23 4.4: Selecting a bypass diode 23 4.5: Adjusting constants for components around Z/C pin 24 4.6: Adjusting phase compensation 25 4.7: Adjusting the output voltage 25 4.8: Adjusting the overcurrent protection point 26 4.9: Selecting the output capacitor 26 |
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