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TC648 Folha de dados(PDF) 8 Page - Microchip Technology |
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TC648 Folha de dados(HTML) 8 Page - Microchip Technology |
8 / 28 page TC648 DS21448C-page 8 2002 Microchip Technology Inc. FIGURE 4-1: TC648 Behavioral Algorithm Flowcharts. VOUT = 0 VIN > VOTF? Auto- Shutdown VOUT = 0 No Yes Normal Operation VIN < VAS ? No Yes VOUT Duty Cycle Prop. to VIN OTF = 0 OTF = 1 No YES Fire Start-up Timer Normal Operation VAS ≈ 0V VIN < VAS? Auto- Shutdown VOUT = 0 Yes No Yes Power-Up Minimum Speed Mode Power-on Reset OTF = 1 VIN > (VAS + VHAS) No Power-Up VIN ≈ 0V ? VIN > 1.25V ? VIN > 1.25V No No Yes Yes No Yes Yes Minimum Speed Mode No VOUT = 0 OTF = 0 VIN > VOTF? VOUT Duty Cycle Proportional to VIN OTF = 1 |
Nº de peça semelhante - TC648 |
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Descrição semelhante - TC648 |
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