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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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AN2859 Datenblatt(PDF) 25 Page - STMicroelectronics |
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AN2859 Datenblatt(HTML) 25 Page - STMicroelectronics |
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25 / 29 page  DocID15255 Rev 2 25/29 AN2859 Resistor settings 29 Appendix C Resistor settings Figure 15, and equations 37, 38 and39 define conditions to identify the state of each AC switch. Equation 37 Equation 38 Equation 39 C.1 First case: V1_Min > V0_Max Equations 26 and 30 define respectively V0_Max and V1_Min (see Appendix A). To take into account R1 resistor’s standardized values (see Equation 13), the resistor’s tolerance (XR), the STCC08 AVF output electrical dispersion and the DC power supply characteristic, the condition on R2 and R4 resistors is defined in Equation 42. Equation 40 Equation 41 Equation 42 0_Max 1_Min V V > 1_Max 2_Min V V > 3_Min 2_Max V V < 0_Max 1_Min V V > AVF_L_Max R_Max 4 2 1 R_Min 2 1 AVF_L_Min R_Min 4 CC_Min V X · R R R X · R R · V X · R · V > ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + + ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + + ⎟⎟ ⎟ ⎠ ⎞ ⎜⎜ ⎜ ⎝ ⎛ − ⎥ ⎥ ⎥ ⎦ ⎤ ⎢ ⎢ ⎢ ⎣ ⎡ − ⎟⎟ ⎟ ⎠ ⎞ ⎜⎜ ⎜ ⎝ ⎛ ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + > R_Min R_Max AVF_L_Max CC_Min AVF_L_Min R_Min R_Max AVF_L_Max 2 1 4 X X · V V V X X · V · R R R |
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