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STK672-400 数据表(PDF) 6 Page - ON Semiconductor |
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STK672-400 数据表(HTML) 6 Page - ON Semiconductor |
6 / 19 page STK672-400 No.A0751-6/19 [Setting the motor current] The motor current is set by the hybrid IC's pin 19V, Vref. The formula shows below gives the relationship between IOH and Vref. Vref = VDD-(IOH × Rs × K) ···························································································································· (1) K: 9.33 (voltage divider ratio) Rs: 0.152 Ω (hybrid IC internal current detection resistance: precision = ±3%) Model of the Motor Phase Current Flowing into the Hybrid IC Function Table M2 0 0 1 1 M1 M3 0 1 0 1 Phase switching clock edge timing 1 2 phase excitation 1-2 phase excitation W1-2 phase excitation 2W1-2 phase excitation CLK rising edge 0 1-2 phase excitation W1-2 phase excitation 2W1-2 phase excitation 4W1-2 phase excitation Both CLK edges CWB pin ENABLE and RESET pins Forward Reverse ENABLE Motor current cut: Low CWB 0 1 RESET Active Low 0A IOH IOL Ioave |
类似零件编号 - STK672-400 |
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类似说明 - STK672-400 |
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