Datenblatt-Suchmaschine für elektronische Bauteile |
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SI-7321M Datenblatt(PDF) 5 Page - Sanken electric |
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SI-7321M Datenblatt(HTML) 5 Page - Sanken electric |
5 / 19 page 5 SANKEN ELECTRIC CO., LTD. Unipolar 2-Phase Microstepping Motor Driver IC SI-7321M 28210.05 Table 1. Truth Table for Common Input Pins Pin Name Logic Level Low High Reset Normal operation Logic reset CW/ CCW Forward Reverse M1 Commutation / Sleep2 function (see table 2) M2 M3 Ref / Sleep1 Normal operation / Sleep1 function (see Reference Voltage Ranges section) Sync Asynchronous PWM control Synchronous PWM control B_SEL Short Blanking Time (1.8 μs) Long Blanking Time (3.6 μs) E_SEL Clock input: POS/NEG edge Clock input: POS edge P_SEL Protection circuits enabled Protection circuits disabled Table 2. Truth Table for Commutation / Sleep2 Function Input Pins Operation Mode Current Ratio Mode M1 M2 M3 Phases* Stepping L L L 2 Full 8 only H L L 2 Full F only L H L 1-2 Half 8, F H H L 1-2 Half F L L H W1-2 Quarter 4, 8, C, F H L H 2W1-2 Eighth 2, 4, 6, 8, A, C, E, F L H H 4W1-2 Sixteenth 1 through F H H H Sleep2 Mode Enable – *W means "double" Table 3. Truth Table for Monitor Outputs Pin Name Low Level High Level Mo Not operating in 2-Phase Excitation Operating in 2-Phase Excitation Flag Normal operation Protection circuit operating |
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