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STK672 Scheda tecnica(PDF) 7 Page - Sanyo Semicon Device |
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STK672 Scheda tecnica(HTML) 7 Page - Sanyo Semicon Device |
7 / 11 page STK672-050 No. 5228—7/11 2-6. M4 and M5 (Setting of rotation vector locus at micro-step) For the current division ratio, see Section 4-3. 2-7. RESET (Reset of entire system) 1. Pin format sCMOS Schmitt configuration containing the pull-up resistor (20 k Ω typical value) 2. Function sAll circuit states are set to the initial values by setting the RESET signal to the low state (pulse width of 10 µs or more). At this time, for all modes including the excitation mode, the A and B phases are set to the origin. 2-8. Vref(Setting of the current value used as the reference of constant current detection) 1. Pin format sAnalog input configuration 2. Function sBy applying the voltage of 2.5 V or less of the control system power source Vcc2, the constant current control can be performed over the excitation current of the motor at the 100% of the rated current value. sThe constant current can be controlled in proportional to the Vref voltage with this value specified as a high limit. 3. Explanation of output pins 4. Functions and timing of output signals 4-1. A, A, B, and B (Output for phase excitation use of motor) 1. Function sIn four phase two excitation mode, the interval of 3.75 µs (typical value) is set when the output signals of the phases A and A, B and B change. 4-2. Mo1, Mo2, and MoI (Monitor of excitation state) 1. Pin format sCMOS standard configuration 2. Function sOutputs the state of the current phase excitation output. For the MoI, 0 is output at the origin of each phase. At other points, 1 is output. M4 1 0 1 0 M5 1 0 0 1 Mode Real circle Pin No. Name Function Pin format 19 MoI Phase excitation origin monitor CMOS standard configuration 20, 21 Mo1, Mo2 Phase excitation state monitor CMOS standard configuration Phase coordinate A phase B phase A phase B phase Mo1 1 0 0 1 Mo2 0 1 0 1 |
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