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STK672-050GEVB Arkusz danych(PDF) 6 Page - ON Semiconductor |
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STK672-050GEVB Arkusz danych(HTML) 6 Page - ON Semiconductor |
6 / 19 page STK672-050-E No.5228-6/19 Power-on Reset The application must perform a power-on reset operation when VCC2 power is first applied to this hybrid IC. Application circuit that used 2W1-2 phase excitation (microstepping operation) mode. Setting the Motor Current The motor current IOH is set by the Vref voltage on the hybrid IC pin 8. The following formula gives the relationship between IOH and Vref. IOH = × Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.2Ω ±3%) Applications can use motor currents from the current (0.05 to 0.1A) set by the duty of the frequency set by the oscillator up to the limit of the allowable operating range, IOH = 3.0A 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 Rising edge only 0 1-2 phase excitation W1-2 phase excitation 2W1-2 phase excitation 4W1-2 phase excitation Rising and falling edges Forward Reverse ENABLE Motor current is cut off when low CWB 0 1 RESET Active low A A B B MO1 1 0 0 1 MO2 0 0 1 1 3 1 0A Motor current waveform Ioave A12408 IOL IOH 8 6 A A 7 22 12 11 10 9 14 13 15 14 18 16 17 19 + + VCC2=5V VCC2=5V SG PG Vref VCC2=5V CLK 1k Ω ENABLE RET RESET MOI VCC1=10V to 45V Two-phase stepping motor STK672-050-E ITF02395 B B 5 2 1 3 4 20 MO1 21 MO2 |
Podobny numer części - STK672-050GEVB |
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Podobny opis - STK672-050GEVB |
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