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SI-7321M Scheda tecnica(PDF) 3 Page - Sanken electric |
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SI-7321M Scheda tecnica(HTML) 3 Page - Sanken electric |
3 / 19 page 3 SANKEN ELECTRIC CO., LTD. Unipolar 2-Phase Microstepping Motor Driver IC SI-7321M 28210.05 ELECTRICAL CHARACTERISTICS, valid at TA = 25°C, VBB = 24 V, VDD = 5 V, unless otherwise specified Characteristics Symbol Test Conditions Min. Typ. Max. Units Main Power Supply Current IBB Normal operation – – 15 mA IBBS Sleep1 or Sleep2 modes – – 100 μA Logic Supply Current IDD ––5 mA MOSFET Breakdown Voltage VDSS VBB = 44 V, IDS = 1 mA 100 – – V MOSFET Output On-Resistance RDS(on) IDS = 1.5 A – 0.25 0.4 Ω MOSFET Body Diode Forward Voltage VF IF = 1.5 A – 0.95 1.2 V Maximum Clock Frequency1 fclk Clock duty cycle = 50%, at rising clock edge 250 – – kHz Logic Input Voltage VIL – – 0.25 × VDD V VIH 0.75 × VDD –– V Logic Input Current IIL –±1– μA IIH –±1– μA REF Input Voltage Range2 VREF Protection functions disabled 0.04 – 1.5 V Protection functions enabled 0.04 – 0.6 V VREFS Sleep1 mode, output off, sequencer enabled, IBBS within specification 2.0 – VDD V REF Input Current IREF VREF = 0 to VDD – ±10 – μA SENSE Voltage VSENSE VREF = 0.2 V, current ratio mode F – 0.2 – V SENSE Current ISENSE – ±10 – μA Overcurrent Protection Threshold Voltage VOCP Motor coil short circuit, VSENSE ≥ VOCP 0.65 0.7 0.75 V Flag Pin Logic Output Voltage VFLAGL IFLAGL = 1.25 mA – – 1.25 V VFLAGH IFLAGH = –1.25 mA VDD – 1.25 – – V Flag Pin Logic Output Current3 IFLAGL – – 1.25 mA IFLAGH – 1.25 – – mA Mo Pin Logic Output Voltage VMOL IMOL = 1.25 mA – – 1.25 V VMOH IMOH = –1.25 mA VDD – 1.25 – – V Mo Pin Logic Output Current3 IMOL – – 1.25 mA IMOH – 1.25 – – mA 1 Operation at a step frequency greater than the specified minimum value is possible but not warranted. 2 VREF setting range affected by whether or not protection features are enabled. 3 Negative current is defined as coming out of the specified pin. |
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