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SI-7321M 数据表(PDF) 2 Page - Sanken electric |
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SI-7321M 数据表(HTML) 2 Page - Sanken electric |
2 / 19 page 2 SANKEN ELECTRIC CO., LTD. Unipolar 2-Phase Microstepping Motor Driver IC SI-7321M 28210.05 Selection Guide Part Number Package Packing SI-7321M SOP 44-pin surface mount 2000 pieces/ 13-in. reel Features and Benefits (continued) All performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature, TA, of 25°C, unless otherwise stated. reference current ratio ▪ Built-in synchronous rectifying circuit reduces losses at PWM switch-off ▪ Synchronous PWM chopping function prevents motor noise in Hold mode ▪ Built-in current sensing for each phase, set externally ▪ Dual sleep modes reduce IC input current in stand-by state ▪ Built-in protection against motor coil opens and shorts • User-configurable operation options, set by external logic input: ▫ Blanking time: 1.8 μs or 3.6 μs ▫ Sequencer timing on Clock input rising (POS) edge or both rising and falling (POS/NEG) edges ▫ Protection features enable or disable Absolute Maximum Ratings Characteristic Symbol Notes Rating Units Load Supply Voltage VM 46 V Main Power Supply Voltage VBB 46 V Logic Supply Voltage VDD 6V Output Current IO Current ratio mode F; output current rating may be limited by duty cycle, ambient temperature, and heat sinking; under any set of conditions, do not exceed the specified junction temperature, TJ 1.5 A Logic Input Voltage VIN –0.3 to VDD+0.3 V REF Input Voltage VREF –0.3 to VDD+0.3 V Sense Voltage VRS tw < 1 μs not considered (tw = dead time after the sense voltage exceeds ±2 V) ±2 V Power Dissipation PD Using Sanken evaluation board at 25°C; rating significantly affected by the application PCB layout 3.5 W Junction Temperature TJ 150 °C Ambient Temperature TA –20 to 80 °C Storage Temperature Tstg –30 to 150 °C Recommended Operating Conditions Characteristic Symbol Conditions Min. Typ. Max. Unit Load Supply Voltage VM – – 44 V Main Power Supply Voltage VBB 10–44 V Logic Supply Voltage VDD Surge voltage at VDD pin should be less than ±0.5 V to avoid malfunctioning in operation 3.3 – 5.5 V REF Input Voltage VREF Protection features disabled 0.04 – 1.0 V Protection features enabled 0.04 – 0.5 V Case Temperature TC Measured at center of case on branded side – – 85 °C |
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类似说明 - SI-7321M |
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