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| SHINDENGEN Stepping Motor Driver ICs MTD Series MTD2001 FEATURES Constant-current chopping function OUTLINE DIMENSIONS Case : ZIP-27 (Unit : mm) (Off time fixed, self-oscillation) 4-phase input (with inhibit for simultaneously turn ON) An ENABLE function is provided Protection for penetration current Built-in overheating protection (Alarm + shutdown) RATINGS Absolute Maximum Ratings (Ta=25) Item Output Voltage Output Current LogicSupplyVoltage LogicInputVoltage Total Power Dissipation Junction Temperature Storage Temperature Symbol VCEO(SUS) IO VCC VIN PT Tj Tstg Symbol Test Conditions VCE(sat)H Io=1.0A VCE(sat)L Io=1.0A IrH Vmm=60V,Vout=0V IrL Vout=60V,VRS=0V ICC(OFF) VCC=5V,VENA="H" ICC(ON) VCC=5V,VENA="L" VINH VCC = 5V VENAH VCC = 5V VINL VCC = 5V VENAL VCC = 5V lINH VCC = 5V,VIN=5V lENAH VCC = 5V,VENA=5V lINL VCC = 5V,VIN=0V lENAL VCC = 5V,VENA=0V Iref VCC=5V,Vref=0V Isense VCC=5V,VS=0V VS(max.) VCC=5V Iralm VCC=5V,Valm=5V Ialm VCC=5V,Valm=0.5V Talm TTSD Ratings 60 1.5 07 0VCC 5 150 -40150 min. typ. 1.0 1.0 Unit V A V V W max. 1.4 1.3 10 10 25 55 35 75 Vcc Vcc 1.0 1.0 10 10 -10 -10 -1 -1 -50 -50 -10 -10 1.5 10 2 125 150 Electrical Characteristics (Ta=25) Item Output Saturation Voltage(Upper side) Output Saturation Voltage(Lower side) Output Leakage Current(Upper side) Output Leakage Current(Lower side) Logic Supply Current(Standby) Logic Supply Current(All Circuit ON) Input High Voltage Input Low Voltage Logic High Input Current Logic Low Input Current Reference Input Current Input Current(Current Sensor) Maximum Sensing Voltage Thermal Alarm Cutoff Current Thermal Alarm Output Current Thermal Alarm Temperature Thermal Shutdown Temperature 2.7 2.7 GND GND Unit V V A A mA mA V V A A A A V A mA Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd Stepping Motor Driver ICs Equivalent CircuitBasic Application Circuit MTD2001 Pin Assignment True Table ENA A or B L L L L H IN 1 or 4 L L H H x IN 2 or 3 L H L H x x : don't care Recommended Parts Value Out 1 or 4 OFF L H OFF OFF Out 2 or 3 OFF H L OFF OFF Symbol Rs RF CF Rt Ct R1+R2 Recommended Value 0.68 2 1000 15 3300 <10 Unit k pF k pF k Setting of Output Current and Fixed Off Time Fig.1 shows constant current chopping wave form. Fig.1 Constant current wave form (Motor current / phase) Output Current setting Io = R2 Vcc R1+R2 Rs Fixed Off Time Setting Toff=0.69CtRt Recommended Operating Conditions Ta=25 Item Symbol Motor Supply Voltage Vmm Output Current IO Output Emitter Voltage VE Logic Supply Voltage VCC Chopping Frequency fchop Operating Temperature Top min. 10 typ. max. 50 1.2 1.5 5.25 27 120 4.75 20 -25 Unit V A V V kHz Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd |
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