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| SHINDENGEN Stepping Motor Driver ICs MTD Series MTD1110 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 Built-in overheating protection (Alarm + shutdown) Built-in flywheel diodes 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) Io=1.5A ICER VCER=80V 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 80 2 07 0VCC 5 150 -40150 min. typ. 1.1 20 40 2.7 2.7 GND GND Unit V A V V W max. 1.4 10 40 60 Vcc Vcc 1.0 1.0 10 10 -10 -10 -1 -1 -50 -100 -50 -50 1.0 10 2 125 150 Electrical Characteristics (Ta=25) Item Output Saturation Voltage Output Leakage Current 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 Unit V A mA mA V V A A A V A mA Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd Stepping Motor Driver ICs Equivalent CircuitBasic Application Circuit MTD1110 Pin Assignment True Table ENA L L L L H IN A or B L L H H x IN A or B L H L H x x : don't care Recommended Parts Value Out A or B OFF OFF ON OFF OFF Out A or B OFF ON OFF OFF OFF Symbol Rs RF CF Rt Ct Vz R1+R2 Recommended Value 0.68 1 3300 8.2 3300 Vmmx1.21.5 <10 Unit k pF k pF V 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) 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 Voltage VOUT Output Current IO Output Emitter Voltage VE Logic Supply Voltage VCC Chopping Frequency fchop Operating Temperature Top min. typ. max. 32 70 1.5 1.0 5.25 27 120 4.75 20 -25 Unit V V A V V kHz Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd |
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