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| SHINDENGEN Stepping Motor Driver ICs MTD Series MTD2003F FEATURES Constant-current chopping function OUTLINE DIMENSIONS Case : HSOP-28 (Unit : mm) (Frequency fixed, separate-oscillation) 4-phase input (with inhibit for simultaneously turn ON) Current levels can be selected in 2 bit digital signal A noise cancel function is provided (No externally attached filter needed) Protection for penetration current Built-in overheating protection 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)H Io=1.0A VCE(sat)L Io=1.0A IrH Vmm=30V,Vout=0V IrL Vout=30V,VRS=0V ICC(OFF) VCC=5V,IN="H,H"or"L,L" ICC(ON) VCC=5V VINH VCC = 5V VINL VCC = 5V lINH VCC = 5V,VIN=5V lINL VCC = 5V,VIN=0V V(Io,II)H VCC=5V V(Io,II)L VCC=5V I(Io,II)H VCC=5V,V(Io,II)=5V I(Io,II)L VCC=5V,V(Io,II)=0V VS1 VCC=Vr=5V,V(Io)=0V,V(II)=0V VS2 VCC=Vr=5V,V(Io)=5V,V(II)=0V VS3 VCC=Vr=5V,V(Io)=0V,V(II)=5V Iref VCC=5V,Vr=5V Isense VCC=5V,VS=0V tb VCC=5V,Ct=3300pF TTSD Ratings 30 1.2 06 0VCC 3 150 -40150 min. typ. 1.2 0.7 Unit V A V V W max. 1.4 1.0 10 10 15 50 25 65 Vcc 0.6 10 -3 -20 Vcc 0.6 10 -75 -100 0.525 0.378 0.187 650 -10 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 Io,II"H"Input Voltage Io,II"L"Input Voltage Io,II"H"Input Current Io,II"L"Input Current Current Sensor Threshold(100%) Current Sensor Threshold(70%) Current Sensor Threshold(33%) Reference Input Current Input Current(Current Sensor) Pulse Blanking Time Thermal Shutdown Temperature 2.7 GND 2.7 GND 0.475 0.322 0.153 0.5 0.35 0.17 500 -1 1.55 150 Unit V V A A mA mA V V A A V V A A V V V A A s Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd Stepping Motor Driver ICs Equivalent CircuitBasic Application Circuit MTD2003F Pin Assignment True Table IN 1 or 4 L L H H IN 2 or 3 L H L H Out 1 or 4 OFF L H OFF Out 2 or 3 OFF H L OFF Recommended Parts Value Symbol Rs Rt Ct Vr Recommended Value 0.68 18 3300 Vcc Unit k pF V True Table for Current Chopping Level Io L H L H I1 L L H H Current Level 100 70 33 0 VrefV Vr=5V 0.55 0.358 0.1710 Setting of Output Current and Chopping Frequency Fig.1 shows constant current chopping wave form. Fig.1 Constant current wave form (Motor current / phase) Output Current setting Io(100%) = Vr - 0.015 10Rs Chopping Frequency Setting f= 1 0.72CtRt Recommended Operating Conditions Ta=25 Item Motor Supply Voltage Output Current Logic Supply Voltage Chopping Frequency Operating Temperature Symbol Vmm Io Vcc fchop Top min. typ. max. 27 0.8 5.25 120 Unit V A V kHz 4.75 20 -25 Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd |
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