SHINDENGEN Stepping Motor Driver ICs MTD Series OUTLINE DIMENSIONS MTD2003F Case : HSOP-28 (Unit : mm) FEATURES ●Constant-current chopping function (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 Symbol VCEO(SUS) IO VCC VIN PT Tj Tstg Output Voltage Output Current Logic Supply Voltage Logic Input Voltage Total Power Dissipation Junction Temperature Storage Temperature ●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 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 Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd Ratings 30 1.2 0～6 0～VCC 3 150 -40～150 min. Unit V A V V W ℃ ℃ typ. max. 1.2 1.4 0.7 1.0 10 10 15 25 50 65 2.7 Vcc GND 0.6 10 -3 -20 2.7 Vcc GND 0.6 10 -75 -100 0.475 0.5 0.525 0.322 0.35 0.378 0.153 0.17 500 -1 1.55 0.187 650 -10 150 Unit V V μA μA mA mA V V μA μA V V μA μA V V V μA μA μs ℃ Stepping Motor Driver ICs MTD2003F ● Equivalent Circuit・Basic Application Circuit ●Pin Assignment ●True Table IN 1 or 4 L L H H ●Recommended Parts Value IN 2 or 3 L H L H Out 1 or 4 OFF L H OFF Out 2 or 3 OFF H L OFF Symbol Rs Rt Ct Vr Recommended Value 0.68 18 3300 Vcc Unit Ω kΩ pF V ●True Table for Current Chopping Level Io I1 Current Level（％） L H L H L L H H 100 70 33 0 Vref（V） （Vr=5V） 0.5±5％ 0.35±8％ 0.17±10％ ●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 10・Rs ○Chopping Frequency Setting f = 1 0.72・Ct・Rt ●Recommended Operating Conditions （Ta=25℃） Item Motor Supply Voltage Output Current Logic Supply Voltage Chopping Frequency Operating Temperature Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd Symbol Vmm Io Vcc fchop Top min. typ. 4.75 max. 27 0.8 5.25 20 -25 120 Unit V A V kHz ℃