MTD1120F SHINDENGEN | Alldatasheet
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Technical content
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd RATINGS SHINDENGEN OUTLINE DIMENSIONS (Unit : mm) MTD SeriesStepping Motor Driver ICs MTD1120F Case : HSOP-28
- Constant-current chopping function (Off time fixed, self-oscillation)
- 4-phase input (with inhibit for simultaneously turn ON)
- Built-in flywheel diodes
FEATURES
- Absolute Maximum Ratings (Ta=25℃) Item Symbol Ratings Unit Output Voltage VCEO(SUS) 80 V Output Current IO 1.2 A Logic Supply Voltage VCC 0～7V Logic Input Voltage VIN 0～VCC V Total Power Dissipation PT 3W Junction Temperature Tj 150 ℃ Storage Temperature Tstg -40 ～150 ℃
- Electrical Characteristics (Ta=25℃) Item Symbol Test Conditions min. typ. max. Unit Output Saturation Voltage VCE(sat) Io=0.9A 1.1 1.4 V Output Leakage Current ICER VCER=80V 10 μA Logic Supply Current ICC VCC = 5V 30 70 mA Input High Voltage VINH VCC = 5V 2.7 Vcc V Input Low Voltage VINL VCC = 5V GND 1.0 V Logic High Input Current lINH VCC = 5V,VIN=5V 10 μA Logic Low Input Current lINL VCC = 5V,VIN=0V -10 -50 μA Reference Input Current Iref VCC = 5V,Vref=0V -1 -50 μA Input Current(Current Sensor) Isense VCC=5V,VS=0V -1 -50 μA Maximum Sensing Voltage VS(max.) VCC=5V 1.0 V
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd MTD1120FStepping Motor Driver ICs
- Equivalent Circuit・Basic Application Circuit ●Pin Assignment
- Setting of Output Current and Fixed Off Time Fig.1 shows constant current chopping wave form. ○Output Current setting ○Fixed Off Time Setting Toff=0.69・Ct・Rt Io = R1+R2 R2 ・ Rs Vcc Fig.1 Constant current wave form (Motor current)
- True Table IN A or B IN A or B Out A or B Out A or B LL O F F O F F LH O F F O N H L ON OFF HH O F F O F F
- Recommended Parts Value Symbol Recommended Value Unit Rs 0.68 Ω RF 1 kΩ CF 3300 pF Rt 8.2 k Ω Ct 3300 pF Vz Vmm ×1.2～1.5 V R1+R2 < 10k Ω
- Recommended Operating Conditions （Ta=25℃） Item Symbol min. typ. max. Unit Motor Supply Voltage Vmm 32 V Output Voltage VOUT 70 V Output Current IO 0.5 A Output Emitter Voltage VE 1.0 V Logic Supply Voltage VCC 4.75 5.25 V Chopping Frequency fchop 20 27 kHz Operating Temperature Top -25 120 ℃