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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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MTD2003 데이터시트(PDF) 2 Page - Shindengen Electric Mfg.Co.Ltd |
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MTD2003 데이터시트(HTML) 2 Page - Shindengen Electric Mfg.Co.Ltd |
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2 / 2 page  Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd MTD2003 Stepping Motor Driver ICs ● Equivalent Circuit・Basic Application Circuit ● Pin Assignment ● Setting of Output Current and Chopping Frequency Fig.1 shows constant current chopping wave form. ○ Output Current setting ○ Chopping Frequency Setting Fig.1 Constant current wave form (Motor current / phase) Io(100%) = - Vr 0.015 10・Rs f = 1 0.72・Ct・Rt ●True Table IN 1 or 4 IN 2 or 3 Out 1 or 4 Out 2 or 3 LL OFF OFF LH LH HL HL HH OFF OFF ●Recommended Parts Value Symbol Recommended Value Unit Rs 0.68 Ω Rt 18kΩ Ct 3300 pF Vr Vcc V ●Recommended Operating Conditions （Ta=25℃） Item Symbol min. typ. max. Unit Motor Supply Voltage Vmm 27 V Output Current Io 1 A Logic Supply Voltage Vcc 4.75 5.25 V Chopping Frequency fchop 20 kHz Operating Temperature Top -25 120 ℃ ●True Table for Current Chopping Level Vref（V） （Vr=5V） LL 100 0.5±5％ H L 70 0.35±8％ L H 33 0.17±10％ HH 0 Io I1 Current Level（％） |
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