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MTD2003 Fiches technique(PDF) 2 Page - Shindengen Electric Mfg.Co.Ltd

No de pièce MTD2003
Description  Stepping Motor Driver ICs
PDF  2 Pages
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Fabricant  SHINDENGEN [Shindengen Electric Mfg.Co.Ltd]
Site Internet  http://www.shindengen.co.jp/
Logo SHINDENGEN - Shindengen Electric Mfg.Co.Ltd

MTD2003 Fiches technique(HTML) 2 Page - Shindengen Electric Mfg.Co.Ltd

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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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