mtd2005 Shindengen Electric Manufacturing Co.,Ltd, mtd2005 Datasheet - Page 2

• Manufacturer Part Number: mtd2005
• Description: Stepping Motor Driver Ics
• Manufacturer: Shindengen Electric Manufacturing Co.,Ltd

Stepping Motor Driver ICs
● Equivalent Circuit・Basic Application Circuit
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
●Setting of Output Current and Chopping Frequency
Fig.1 shows constant current chopping wave form.
○Output Current setting
○Chopping Frequency Setting
●True Table
●True Table for Current Decay
Motor Supply Voltage
Output Current
Output Emitter Voltage
Logic Supply Voltage
Chopping Frequency
Operating Temperature
●Recommended Operating Conditions （Ta=25℃）
ENA A or B
DECAY
Io =
f =
H
L
H
L
L
0.72・Ct・Rt
R1+R2
R2
ENA A or B
1
・
×
H
L
× : don't care
FAST (Sink+Source Chopping)
Vcc
Rs
SLOW (Source Chopping)
Current Decay Mode
Item
Out 1 or 4
OFF
H
L
Out 2 or 3
OFF
H
L
Symbol
fchop
Vmm
Top
Vcc
V
Io
●Recommended Parts Value
E
Symbol
R1+R2
Ct
Rs
Rt
Fig.1 Constant current wave form (Motor current / phase)
4.75
min.
-25
Recommended Value
4700
0.68
typ.
<10
13
20
●Pin Assignment
max.
5.25
120
50
1
1
MTD2005
Unit
kΩ
kΩ
pF
Ω
Unit
kHz
℃
V
V
A
V