參數(shù)資料
型號(hào): MTD2005F
廠商: Shindengen Electric Manufacturing Company, Ltd.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Stepping Motor Driver ICs
中文描述: 步進(jìn)電機(jī)驅(qū)動(dòng)器IC
文件頁(yè)數(shù): 2/2頁(yè)
文件大?。?/td> 445K
代理商: MTD2005F
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
MTD2005
Stepping Motor Driver ICs
Setting of Output Current and Chopping Frequency
Fig.1 shows constant current chopping wave form.
Output Current setting
Chopping Frequency Setting
Equivalent Circuit
Basic Application Circuit
Pin Assignment
f
=
1
0.72
Ct
Rt
Io
=
R1+R2
R2
Rs
Vcc
Fig.1 Constant current wave form (Motor current / phase)
True Table
ENA A or B
L
L
H
ENA A or B
L
H
×
Out
1
or 4
L
H
OFF
Out 2 or 3
H
L
OFF
×
: don't care
Recommended Parts Value
Symbol
Rs
Rt
Ct
R
1
+R2
Recommended Value
0.68
1
3
4700
<
1
0
Unit
Ω
k
Ω
pF
k
Ω
Recommended Operating Conditions
Ta=25
℃)
Item
Motor Supply Voltage
Output Current
Output Emitter Voltage
Logic Supply Voltage
Chopping Frequency
Operating Temperature
Symbol
Vmm
Io
V
E
Vcc
fchop
Top
min.
typ.
max.
50
1
1
5.25
Unit
V
A
V
V
kHz
4.75
20
-25
1
20
True Table for Current Decay
L
H
FAST (Sink+Source Chopping)
SLOW (Source Chopping)
DECAY
Current Decay Mode
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