參數(shù)資料
型號: MTD2003
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)動器IC
文件頁數(shù): 2/2頁
文件大小: 425K
代理商: MTD2003
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
L
L
H
H
IN 2 or 3
L
H
L
H
Out
1
or 4
OFF
L
H
OFF
Out 2 or 3
OFF
H
L
OFF
Recommended Parts Value
Symbol
Recommended Value
Rs
Rt
Ct
Vr
Unit
Ω
k
Ω
pF
V
0.68
1
8
3300
Vcc
Recommended Operating Conditions
Ta=25
℃)
Item
Motor Supply Voltage
Output Current
Logic Supply Voltage
Chopping Frequency
Operating Temperature
Symbol
Vmm
Io
Vcc
fchop
Top
min.
typ.
max.
27
1
5.25
Unit
V
A
V
kHz
4.75
20
-25
1
20
True Table for Current Chopping Level
Vref
V
Vr=5V
0.5
±
5
0.35
±
8
0.
1
7
±1
0
L
H
L
H
L
L
H
H
1
00
70
33
0
Io
I
1
Current Level
(%)
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