mtd2005f Shindengen Electric Manufacturing Co.,Ltd, mtd2005f Datasheet - Page 2

• Manufacturer Part Number: mtd2005f
• Description: Stepping Motor Driver Ics
• Manufacturer: Shindengen Electric Manufacturing Co.,Ltd

Stepping Motor Driver ICs
D Equivalent CircuitnBasic Application Circuit
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
DSetting of Output Current and Chopping Frequency
Fig.1 shows constant current chopping wave form.
¾Output Current setting
@Chopping Frequency Setting
Motor Supply Voltage
Output Current
Chopping Frequency
ÂTrue Table
ÂTrue Table for Current Decay
ÂRecommended Operating Conditions èTa=25Äé
Output Emitter Voltage
Logic Supply Voltage
Operating Temperature
ENA A or B
DECAY
Io =
f =
H
L
H
L
L
0.72nCtnRt
R1+R2
R2
ENA A or B
1
n
H
L
: don't care
FAST (Sink+Source Chopping)
Vcc
Rs
SLOW (Source Chopping)
Item
Current Decay Mode
Out X or 4
OFF
H
L
Out 2 or 3
OFF
H
L
Symbol
fchop
Vmm
Vcc
Top
V
Io
E
ÂRecommended Parts Value
4.75
Symbol
min.
-25
RX+R2
Rs
Ct
Rt
Fig.1 Constant current wave form (Motor current / phase)
typ.
20
Recommended Value
4700
0.68
<X0
X3
max.
5.25
X20
DPin Assignment
0.8
50
X
Unit
kHz
MTD2005F
Ä
V
V
A
V
Unit
k-
k-
pF
-