Shindengen MTD2005 Stepping motor driver ic Datasheet

SHINDENGEN
Stepping Motor Driver ICs
MTD Series
OUTLINE DIMENSIONS
MTD2005F
Case : HSOP-28
(Unit : mm)
FEATURES
● Constant-current
chopping function
(Frequency fixed, separate-oscillation)
● 2-phase input
(ENA input is useful for half step drive)
● Selectable slow/fast current decay for
improved micro stepping
● A noise cancel function is provided
(No externally attached filter needed)
● Protection for penetration current
● Built-in thermal alarm
● Built-in flywheel diodes
RATINGS
●Absolute Maximum Ratings (Ta=25℃)
Item
Symbol
V CEO(SUS)
IO
V CC
V IN
PT
Tj
Tstg
Output Voltage
Output Current
Logic Supply Voltage
Logic Input Voltage
Total Power Dissipation
Junction Temperature
Storage Temperature
●Electrical Characteristics (Ta=25℃)
Item
Output Saturation Voltage(Upper side)
Output Saturation Voltage(Lower side)
Output Leakage Current(Upper side)
Output Leakage Current(Lower side)
Logic Supply Current(Standby)
Logic Supply Current(All Circuit ON)
Phase"H"Input Voltage
Phase"L"Input Voltage
Phase"H"Input Current
Phase"L"Input Current
Enable”H”Input Voltage
Enable”L”Input Voltage
Enable”H”Input Current
Enable”L”Input Current
DECAY”H”Input Voltage
DECAY”L”Input Voltage
DECAY”H”Input Current
DECAY”L”Input Current
Reference Input Current
Input Current(Current Sensor)
Maximum Sensing Voltage
Pulse Blanking Time
Thermal Alarm Cutoff Current
Thermal Alarm Output Current
Thermal Alarm Temperature
Symbol
Test Conditions
V CE (sat)H Io=0.8A
V CE (sat)L Io=0.8A
Ir H
Vmm=60V,Vout=0V
I rL
Vout=60V,V RS=0V
I CC (OFF) Vcc=5V,V ENA="H"
I CC (ON) Vcc=5V,V ENA="L"
VphaH V CC = 5V
VphaL V CC = 5V
IphaH V CC = 5V,Vpha=5V
IphaL V CC = 5V,Vpha=0V
V ENAH V CC =5V
V ENAL V CC =5V
I ENAH V CC =5V,V ENA=5V
I ENAL V CC =5V,V ENA=0V
V DECH V CC =5V
V DECL V CC =5V
I DECH V CC =5V,V DEC =5V
I DECL V CC =5V,V DEC =0V
Iref
V CC =5V,Vref=0V
Isense V CC =5V,V S=0V
V S(max.) V CC =5V
tb
V CC =5V,Ct=3300pF
Iralm V CC =5V,Valm=5V
Ialm
V CC =5V,Valm=0.5V
Talm
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
Ratings
60
1.0
0~6
0~V CC
3
150
-40~150
min.
Unit
V
A
V
V
W
℃
℃
typ.
max.
1.0
1.4
1.0
1.4
10
10
19
26
25
33
Vcc
0.8
10
-150
2.7
GND
-100
2.7
Vcc
GND
0.8
10
-100
-150
2.7
Vcc
GND
0.8
10
-200
-1
-1
-300
-10
-10
1.0
1.35
10
2
140
Unit
V
V
μA
μA
mA
mA
V
V
μA
μA
V
V
μA
μA
V
V
μA
μA
μA
μA
V
μs
μA
mA
℃
Stepping Motor Driver ICs
MTD2005F
● Equivalent Circuit・Basic Application Circuit
●Pin Assignment
●True Table
ENA A or B
L
L
H
●Recommended Parts Value
ENA A or B
L
H
×
Out 1 or 4
L
H
OFF
Out 2 or 3
H
L
OFF
Symbol
Rs
Rt
Ct
R1+R2
× : don't care
Recommended Value
0.68
13
4700
<10
Unit
Ω
kΩ
pF
kΩ
●True Table for Current Decay
DECAY
Current Decay Mode
L
H
FAST (Sink+Source Chopping)
SLOW (Source Chopping)
●Setting of Output Current and Chopping Frequency
Fig.1 shows constant current chopping wave form.
Fig.1 Constant current wave form (Motor current / phase)
○Output Current setting
Io =
R2
Vcc
・
R1+R2
Rs
○Chopping Frequency Setting
f =
1
0.72・Ct・Rt
●Recommended Operating Conditions (Ta=25℃)
Item
Motor Supply Voltage
Output Current
Output Emitter Voltage
Logic Supply Voltage
Chopping Frequency
Operating Temperature
Symbol
Vmm
Io
min.
typ.
VE
Vcc
fchop
Top
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
4.75
max.
50
0.8
1
5.25
20
-25
120
Unit
V
A
V
V
kHz
℃
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