Shindengen Electric Manufacturing Company Ltd MTD2005F Datasheet
SHINDENGEN
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Stepping Motor Driver ICs
MTD2005F
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
MTD Series
OUTLINE DIMENSIONS
Case : HSOP-28
(Unit : mm)
●Absolute Maximum Ratings (Ta=25℃ )
Item Symbol Ratings Unit
Output Voltage
Output Current
Logic Supply Voltage
Logic Input Voltage
Total Power Dissipation
Junction Temperature
Storage Temperature
●Electrical Characteristics (Ta=25℃ )
Item Symbol
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
(sat)H
CE
VCE(sat)L
Ir
H
I
rL
ICC(OFF)
ICC(ON)
VphaH
VphaL
IphaH
IphaL
V
ENAH
V
ENAL
I
ENAH
I
ENAL
V
DECH
V
DECL
I
DECH
I
DECL
Iref
Isense
VS(max.)
tb
Iralm
Ialm
Talm
V
CEO(SUS)
I
V
V
P
O
CC
IN
T
60 V
1.0 A
0～6V
0～V
CC
3W
Tj 150 ℃
Tstg -40～150 ℃
Test Conditions min. typ.
Io=0.8A 1.0 1.4
Io=0.8A 1.0 1.4
Vmm=60V,Vout=0V 10
Vout=60V,VRS=0V 10
Vcc=5V,V
Vcc=5V,V
VCC = 5V 2.7 Vcc
VCC = 5V GND 0.8
VCC = 5V,Vpha=5V 10
VCC = 5V,Vpha=0V -100 -150
VCC=5V 2.7 Vcc
VCC=5V GND 0.8
VCC=5V,V
VCC=5V,V
VCC=5V 2.7 Vcc
VCC=5V GND 0.8
VCC=5V,V
VCC=5V,V
VCC=5V,Vref=0V -1 -10
VCC=5V,VS=0V -1 -10
VCC=5V 1.0
VCC=5V,Ct=3300pF 1.35
VCC=5V,Valm=5V 10
VCC=5V,Valm=0.5V 2
="H" 19 26
ENA
="L" 25 33
ENA
=5V 10
ENA
=0V -100 -150
ENA
=5V 10
DEC
=0V -200 -300
DEC
140
max. Unit
V
V
V
μA
μA
mA
mA
V
V
μA
μA
V
V
μA
μA
V
V
μA
μA
μA
μA
V
μs
μA
mA
℃
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
Stepping Motor Driver ICs
MTD2005F
● Equivalent Circuit・Basic Application Circuit ●Pin Assignment
●True Table
ENA A or B ENA A or B Out 1 or 4 Out 2 or 3
LLLH
LHHL
H
×
× : don't care
OFF OFF
●True Table for Current Decay
DECAY Current Decay Mode
L FAST (Sink+Source Chopping)
H SLOW (Source Chopping)
●Setting of Output Current and Chopping Frequency
Fig.1 shows constant current chopping wave form.
○Output Current setting
Io =
○Chopping Frequency Setting
f =
R2
R1+R2
0.72・Ct・Rt
Vcc
・
Rs
1
●Recommended Parts Value
Symbol Recommended Value Unit
Rs 0.68 Ω
Rt 13kΩ
Ct 4700 pF
R1+R2 <10kΩ
Fig.1 Constant current wave form (Motor current / phase)
●Recommended Operating Conditions （Ta=25℃）
Item Symbol min. typ. max. Unit
Motor Supply Voltage Vmm 50 V
Output Current Io 0.8 A
Output Emitter Voltage
Logic Supply Voltage Vcc 4.75 5.25 V
Chopping Frequency fchop 20 kHz
Operating Temperature Top -25 120 ℃
E
V
1
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
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