Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
RATINGS
SHINDENGEN
OUTLINE DIMENSIONS
(Unit : mm)
MTD Series
Stepping Motor Driver ICs
MTD2001 Case : ZIP-27
●Constant-current chopping function
(Off time fixed, self-oscillation)
●4-phase input
(with inhibit for simultaneously turn ON)
●An ENABLE function is provided
●Protection for penetration current
●Built-in overheating protection
(Alarm + shutdown)
FEATURES
●Absolute Maximum Ratings (Ta=25℃)
Item Symbol Ratings Unit
Output Voltage VCEO(SUS) 60 V
Output Current IO1.5 A
Logic Supply Voltage VCC 0～7V
Logic Input Voltage VIN 0～VCC V
Total Power Dissipation PT5W
Junction Temperature Tj 150 ℃
Storage Temperature Tstg -40～150 ℃
●Electrical Characteristics (Ta=25℃)
Item Symbol Test Conditions min. typ. max. Unit
Output Saturation Voltage(Upper side)
V
CE(sat)
H
Io=1.0A 1.0 1.4 V
Output Saturation Voltage(Lower side) VCE(sat)L Io=1.0A 1.0 1.3 V
Output Leakage Current(Upper side) IrHVmm=60V,Vout=0V 10 μA
Output Leakage Current(Lower side) IrL Vout=60V,VRS=0V 10 μA
Logic Supply Current(Standby) ICC(OFF) VCC=5V,VENA="H" 25 35 mA
Logic Supply Current(All Circuit ON) ICC(ON) VCC=5V,VENA="L" 55 75 mA
Input High Voltage VINH VCC = 5V 2.7 Vcc V
VENAH VCC = 5V 2.7 Vcc
Input Low Voltage VINL VCC = 5V GND 1.0 V
VENAL VCC = 5V GND 1.0
Logic High Input Current lINH VCC = 5V,VIN=5V 10 μA
lENAH VCC = 5V,VENA=5V 10
Logic Low Input Current lINL VCC = 5V,VIN=0V -10 -50 μA
lENAL VCC = 5V,VENA=0V -10 -50
Reference Input Current Iref VCC=5V,Vref=0V -1 -10 μA
Input Current(Current Sensor) Isense VCC=5V,VS=0V -1 -10 μA
Maximum Sensing Voltage VS(max.) VCC=5V 1.5 V
Thermal Alarm Cutoff Current Iralm VCC=5V,Valm=5V 10 μA
Thermal Alarm Output Current Ialm VCC=5V,Valm=0.5V 2 mA
Thermal Alarm Temperature Talm 125 ℃
Thermal Shutdown Temperature TTSD 150 ℃
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
MTD2001
Stepping Motor Driver ICs
●Equivalent Circuit・Basic Application Circuit ●Pin Assignment
●Setting of Output Current and Fixed Off Time
Fig.1 shows constant current chopping wave form.
○Output Current setting
○Fixed Off Time Setting
Toff=0.69・Ct・Rt
Io =R1+R2
R2 ・Rs
Vcc
Fig.1 Constant current wave form (Motor current / phase)
●True Table
ENA A or B IN 1 or 4 IN 2 or 3 Out 1 or 4 Out 2 or 3
LLLOFFOFF
LLHLH
LHLHL
LHHOFFOFF
H××
OFF OFF
× : don't care
●Recommended Operating Conditions （Ta=25℃）
Item Symbol min. typ. max. Unit
Motor Supply Voltage Vmm 10 50 V
Output Current IO1.2 A
Output Emitter Voltage VE1.5 V
Logic Supply Voltage VCC 4.75 5.25 V
Chopping Frequency fchop 20 27 kHz
Operating Temperature Top -25 120 ℃
●Recommended Parts Value
Symbol Recommended Value Unit
Rs 0.68 Ω
RF 2 kΩ
CF 1000 pF
Rt 15 kΩ
Ct 3300 pF
R1+R2 <10 kΩ
