Shindengen Electric Manufacturing Company Ltd MTD1110 Datasheet

SHINDENGEN
Stepping Motor Driver ICs
MTD1110
FEATURES
Constant-current chopping function
(Off time fixed, self-oscillation)
4-phase input
(with inhibit for simultaneously turn ON)
An ENABLE function is provided
Built-in overheating protection
(Alarm + shutdown)
Built-in flywheel diodes
RATINGS
MTD Series
OUTLINE DIMENSIONS
(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 Output Leakage Current Logic Supply Current(Standby) Logic Supply Current(All Circuit ON) Input High Voltage
Input Low Voltage
Logic High Input Current
Logic Low Input Current
Reference Input Current Input Current(Current Sensor) Maximum Sensing Voltage Thermal Alarm Cutoff Current Thermal Alarm Output Current Thermal Alarm Temperature Thermal Shutdown Temperature
VCE(sat)
I
CER
ICC(OFF)
ICC(ON)
V
INH
V
ENAH
V
INL
V
ENAL
l
INH
l
ENAH
l
INL
l
ENAL
Iref
Isense
VS(max.)
Iralm
Ialm
Talm
T
TSD
V
CEO(SUS)
I
V
V
P
O
CC
IN
T
80 V
2A
07V
0V
CC
5W
Tj 150
Tstg -40~150
Test Conditions min. typ.
Io=1.5A 1.11.4 V
=80V 10
CER
VCC=5V,V VCC=5V,V VCC = 5V 2.7 Vcc VCC = 5V 2.7 Vcc VCC = 5V GND 1.0 VCC = 5V GND 1.0 VCC = 5V,VIN=5V 10 VCC = 5V,V VCC = 5V,VIN=0V -10 -50 VCC = 5V,V VCC=5V,Vref=0V -1 -50 VCC=5V,VS=0V -1 -50 VCC=5V 1.0 VCC=5V,Valm=5V 10 VCC=5V,Valm=0.5V 2
="H" 20 40
ENA
="L" 40 60
ENA
=5V 10
ENA
=0V -10-100
ENA
125 150
max. Unit
V
V
μA
mA mA
V
V
μA
μA
μA
V
μA
mA
℃ ℃
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
Stepping Motor Driver ICs
MTD1110
Equivalent CircuitBasic Application Circuit ●Pin Assignment
True Table
ENA IN A or B IN A or B Out A or B Out A or B
LLLOFFOFF LLHOFFON LHLONOFF LHHOFFOFF H
××
× : don't care
OFF OFF
Setting of Output Current and Fixed Off Time
Fig.1 shows constant current chopping wave form.
Output Current setting
Io =
Fixed Off Time Setting
R2
R1+R2
Vcc
Rs
Toff=0.69・CtRt
Recommended Parts Value
Symbol Recommended Value Unit
Rs 0.68 Ω
RF 1 CF 3300 pF
Rt 8.2 kΩ
Ct 3300 pF Vz Vmm×1.2~1.5 V
R1+R2 <10kΩ
Fig.1 Constant current wave form (Motor current)
Recommended Operating Conditions (Ta=25℃)
Item Symbol min. typ. max. Unit
Motor Supply Voltage Output Voltage Output Current Output Emitter Voltage Logic Supply Voltage Chopping Frequency Operating Temperature
Vmm V
V
V
fchop
Top
Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd
OUT
I
O
E
CC
32 70
1.5
1.0
4.75 5.25 20 27
-25 120
V V A V V
kHz