STK672-040 Sanyo Semicon Device, STK672-040 Datasheet - Page 7

• Manufacturer Part Number: STK672-040
• Description: Microstep Operation-Supported 4-Phase Stepping Motor Driver (Io= 1.5A)
• Manufacturer: Sanyo Semicon Device

3. Explanation of output pins
4. Functions and timing of output signals
2-6. M4 and M5 (Setting of rotation vector locus at micro-step)
2-7. RESET (Reset of entire system)
2-8. Vref(Setting of the current value used as the reference of constant current detection)
4-1. A, A, B, and B (Output for phase exciting use of motor)
4-2. MO1, MO2, and MOI (Monitor of exciting state)
19
20, 21
For the current division ratio, see Section 4.3.
1. Pin format
2. Function
1. Pin format
2. Function
1. Function
1. Pin format
2. Function
Pin No.
Mode
M4
M5
MoI
Mo1, Mo2
Phase coordinate
Mo1
Mo2
Name
Real circle
1
1
Phase exciting origin monitor
Phase exciting state monitor
CMOS Schmitt configuration containing the pull-up resistor
All circuit states are set to the initial values by setting the RESET signal to the
Analog input configuration
By applying the voltage of 2.5 V or less of the control system power source
The constant current can be controlled in proportional to the Vref voltage with
In four phase two exciting mode, the interval of 3.75 s (typical value)
CMOS standard configuration
Outputs the state of the current phase exciting output.
(20 k typical value)
low state (pulse width of 10 s or more). At this time, for all modes including
the exciting mode, the A and B phases are set to the origin.
Vcc2, the constant current control can be performed over the exciting current of
the motor at the 100% of the rated current value.
this value specified as a high limit.
is set when the output signals of the phases A and A, B and B change.
For the MOI, 0 is output at the origin of each phase.
A phase
0
0
1
0
At other points, 1 is output.
STK672-040
Function
B phase
1
0
0
1
A phase
0
1
0
0
CMOS standard configuration
CMOS standard configuration
B phase
1
1
Pin format
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