STK672-040 Sanyo Semicon Device, STK672-040 Datasheet - Page 6

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

2-3. RETURN (It forcibly returns the phase to the origin of current exciting phase.)
2-4. ENABLE(ON/OFF control of exciting drive output A, A, B, and B and selection of
2-5. M1, M2, and M3 (Selection of exciting modes and clock input edge timing)
1. Pin format
2. Noise eliminating circuit is contained.
3. Function
1. Pin format
2. Function
1. Pin format
2. Functions
3. Valid timing of mode setting
M3
operation/hold state in HI-IC)
a. When the ENABLE signal is set to a high state or it is opened.
b. When the ENABLE signal is set to a low state
1
0
M2
M1
1-2 phase exciting
2 phase exciting
It is usually placed in the operation status.
The H-IC is placed into the hold state, forcing the exciting drive output to be turned off.
At this time, the system clock of the HC stops, the H-IC is not affected if the input pin other
than the reset input changes.
0
0
W1-2 phase exciting
CMOS Schmitt configuration containing pull-up resistor
Forces to moves to the origin of current exciting phase by
CMOS Schmitt configuration containing pull-up resistor
CMOS Schmitt configuration containing the pull-up resistor
The mode must not be changed within 5 s from the leading edge and
(20k , typical value)
setting the RETURN signal to high state.
(20 k , typical value)
(20 k typical value)
trailing edge of the clock.
1-2 phase exciting
0
1
STK672-040
2W1-2 phase exciting 4W1-2 phase exciting Leading edge and trailing edge
W1-2 phase exciting
1
0
2W1-2 phase exciting Only the leading edge
1
1
Phase switching clock edge timing
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