STK672-640C-E Datasheet, PDF (13/27 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC 2-phase Stepping Motor Driver

STK672-640C-E
[MODE1 and MODE2 (Excitation mode selection)]
MODE1=0: 2-phase excitation
MODE2=1: Rising edge of CLOCK
MODE1=1: 1-2 phase excitation
MODE2=0: Rising and falling edges of CLOCK
See the timing charts for details on output operation in these modes.
Note: The state of the MODE input must not be changed during the 5μs period before and after the rising edge of the
CLOCK input.
The CLOCK input must not be changed during the period from when the signal changes from high to low or low
to high in MODE1 or MODE2, till when the signal changes from high to low or low to high in CWB.
[Configuration of Each Input Pin]
<Configuration of the MODE1, MODE2, CLOCK,
CWB, ENABLE, and RESETB input pins>
<Configuration of the FAULT2 pin>
10kΩ
5V
Output pin
Pin 8
5V
50kΩ
50kΩ ^{Opened motor pin}
Input pin
100kΩ
50kΩ ^Overcurrent
VSS
Thermal shutdown
(Configuration of the buffer is open drain.)
All input pins of this driver support schmitt input. Typ specifications at Tc = 25°C are given below. Hysteresis voltage
is 0.3V (VIHa-VILa).
When rising
1.8V typ
Input voltage
When falling
1.5V typ
VIHa
VILa
Input voltage specifications are as follows.
VIH=2.5V min
VIL=0.8V max
<Configuration of the Vref input pin>
Vref/4.9
−
+
Amplifier
VSS
Input pin
Pin 19
<Configuration of the FAULT1 output pin>
Output pin
Pin 16
5V
VSS
Opened motor pin
Overcurrent
Thermal shutdown
No. A2116-13/27