STK672-430A-E Sanyo Semicon Device, STK672-430A-E Datasheet - Page 12

• Manufacturer Part Number: STK672-430A-E
• Description: 2-phase Stepping Motor Driver
• Manufacturer: Sanyo Semicon Device

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Input voltage specifications are as follows.
<Configuration of the Vref input pin>
<FAULT1, FAULT2 output>
[MOI output]
The output frequency of this excitation monitor pin varies depending on the excitation mode. For output operations, see
the timing chart.
FAULT1 Output
FAULT2 output
Output is resistance divided (2 levels) and the type of abnormality detected is converted to the corresponding output
voltage.
Abnormality detection can be released by a RESETB operation or turning V DD voltage on/off.
FAULT1 is an open drain output. Low is output if either overcurrent or overheating is detected.
V IH =2.5Vmin
V IL =0.8Vmax
• Overcurrent: 2.5V(typ)
• Overheat: 3.3V(typ)
Vref/4.9
V SS
Amplifier
100k Ω
+
-
V SS
Input pin
Pin 19
STK672-430A-E
Output pin
Pin 16
(The buffer has an open drain configuration.)
<Configuration of the FAULT1 output pin>
Thermal shutdown
V SS
5V
Overcurrent
No.A1127-12/21
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