STK672-442BN-E

No.A2249-14/28

<Configuration of the Vref input pin>

<Configuration of the FAULT1 output pin>

Output pin

Pin16

VDD

VSS

Overheating

Overcurrent

Motor terminal open

Vref/4.9

VSS

Amplifier

Input pin

Pin19

<FAULT1, FAULT2 output>

FAULT1 Output

FAULT1 is an open drain output. It outputs low level when any of motor terminal open, overcurrent, or overheat is

detected.

FAULT2 output

Output is resistance divided (3 levels) and the type of abnormality detected is converted to the corresponding output

voltage.

Motor terminal open: 10mV (typ)

Overcurrent: 2.5V (typ)

Overheat: 3.3V (typ)

Abnormality detection can be released by a RESETB operation or turning VDD voltage on/off.

1-9. [MOI output]

The output frequency of this excitation monitor pin varies depending on the excitation mode. For output operations, see

the timing chart.