User Manual

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Revision 1.6

2018-11-27

EVAL-M1-101T User Manual

iMOTION™ Modular Application Design Kit

Hardware description of EVAL-M1-101T

Motor speed can be calculated as shown below.

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�������������������� ������������ ����������������������������������������

For example, PGOUT frequency is about 80 Hz and Pulse per Revolution is 6, and then the motor speed will be

800 RPM.

By default, VDD is 3.3V for EVAL-M1-101T. The input of VSP and PGOUT (pulse generation output) should be

limited within the voltage range of 0 and 3.3V. While for some application, PGOUT should be connected to

speed measurement circuit. The evaluation board EVAL-M1-101T provides FG (Frequency Generation) signal

with an open drain structure controlled by PGOUT as shown in Figure 23. And FG signal can be pull up to 30V.

The frequency of FG is the same as PGOUT, and the calculation equation for motor speed is the same.

Figure 23

VSP Input Connector and level shit schematic for FG

VSP

1

2

3

4

JP2

+3.3V

+3.3V

GND

Q1

IRLML2030

R21

100R

FG

PGOUT

GND

FG