Copyright

© ANPEC Electronics Corp.

Rev. P.1- Aug., 2015

APX7320

www.anpec.com.tw

10

Preliminary

The APX7320 has two input pin VSP and MIN to control output duty of driver for the rotation speed of motor. The input

of MIN pin is for the minimum output duty setting, and the VSP is for motor speed control.

Function Description

VSP and MIN Output Duty Control

Figure1: Voltage Mode Output Duty Control

The APX7320 also support direct PWM input signal speed control. When the MIN pin pulled up to 5VREG, the VSP will

be PWM input pin to control the output duty directly.

VSP Direct PWM Control

Figure2: Direct PWM Mode Output Duty Control

VSP

5

4.5

1.5

0.8

50%

25%

75%

100%

Output Duty

MIN=0V

MIN=1.25V

MIN=2.5V

MIN=3.75V

VSP

5

4.5

1.5

0.8

50%

25%

75%

100%

Output Duty

MIN=0V

MIN=1.25V

MIN=2.5V

MIN=3.75V

0

0%

VSP 5V to 0V

VSP 0V to 5V

PWM Duty

100%

50%

25%

75%

100%

Output Duty

0

0%