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© ANPEC Electronics Corp.

Rev . A. 5 - Jan , 2 0 1 6

APX7 3 1 1

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(a) Standby mode, VSP < VIL (0.9V : VSPLS=High OR OPEN) OR (0.5V : VSPLS=Low) standby mode is set.

The low side transistors are turned on at a regular frequency. (PWM carrier, duty 8%)

(b) Drive mode, VIL (1V : VSPLS=High OR OPEN) OR (0.6V : VSPLS=Low) < VSP< 7V.

When VSP pin voltage is VIL < VSP < VIH (4.8V TYP.), drive mode is set & the motor runs at PWM duty in accordance

with VSP.

When PWM duty reaches to the point of VIH, the duty is maximized (92%: TYP).

(c) Test mode, 8V < VSP < 10V(Max.)

Fu n ct ion D e scr ipt ion

VSP PIN Voltage Command With 3 Mode Control

Figure 1. VSP PIN Voltage Command With 3 Mode Control

LA input, which works with 0 to 5 V.

Lead Angle Control

0

10

20

30

40

50

60

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

(V)

(a)

(b)

(c)

92%

PWM Duty

VSP

1V

4.8V

8V

10V

0.6V

VSPLS=High OR OPEN

VSPLS=Low

7V