FAN8033 データシートの表示（PDF） - Fairchild Semiconductor

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FAN8033

6-Channel Motor Drive IC

Fairchild Semiconductor 

FAN8033

6. TRAY, CHANGE MOTOR DRIVE PART

out 1

M

out 2

24 26

25 27

D

D

CTL1, 2

12 15

LEVEL SHIFT

M.S.C

S.W

IN

FWD

13 16

IN

REV

14 17

• Rotational direction control

The forward and reverse rotational direction is controlled by FWD (pin 13, 16) and REV (pin 14, 17) input conditions are as

follows.

INPUT

OUTPUT

FWD

REV

OUT 1

OUT 2

State

H

H

Vr

Vr

Brake

H

L

H

L

Forward

L

H

L

H

Reverse

L

L

Vr

Vr

Brake

• where Vr is (Vcc - Vbe) / 2 = 3.65V (at Vcc=8V)

• where Out1 pins are pins 24 and 26, and out2 pins aer pins 25 and 27

• Motor speed control

- The almost maximum torque is obtained when it is used with the pins 12 and 15 (CTL1, 2) open.

- If the torque of the motor is too low, then the applied voltage at pins 12 and 15 (CTL1, 2) are 0[V].

- When motor speed controlled, the applied voltage of the pins 12 and 15 (CTL1, 2) is between 0 and 4V.

Also, if the speed control is constant, the applied voltage of the pins 12 and 15 (CTL1, 2) is between 4 and 5V.

- This IC's applied maximum voltage is 6V when VCC is 8V.

- You must not use the applied CTL1, 2 voltage above 5.8V when VCC is 8V, and 3V when VCC is 5V.

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