MC33030P datasheet(11/16 Pages) ONSEMI

Il numero della parte	MC33030P

Spiegazioni elettronici	DC SERVO MOTOR CONTROLLER/DRIVER

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Produttore elettronici	ONSEMI [ON Semiconductor]

Homepage	http://www.onsemi.com

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11 / 16 page

MC33030

11

MOTOROLA ANALOG IC DEVICE DATA

20 k

For 60 Hz R = 53.6 k, C = 0.05

Vin

20 k

7

8

VB

R2

R3

R4

VA

R

C

R/2

2C

C

R

8

7

6

Figure 25. Notch Filter

Figure 26. Differential Input Amplifier

Error Amp

–

9

R1

6

+

9

–

+

20 k

f

notch +

1

2

pRC

V

Pin 6 +

V

A

R

3 )

R

4

R

1 )

R

2

R

2

R

3

–

R

4

R

3

V

B

R1

R

VRef

R +

∆R

R

VB

6

20 k

R2

Set

Temperature

Cabin

Temperature

Sensor

VCC

R4

R3

R2

T

R1

VCC

1

6

7

8

7

VA

20 k

Figure 27. Temperature Sensing Servo System

–

R4

–

Error Amp

+

9

+

Error Amp

In this application the servo motor drives the

heat/air conditioner modulator door in a duct system.

9

R3

V

Pin 6 +

R

4

R

3

(V

A

–V

B

)

V

Pin 6 +

V

CC

R

4

R

3

) 1

R

1

R

2

) 1

V

A *

V

B +

V

Ref

DR

4R

) 2DR

R

1 +

R

3

,R

2 +

R

4

,R

1 uu

R

Figure 28. Bridge Amplifier

CDLY

16

4.7 k

VCC

LM311

ROC

15

7

1

8

4

2

3

VRef

Vin

+

O.C.

R

S

Q

7.5 V

470

A

D2

D1

Q

RE

D2

RE

Figure 29. Remote Latched Shutdown

VCC

Motor

A direction change signal is required at Pins 2 or 3 to

reset the over–current latch.

R

E [

VF(D

1

) ) VF(D

2

)–VBE(ON)

IMOTOR–IDRV(max)

+

B

This circuit maintains the brake and over–current

features of the MC33030. Set ROC to 15 k for

IDRV(max) ≈ 0.5 A.

From Drive

Outputs

Figure 30. Power H–Switch Buffer

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