MC3479 Ver la hoja de datos (PDF) - Motorola => Freescale

Número de pieza

componentes Descripción

Fabricante

MC3479

Stepper Motor Driver

Motorola => Freescale 

MC3479

Figure 11. Typical Applications Circuit

+V

2.0 kΩ

Typ

Digital Inputs

Phase A

Clock

CW/CCW

Full/Half Step

OIC

Set

Normal

Operation

+V

1N5221A (3.0 V)

VM

11

16

VD

L1

1

3

7

MC3479

10

L2

2

L3

15

9

L4

8

4 5 12 13 6 14

Gnd

Bias/Set

RB

MC14049UB

or equivalent

Motor

Figure 12. Power Reduction

MC3479

6

Bias/Set

Normal

Operation

Reduced

Power

RB

RB1

MC14049UB

or equivalent

— Suggested value for RB1 (VM = 12 V) is 150 kΩ.

— RB calculation (see text) must take into account

the current through RB1.

8

MOTOROLA ANALOG IC DEVICE DATA

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