AT5556

Preliminary Product Information

6-Channel DSC Motor Driver

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

Fax: 886-3-563-0879

7

04/12/10

Input-output logic table

Driver1,2: Stepping motor constant-voltage control for AF

Input

Output

IN1A

IN1B

IN2A

IN2B

OUT1A

OUT1B

OUT2A

OUT2B

Mode

L

L

L

L

Z

Z

Z

Z

Standby

H

L

L

L

H

L

Z

Z

H

L

H

L

H

L

H

L

L

L

H

L

Z

Z

H

L

L

H

H

L

L

H

H

L

L

H

L

L

L

H

Z

Z

L

H

L

H

L

H

L

H

L

L

L

H

Z

Z

L

H

H

L

L

H

H

L

L

H

1,2 phase

excitation

H

H

H

H

H

H

H

H

BRAKE

Stepping motor constant-voltage control for ZOOM or DC motor drive

Input

Output

IN3A

IN3B

IN4A

IN4B

OUT3A

OUT3B

OUT4A

OUT4B

Mode

L

L

L

L

Z

Z

Z

Z

Standby

HL

L

L

H

L

Z

Z

H

L

H

L

H

L

H

L

L

L

H

L

Z

Z

H

L

L

H

H

L

L

H

H

L

L

H

L

L

L

H

Z

Z

L

H

L

H

L

H

L

H

L

L

L

H

Z

Z

L

H

H

L

L

H

H

L

L

H

1,2 phase

excitation

H

H

H

H

H

H

H

H

BRAKE

VCM constant-current control for SH/AE or stepping motor drive

Input

Output

IN5A

IN5B

IN6A

IN6B

OUT5A

OUT5B

OUT6A

OUT6B

Mode

L

L

L

L

Z

Z

Z

Z

Standby

HL

H

L

LH

L

H

HL

H

L

LH

L

H

SH&AE

HH

L

L

HH

L

L

BRAKE