GS-D500A

100V/5A STEP AND MICROSTEP DRIVE BOARD

FOR STEPPER MOTORS

June 1994

1/10

FEATURES

100V Operating Supply Voltage

5A/phase peak current

5, 25, 125 microsteps/step

Full step and half step operation

User selectable phase current

90

° out of phase chopping to save power con-

sumption

Galvanic isolation

Full output protection against short-circuits

Thermal and undervoltage protection

Step clock in excess of 200kHz

Fault indication output

Special circuit to reduce midrange instability

DESCRIPTION

The GS-D500A is a member of the SGS-THOM-

SON family of stepper motor driver modules and

boards. It drives motors in full step, half step and

microstep mode.

On top of that if offers an unusua lly large number

of features that allow a complete control of the

electromechanical characteristics of the motion

system to obtain optimum performance.

The powermos output stages offer both low con-

duction and commutation losses for increased effi-

ciency; this, combined with a complete protection

scheme, results in an extremely rugged unit suit-

able for harsh environment operation.

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Vs

DC Supply Voltage

110

V

Vss

DC Logic Supply Voltage

13

V

lph

Output Current per Bridge

6Apk

li

Logic Input Current

30

mA

Vis

Isolation Voltage

500

V

Tstg

Storage Temperature Range

– 20 to +85

°C

Thop

Operating Heatsink Temperature

+85

°C

Note: Absolute maximum ratings are limit values above which the unit can be permanently damaged

* Thermal protection intervention @ Th > 90

°C