GS-D500A Datasheet, PDF (1/10 Pages) STMicroelectronics – 100V/5A STEP AND MICROSTEP DRIVE BOARD FOR STEPPER MOTORS

GS-D500A
100V/5A STEP AND MICROSTEP DRIVE BOARD
FOR STEPPER MOTORS
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
Vs
DC Supply Voltage
Vss
DC Logic Supply Voltage
lph
Output Current per Bridge
li
Logic Input Current
Vis
Tstg
Thop
Isolation Voltage
Storage Temperature Range
Operating Heatsink Temperature
Note: Absolute maximum ratings are limit values above which the unit can be permanently damaged
* Thermal protection intervention @ Th > 90°C
Value
110
13
6
30
500
– 20 to +85
+85
Unit
V
V
Apk
mA
V
°C
°C
June 1994
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