Data brief

For further information contact your local STMicroelectronics sales office.

November 2010

Doc ID 18271 Rev 1

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STEVAL-SPMD150V2

1.5 A bipolar stepper motor drive module (SPMD150STP)

demonstration board

Features

demonstration

– Normal/half-step sequence and

microstepping

– Fast/slow decay

– Forward/reverse

– Enable

acceleration/deceleration ramp, running and

stop mode

sequences

Description

This STEVAL-SPMD150V2 demonstration board

is designed for evaluating the performance and

the features of the SPMD150STP module. The

board works in conjunction with the PractiSPIN™

HW and the PractiSPIN™.spmd SW, which allow

the user to operate with the SPMD150STP

module.

The SPMD150STP is part of the EASY

POWER™ series of fully integrated modules

designed to drive bipolar permanent-magnet

stepper motors.

All EASY POWER modules offer an easy-to-use,

fully-protected solution to implement precise

position control, with high torque at rest, and

without the need for external components. The

module operates over a wide 12 V to 40 V input

voltage range and supports an output maximum

current of 1.5 A.

The SPMD150STP implements full/half-step and

microstepping driving capability, working at a

variable chopper frequency. It is possible to select

between fast and slow decay current. The module

internally generates the phase sequence,

significantly reducing the burden on the controller.

Integration of a power MOSFET stage

significantly reduces both commutation and

conduction losses. The SPMD150STP offers

complete output protection against all types of

short conditions. The metal package acts as an

integrated heatsink, with no ventilation or

additional components required. The metal case

also isolates the inner circuit from external

agents, making the module suitable for operation

in harsh environments.

The STEVAL-SPMD150V1 supports the following

measurements and demonstrations: full/half-step,

microstepping, CW/CCW, control behavior, motor

current waveforms and measurements,

movement sequences.

STEVAL-SPMD150V2

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)