SPMD250STP datasheet(1/29 Pages) STMICROELECTRONICS

Part #	SPMD250STP

Description	2.5 A bipolar stepper motor drive module

PDF	29 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 29 page

January 2008

Rev 1

1/29

29

SPMD250STP

2.5 A bipolar stepper motor drive module

Features

■ Wide supply voltage range

■ Full/Half step drive capability

■ Logic signals TTL/CMOS compatible

■ Programmable motor phase current and

chopper frequency

■ Selectable Slow/Fast current decay

■ Synchronization for multimotor applications

■ Remote shut-down

■ Home position indication

Description

The SPMD250STP is a drive module that directly

interface a microprocessor to a two phase,

bipolar, permanent magnet stepper motors.

The phase current is chopper controlled, and the

internal phase sequence generation reduces the

burden of the controller and it simplifies software

development. The SPMD250STP has PowerMOS

outputs to significantly reduce both commutation

and conduction losses. A further benefit offered

by the SPMD250STP is the complete protection

of the outputs against any type of shorts.

Table 1.

Device summary

Order code

SPMD250STP

www.st.com

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