LS7290 Datasheet STEPPER MOTOR CONTROLLER

Manufacturer: LSI

Overview: LS7290 STEPPER MOTOR CONTROLLER.

LS7290 stepper motor controller by LSI - Datasheet Preview

Datasheet Details

Part number	LS7290
Manufacturer	LSI
File Size	510.83 KB
Description	STEPPER MOTOR CONTROLLER
Download	LS7290 Download (PDF)

General Description

: The LS7290 generates Phase Drive outputs a nd PWM output s for controlling twophase Bipolar Motors or four-phase Un ipolar Motors, respectively.

The LS7290 contains a mod e controlled loo k-up table for generating the motor duty cycle drive sequences.

There are four outputs which are used to drive two H-Bridges for the two motor windings in the Bipolar motor or the fo ur driver transistors for the t wo ce ntertapped windings in the Unipolar motor (Refe r t o Table 2).

Key Features

July 2011 Controls Bipolar and Unipolar motors Cost-effective replacement for L297 Full, ½ step mode selected with mode input Direction control Reset input Step control input Enable input PWM chopper circuit for current control Two peak-current comparators with external reference input Step control frequency and duty cycle controlled by an external frequency source.

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