LS7290 Datasheet PDF (STEPPER MOTOR CONTROLLER)

LS7290 - STEPPER MOTOR CONTROLLER

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.

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.

Datasheet Details

Part number	LS7290
Manufacturer	LSI
File Size	510.83 KB
Description	STEPPER MOTOR CONTROLLER
Datasheet	LS7290 Datasheet
Additional preview pages of the LS7290 datasheet.

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Full PDF Text Transcription

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LS7290 STEPPER MOTOR CONTROLLER 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 or by an internal crystal controlled oscillator (typically 8 MHz) All inputs and outputs TTL/CMOS compatible (TTL for 5V operation) 3V to 5.5V Operation (VDD – VSS) LS7290 (DIP), LS7290-S (SOIC), LS7290-TS (TSSOP) – See Figure 1.

Published: May 17, 2014 |