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SI-7321M - Motor Driver

Description

SI-7321M-AN Rev.

SANKEN ELECTRIC CO., LTD.

Features

  • include the following:.
  • Power supply voltage, VBB , 46 V maximum, 10 to 44 V normal operating range.
  • Logic supply voltage, VDD , 3.3 to 5.5 V.
  • Maximum output current: 1.5 A.
  • Four NMOS output MOSFETs, RDS(on) = 0.25 Ω typical.
  • Built-in sequencer.
  • Simplified clock-in stepping control.
  • Full- and half-stepping and 1/4 , 1/8 , and 1/16 microstepping.
  • Surface mount type 44-pin molded package for automatic assembly and low profile.
  • Self-excitation PWM curren.

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Datasheet preview – SI-7321M

Datasheet Details

Part number SI-7321M
Manufacturer Sanken
File Size 719.81 KB
Description Motor Driver
Datasheet download datasheet SI-7321M Datasheet
Additional preview pages of the SI-7321M datasheet.

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Full PDF Text Transcription

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Product Information SI-7321M Motor Driver IC Introduction This document describes the function and features of SI-7321M, a unipolar 2-phase stepping motor driver IC. This device uses PWM constant current-control, and provides user-configurable sequencer parameters. The clock-in type input interface allows simplified control logic, and options for built-in sense current detection and load circuit short or open protection (patent pending) provide lower loss. Lower thermal resistance results from the innovative multi-chip internal structure, which separates the main control IC (MIC) from the four heat-generating MOSFETs, and places wide output terminals at package corners to enhance thermal dissipation.
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