AMIS30512C5122RG

更新时间： 2024-02-24 22:56:13

品牌	Logo	应用领域
安森美 - ONSEMI		驱动器运动控制电子器件信号电路光电二极管电动机控制电机
页数	文件大小	规格书
30页	420K
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AMIS30512C5122RG 数据手册

AMIS-30512

Micro-Stepping Motor Driver

Introduction

The AMIS−30512 is a micro−stepping stepper motor driver for

bipolar stepper motors. The chip is connected through I/O pins and a

SPI interface with an external microcontroller. It has an on−chip

voltage regulator, reset−output and watchdog reset, able to supply

peripheral devices. The AMIS−30512 contains a current−translation

table and takes the next micro−step depending on the clock signal on

the “NXT” input pin and the status of the “DIR” (=direction) register

or input pin. The chip provides a so−called “speed and load angle”

output. This allows the creation of stall detection algorithms and

control loops based on load−angle to adjust torque and speed. It is

using a proprietary PWM algorithm for reliable current control.

The AMIS−30512 is implemented in I2T100 technology, enabling

both high−voltage analog circuitry and digital functionality on the

same chip. The chip is fully compatible with the automotive voltage

requirements.

http://onsemi.com

PIN ASSIGNMENT

TSTO

POR/WD

VBB

MOTXP

GND

MOTXN

MOTYN

GND

MOTYP

VBB

VDD

GND

CLK

NXT

DIR

ERR

SLA

CPN

CPP

VCP

The AMIS−30512 is ideally suited for general−purpose stepper

motor applications in the automotive, industrial, medical, and marine

environment.

CLR

Key Features

(Top View)

• Dual H−Bridge for 2−phase Stepper Motors

• Programmable Peak−current up to 800 mA Using a 5−bit Current

DAC

• On−chip Current Translator

ORDERING INFORMATION

• SPI Interface

Device

AMIS30512

Package

Shipping

Tape & Reel

• Speed and Load Angle Output

SOIC 24

• Seven Step Modes from Full−step up to 32 Micro−steps

• Fully Integrated Current−sense

• PWM Current Control with Automatic Selection of Fast and Slow

Decay

• Low EMC PWM with Selectable Voltage Slopes

• Active Fly−back Diodes

• Full Output Protection and Diagnosis

• Thermal Warning and Shutdown

• Compatible with 3.3 V Microcontrollers, 5 V Tolerant Inputs

• Integrated 5 V Regulator to Supply External Microcontroller

• Integrated Reset Function to Reset External Microcontroller

• Integrated Watchdog Function

Publication Order Number:

September, 2008 − Rev. 1

AMIS−30512/D

12 3 4 5 6 7...30

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