AMIS30623C623BG datasheet(1/61 Pages) ONSEMI

Part #	AMIS30623C623BG

Description	Micro-stepping Motor Driver

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Manufacturer	ONSEMI [ON Semiconductor]

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May, 2009 − Rev. 7

1

Publication Order Number:

AMIS−30623/D

AMIS-30623

Micro-stepping Motor Driver

INTRODUCTION

The AMIS−30623 is a single−chip micro−stepping motordriver with

position controller and control/diagnostic interface. It is ready to build

dedicated mechatronics solutions connected remotely with a LIN master.

The chip receives positioning instructions through the bus and

subsequently drives the motor coils to the desired position. The

on−chip position controller is configurable (OTP or RAM) for

different motor types, positioning ranges and parameters for speed,

acceleration and deceleration. The AMIS−30623 acts as a slave on the

LIN bus and the master can fetch specific status information like

actual position, error flags, etc. from each individual slave node.

An integrated sensor−less step−loss detection prevents the

positioner from loosing steps and stops the motor when running into

stall. This enables silent, yet accurate position calibrations during a

referencing run and allows semi−closed loop operation when

approaching the mechanical end−stops.

The chip is implemented in I2T100 technology, enabling both high

voltage analog circuitry and digital functionality on the same chip.

The AMIS−30623 is fully compatible with the automotive voltage

requirements.

PRODUCT FEATURES

Motordriver

• Micro−stepping Technology

• Sensorless Step−loss Detection

• Peak Current up to 800 mA

• Fixed Frequency PWM Current−control

• Automatic Selection of Fast and Slow Decay Mode

• No external Fly−back Diodes Required

• Compliant with 14 V Automotive Systems and

Industrial Systems up to 24 V

• Motion Qualification Mode (Note 1)

Controller with RAM and OTP Memory

• Position Controller

• Configurable Speeds and Acceleration

• Input to Connect Optional Motion Switch

LIN Interface

• Physical Layer Compliant to LIN rev. 2.0. Data−link

Layer Compatible with LIN rev. 1.3 (Note 2)

• Field−programmable Node Addresses

• Dynamically Allocated Identifiers

• Diagnostics and Status Information

Protection

• Overcurrent Protection

• Undervoltage Management

• Open−circuit Detection

• High Temperature Warning and Management

• Low Temperature Flag

• LIN Bus Short−circuit Protection to Supply and Ground

• Lost LIN Safe Operation

Power Saving

• Powerdown Supply Current < 100 mA

• 5 V Regulator with Wake−up On LIN Activity

EMI Compatibility

• LIN Bus Integrated Slope Control

• HV Outputs with Slope Control

Patents

• US 7,271,993

• US 7,288,956

• This is a Pb−Free Device

1. Not applicable for “Product Versions AMIS30623C6238(R)G, AMIS30623C623B(R)G”

2. Minor exceptions to the conformance of the data−link layer to LIN rev. 1.3.

http://onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

ORDERING INFORMATION

SOIC−20

8 or 9 SUFFIX

CASE 751AQ

NQFP−32

A or B SUFFIX

CASE 560AA

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