AMIS-30523
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CAN Micro-Stepping Motor
Driver
Introduction
The AMIS−30523 is a micro−stepping stepper motor driver for
bipolar stepper motors with an embedded CAN transceiver.
The motor driver 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. It
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.
http://onsemi.com
The CAN transceiver is the interface between a (CAN) protocol
controller and the physical bus. It provides differential transmit
capability to the bus and differential receive capability to the CAN
controller. To cope with the long bus delay the communication speed
needs to be low. The integrated transceiver allows low transmit data
rates down 10 kbit/s or lower.
1
52
QFN52, 8x8
CASE 485M
The AMIS−30523 is ideally suited for general−purpose stepper
motor applications in the automotive, industrial, medical, and marine
environment. With the on−chip voltage regulator and embedded CAN
transceiver it further reduces the BOM for mechatronic stepper
applications.
MARKING DIAGRAM
1
AMIS30523
0C523−001
XXXXYZZ
Key Features
Motor Driver
• Dual H−Bridge for 2−Phase Stepper Motors
0C523−001 = Specific Device Code
• Programmable Peak−Current up to 1.2 A Continuous (1.6 A for a
XXXX
WL
Y
= Date Code
= Wafer Lot
= Assembly Location
= Traceability Code
Short Time)*
• On−Chip Current Translator
ZZ
• SPI Interface
• Seven Step Modes from Full Step up to 32 Micro−Steps
• PWM Current Control with Automatic Selection of Fast and Slow
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 34 of this data sheet.
Decay and Fully Integrated Current−Sense
• Full Output Protection and Diagnosis
• Thermal Warning and Shutdown
• Integrated 5 V Regulator to Supply External
• Low EME: Common−Mode Choke is No Longer
Microcontroller
Required
• Differential Receiver with Wide common−mode range
($35 V)
CAN Transceiver
• Compatible with the ISO 11898 Standard
• Voltage Source via V
Pin for Stabilizing the
SPLIT
• Wide Range of Bus Communication Speed (0 up to 1
Recessive Bus Level
• No Disturbance of the Bus Lines with an Un−Powered
Node
• Logic Level Inputs Compatible with 3.3 V Devices
• These are Pb−Free Devices
Mbit/s)
• Allows Low Transmit Data Rate in Networks
Exceeding 1 km
• Extremely Low Current Standby Mode with Wake−up
via the Bus
*Output Current Level May be Limited by Ambient Temperature and Heat Sinking
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2010
1
Publication Order Number:
November, 2010 − Rev. P0
AMIS−30523/D
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