AMIS-30523 Datasheet, PDF (1/35 Pages) ON Semiconductor – CAN Micro-Stepping Motor Driver

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
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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.
The CAN transceiver is the interface between a (CAN) protocol
1 52
controller and the physical bus. It provides differential transmit
capability to the bus and differential receive capability to the CAN
QFN52, 8x8
controller. To cope with the long bus delay the communication speed
CASE 485M
needs to be low. The integrated transceiver allows low transmit data
rates down 10 kbit/s or lower.
The AMIS−30523 is ideally suited for general−purpose stepper
motor applications in the automotive, industrial, medical, and marine
MARKING DIAGRAM
environment. With the on−chip voltage regulator and embedded CAN
1
transceiver it further reduces the BOM for mechatronic stepper
applications.
Key Features
Motor Driver
AMIS30523
0C523−001
XXXXYZZ
• Dual H−Bridge for 2−Phase Stepper Motors
• Programmable Peak−Current up to 1.2 A Continuous (1.6 A for a
0C523−001 = Specific Device Code
Short Time)*
• On−Chip Current Translator
• SPI Interface
XXXX
WL
Y
ZZ
= Date Code
= Wafer Lot
= Assembly Location
= Traceability Code
• Seven Step Modes from Full Step up to 32 Micro−Steps
• PWM Current Control with Automatic Selection of Fast and Slow
Decay and Fully Integrated Current−Sense
ORDERING INFORMATION
• Full Output Protection and Diagnosis
• Thermal Warning and Shutdown
See detailed ordering and shipping information in the package
dimensions section on page 34 of this data sheet.
• Integrated 5 V Regulator to Supply External
• Low EME: Common−Mode Choke is No Longer
Microcontroller
Required
CAN Transceiver
• Compatible with the ISO 11898 Standard
• Wide Range of Bus Communication Speed (0 up to 1
Mbit/s)
• Allows Low Transmit Data Rate in Networks
Exceeding 1 km
• Extremely Low Current Standby Mode with Wake−up
via the Bus
• Differential Receiver with Wide common−mode range
($35 V)
• Voltage Source via V_SPLIT Pin for Stabilizing the
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
*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
November, 2010 − Rev. P0
Publication Order Number:
AMIS−30523/D