AMIS-30622_13 Datasheet, PDF (1/50 Pages) ON Semiconductor – I2C Micro-Stepping Motor Driver

AMIS-30622
I²C Micro-Stepping Motor
Driver
INTRODUCTION
The AMIS−30622 is a single−chip micro−stepping motor driver
with a position controller and control/diagnostic interface. It is ready
to build intelligent peripheral systems where up to 32 drivers can be
connected to one I²C master. This significantly reduces system
complexity.
The chip receives positioning instructions through the bus and
subsequently drives the stator coils so the two−phase stepper motor
moves 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.
Micro−stepping allows silent motor operation and increased
positioning resolution. The advanced motion qualification mode
enables verification of the complete mechanical system in function of
the selected motion parameters. The AMIS−30622 can easily be
connected to an I²C bus where the I²C master can fetch specific status
information like actual position, error flags, etc. from each individual
slave node.
The chip is implemented in I2T100 technology, enabling both high
voltage analog circuitry and digital functionality on the same chip.
PRODUCT FEATURES
Motor Driver
• Micro−Stepping Technology
• 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
• 14 V/24 V Compliant
http://onsemi.com
SOIC−20
3 or 7 SUFFIX
CASE 751AQ
NQFP−32
8 SUFFIX
CASE 560AA
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Controller with RAM and OTP Memory
• Position Controller
• Configurable Speeds and Acceleration
• Input to Connect Optional Motion Switch
I²C Interface
• Bi−Directional 2−Wire Bus for Inter IC Control
• Field Programmable Node Addresses
• Full Diagnostics and Status Information
Protection
• Overcurrent Protection
• Undervoltage Management
• Open−circuit Detection
• High Temperature Warning and Management
• Low Temperature Flag
EMI Compatibility
• High Voltage Outputs with Slope Control
• This is a Pb−Free Device
© Semiconductor Components Industries, LLC, 2013
1
July, 2013 − Rev. 5
Publication Order Number:
AMIS−30622/D