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AMIS-30532 Datasheet, PDF (1/29 Pages) ON Semiconductor – Micro-Stepping Motor Driver | |||
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AMIS- 30532
Micro--Stepping Motor
Driver
Introduction
The AMIS--30532 is a micro--stepping stepper motor driver for
bipolar stepper motors. The chip is connected through I/O pins and an
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--30532 contains a current--translation
table and takes the next micro--step depending on the clock signal on
the âNXTâ input pin and the status of the âDIRâ (=direction) register
or input pin. The chip provides a so--called âspeed and load angleâ
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--30532 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.
The AMIS--30532 is ideally suited for general--purpose stepper
motor applications in the automotive, industrial, medical, and marine
environment. With the on--chip voltage regulator it further reduces the
BOM for mechatronic stepper applications.
Key Features
⢠Dual H--Bridge for 2--Phase Stepper Motors
⢠Programmable Peak--Current up to 1.6 A Continuousâ (3.0 A Short
Time) using a 5--bit Current DAC
⢠On--Chip Current Translator
⢠SPI Interface
⢠Speed and Load Angle Output
⢠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 5 V and 3.3 V Microcontrollers
⢠Integrated 5 V Regulator to Supply External Microcontroller
⢠Integrated Reset Function to Reset External Microcontroller
⢠Integrated Watchdog Function
⢠These Devices are Pb--Free and are RoHS Compliant*
http://onsemi.com
NQFP--32, 7x7
CASE 560AA
MARKING DIAGRAM
C532--001 = Specific Device Code
XXXX = Date Code
Y
= Assembly Location
ZZ
= Traceability Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 27 of this data sheet.
â Output current level may be limited by ambient temperature and heat sinking.
*For additional information on our Pb--Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2009
1
October, 2009 -- Rev. 0
Publication Order Number:
AMIS--30532/D
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