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AMIS-30542

ON Semiconductor
Part Number AMIS-30542
Manufacturer ON Semiconductor
Description Micro-Stepping Motor Driver
Published Feb 8, 2010
Detailed Description AMIS-30542 AMIS-30542 Micro-Stepping Motor Driver Introduction The AMIS−30542 is a micro−stepping stepper motor driver ...
Datasheet PDF File AMIS-30542 PDF File

AMIS-30542
AMIS-30542


Overview
AMIS-30542 AMIS-30542 Micro-Stepping Motor Driver Introduction The AMIS−30542 is a micro−stepping stepper motor driver for bipolar stepper motors.
The chip 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.
AMIS−30542 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 chip provides a so−called “speed and load angle” 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−30542 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−30542 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 http://onsemi.
com NQFP−32, 7x7 CASE 560AA MARKING DIAGRAM • Dual H−Bridge for 2−Phase Stepper Motors • Programmable Peak−Current Up to 2.
2 A Continuous† (5 A Short • On−Chip Current Translator • SPI Interface www.
DataSheet4U.
com • 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 I...


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