AMIS-30532: Stepper Motor Driver w/ comprehensive diagnostic feedback and SLA output

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 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-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.

特性

Dual H-Bridge for 2-Phase Stepper Motors
Programmable Peak-Current up to 1.6 A Continuous (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

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类型

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AMIS30532C5321G

Active

Pb-free

Halide free

Stepper Motor Driver w/ comprehensive diagnostic feedback and SLA output

NQFP-32

560AL

Tube

$3.6

AMIS30532C5321RG