AMIS-30532: Microstepping motor driver

Description: The AMIS-30532 is a micro-stepping stepper motor d...
  • 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.
  • Features
  • 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
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Microstepping motor driver
  • Package Type: NQFP-32
  • Package Case Outline: 560AA
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Mouser:<1K
  • ON Semiconductor:2,500
  • Specifications
  • VM Min (V):
  • VM Max (V): 40 
  • VCC Min (V): 4.5 
  • VCC Max (V): 5.5 
  • IO Max (A): 3.2 
  • IO Peak Max (A): 3.2 
  • Step Resolution: 1/32 
  • Control Type: SPI 
  • Current Sense: Fully Integrated 
  • Fault Detection: Over-Current 
  • Package Type: NQFP-32 
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