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AMIS-30522: Stepper Motor Driver with Comprehensive Diagnostic Feedback and SLA Output

Datasheet: Micro-Stepping Motor Driver
Rev. 1 (336.0kB)
Product Overview
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The AMIS-30522 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-30522 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 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 uses a proprietary PWM algorithm for reliable current control. The AMIS-30522 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-30522 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   Benefits
     
  • Integrated 5V regulator
 
  • Supplies external microcontroller
  • Integrated reset function
 
  • Reset external microcontroller
  • 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 5V and 3.3V microcontrollers
   
  • Dual H-Bridge for 2-phase stepper motors
   
  • Programmable peak-current up to 1.6A using a 5-bit current DAC
   
  • Integrated watchdog function
   
  • Flap/valve control in climate control facilities
   
End Products
  • Intelligent positioning and dynamic motion of surveillance cameras and spotlights
  • Dose pumps
  • Vending machines
  • Pick-and-place machines
  • Automotive headlight position
  • Dynamic motion of weaving and sewing equipment
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
AM305222R1DBGEVB Consult Sales Office
Pb-free
Daughter Board SPI Stepper Driver NQFP Evaluation Board
AMIS305XXGEVK Consult Sales Office
Pb-free
Industrial Stepper Motor Driver Evaluation Kit 305XX Family
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
AMIS30522C5222RG Lifetime
Pb-free
Halide free
AMIS-30522 NQFP-32 560AA 3 260 Tape and Reel 2500 $2.5066
Market Leadtime (weeks) : Contact Factory
Case Outlines
560AA   
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