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AMIS-30422: Stepper motor driver/controller for external FETs

Datasheet: Micro-Stepping Stepper Motor Bridge Controller
Rev. 0 (480.0kB)
Product Overview
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The AMIS-30422 is a micro-stepping stepper motor bridge controller for large current range bipolar applications. The chip interfaces via a SPI interface with an external controller in order to control two external power NMOS H-bridges. It has an on-chip voltage regulator, current sensing, self adapting PWM controller and pre-driver with smart slope control switching allowing the part to be EMC compliant with industrial and automotive applications. It uses a proprietary PWM algorithm for reliable current control.
Features
 
  • Dual H-bridge pre-drivers for two phase stepper motors
  • Programmable current via SPI
  • On-chip current translator
  • SPI interface
  • Speed and load angle output
  • 9 step modes from full step up to 128 microsteps
  • Current sense via two external sense resistors
  • PWM current control with automatic selection of fast and slow decay
  • Low EMC PWM with selectable voltage slopes
  • Full output protection and diagnosis
  • Thermal warning and shutdown
  • Compatible with 3.3 V microcontrollers
  • Integrated 3.3 V regulator to supply external microcontroller
  • Integrated reset function to reset external microcontroller
  • Integrated watchdog function
Applications   End Products
  • Motor control
 
  • HVAC
  • Industrial control systems
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
AMIS30422DBGEVB Consult Sales Office
Daughter Board Stepper Motor Driver/Controller for External FETs 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.
AMIS30422C422MNTWG Lifetime
Pb-free
Halide free
AMIS-30422 QFN-48 485AJ 3 260 Tape and Reel 2500 $3.0799
Market Leadtime (weeks) : Contact Factory
Case Outlines
485AJ   
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