AMIS-30422: Stepper Motor Driver/Controller for External FETs

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 HBridge PreDrivers for 2Phase Stepper Motors
  • Programmable Current via SPI
  • Onchip Current Translator
  • SPI Interface
  • Speed and Load Angle Output
  • 9 Step Modes from Full Step up to 128 MicroSteps
  • CurrentSense via Two External Sense Resistors
  • PWM Current Control with Automatic Selection of Fast and SlowDecay
  • 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
  • Motor Control
End Products
  • HVAC
  • Industrial Control Systems
Software (2)
Document TitleDocument ID/SizeRevisionRevision Date
AMIS-3062x Evaluation Kit GUI Installation WizardAMIS3062XEVKGUISW (43998.0kB)0
Stepper Motor Driver GUI Installation WizardSTEPPERGUISW (68854kB)8
Package Drawings (1)
Document TitleDocument ID/SizeRevision
QFN48 7x7, 0.5P485AJ (36.4kB)O
Application Notes (2)
Document TitleDocument ID/SizeRevisionRevision Date
How to Measure Bemf on the SLA-pinAND8399/D (2115kB)3Jul, 2016
Stepper Motor Resonance Measurement Setup with the NCV7052x Evaluation KitAND8371/D (2937.0kB)1
Evaluation Board Documents (7)
Document TitleDocument ID/SizeRevisionRevision Date
AMIS30422DBGEVB Bill of Materials ROHS CompliantAMIS30422DBGEVB_BOM_ROHS (154kB)0
AMIS30422DBGEVB Gerber Layout Files (Zip Format)AMIS30422DBGEVB_GERBER (233kB)0
AMIS30422DBGEVB SchematicAMIS30422DBGEVB_SCHEMATIC (202kB)0
AMIS305XXGEVK Bill of Materials ROHS CompliantAMIS305XXGEVK_BOM_ROHS.PDF (189kB)1
AMIS305XXGEVK Gerber Layout Files (Zip Format)AMIS305XXGEVK_GERBER.ZIP (614kB)1
AMIS305XXGEVK SchematicAMIS-305XXGEVK_SCHEMATIC.PDF (261kB)1
AMIS305XXGEVK Test ProcedureAMIS305XXGEVK_TEST_PROCEDURE.PDF (2056.0kB)0
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Micro-Stepping Stepper Motor Bridge ControllerAMIS-30422/D (480.0kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
AMIS30422DBGEVBActiveDaughter Board Stepper Motor Driver/Controller for External FETs Evaluation Board
AMIS305XXGEVKActivePb-freeIndustrial Stepper Motor Driver Evaluation Kit 305XX Family
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
AMIS30422C422MNTWGActivePb-free Halide freeQFN-48485AJ3Tape and Reel2500$3.0799
Specifications
ProductVM Min (V)VM Max (V)VCC Min (V)VCC Max (V)IO Max (A)IO Peak Max (A)Step ResolutionControl TypeFeedback MethodCurrent SenseRegulator OutputFault DetectionFlyback ProtectionRDS(on) Typ (Ω)
AMIS30422C422MNTWG64015201/128Back EMF/SensorlessExternal ResistorYesThermalIntegrated Active
Micro-Stepping Stepper Motor Bridge Controller (480.0kB) AMIS-30422
AMIS-3062x Evaluation Kit GUI Installation Wizard AMIS-30624
STEPPERGUISW - 68854 KB AMIS305XXGEVK
How to Measure Bemf on the SLA-pin AMIS-30543
Stepper Motor Resonance Measurement Setup with the NCV7052x Evaluation Kit AMIS-30543
AMIS30422DBGEVB BOM ROHS - 154 KB AMIS30422DBGEVB
AMIS30422DBGEVB GERBER - 233 KB AMIS30422DBGEVB
AMIS30422DBGEVB SCHEMATIC - 202 KB AMIS30422DBGEVB
AMIS305XXGEVK BOM ROHS AMIS305XXGEVK
AMIS305XXGEVK GERBER AMIS305XXGEVK
AMIS-305XXGEVK SCHEMATIC AMIS305XXGEVK
AMIS305XXGEVK TEST PROCEDURE AMIS305XXGEVK
QFN48 7x7, 0.5P NB3M8T3910G