NCV70514: Micro-stepping Motor Driver

The NCV70514 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. The NCV70514 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 an error message if stall, an electrical error, an under−voltage or an elevated junction temperature is detected. It is using a proprietary PWM algorithm for reliable current control. NCV70514 is fully compatible with the automotive voltage requirements and is ideally suited for general−purpose stepper motor applications in the automotive, industrial, medical, and marine environment. Due to the technology, the device is especially suited for use in applications with fluctuating battery supplies.

Features
  • Dual H−bridge for 2−phase Stepper Motors
  • Programmable Peak−current up to 800 mA
  • On−chip Current Translator
  • SPI Interface with Daisy Chain Capability
  • 7 Step Modes from Full−step up to 32 Micro−steps
  • Fully Integrated Current−sensing and Current−regulation
  • On Chip Stall Detection
  • PWM Current Control with Automatic Selection of Fast and Slow Decay
  • Fixed PWM Frequency
  • Active Fly−back Diodes
  • Full Output Protection and Diagnosis
  • Thermal Warning and Shutdown
  • Compatible with 3.3 V Microcontrollers, 5 V Tolerant Inputs, 5 V Tolerant Open Drain Outputs
  • Reset Function
  • Overcurrent Protection
  • Enhanced Under Voltage Management
  • Step Mode Selection Inputs
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
Applications
  • Small Positioning Applications
  • Automotive (headlamp alignment, HVAC, idle control, cruise control)
  • Industrial Equipment (lighting, fluid control, labeling, process control, XYZ tables, robots)
  • Building Automation (HVAC, surveillance, satellite dish, renewable energy systems)
Software (1)
Document TitleDocument ID/SizeRevisionRevision Date
NV705143R1DBGEVB SoftwareNV705143R1DBGEVB_SOFTWARE (656kB)2.0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
QFN32, 5x5, 0.5P, 3.1x3.1EP488AM (57.4kB)A
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Micro-stepping Motor DriverNCV70514/D (313kB)3Oct, 2016
Evaluation Board Documents (8)
Document TitleDocument ID/SizeRevisionRevision Date
NCV7052XGEVK Bill of Materials ROHS CompliantNCV7052XGEVK_BOM_ROHS.PDF (143.0kB)0
NCV7052XGEVK Gerber Layout Files (Zip Format)NCV7052XGEVK_GERBER.ZIP (197.0kB)0
NCV7052XGEVK SchematicNCV7052XGEVK_SCHEMATIC.PDF (135.0kB)0
NCV7052XGEVK Test ProcedureNCV7052XGEVK_TEST_PROCEDURE.PDF (904.0kB)0
NV705143R1DBGEVB Bill of Materials (ROHS Compliant)NV705143R1DBGEVB_BOM_ROHS (33kB)0
NV705143R1DBGEVB Gerber Layout Files (Zip Format)NV705143R1DBGEVB_GERBER (214kB)1
NV705143R1DBGEVB SchematicNV705143R1DBGEVB_SCHEMATIC (87kB)0
NV705143R1DBGEVB Test ProcedureNV705143R1DBGEVB_TEST_PROCEDURE (227kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
NCV7052XGEVKActivePb-freeEvaluation Kit for NV705 Family
NV705143R1DBGEVBActivePb-freeDB SPI STEPPER DRV STALL
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCV70514MW003GActiveAEC Qualified PPAP Capable Pb-free Halide freeQFN-32488AM3Tape and Reel1Contact BDTIC
NCV70514MW003R2GActiveAEC Qualified PPAP Capable Pb-free Halide freeQFN-32488AM3Tape and Reel5000Contact BDTIC
NCV70514MW007R2GActiveAEC Qualified PPAP Capable Pb-free Halide freeQFN-32488AM1Tape and Reel5000Contact BDTIC
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)
NCV70514MW003G0.81/32ParallelBack EMF/SensorlessFully IntegratedOpen CoilIntegrated Active
NCV70514MW003R2G0.81/32SPIBack EMF/SensorlessFully IntegratedOpen CoilIntegrated Active
NCV70514MW007R2G
Micro-stepping Motor Driver (313kB) NCV70514
NV705143R1DBGEVB SOFTWARE - 656 KB NV705143R1DBGEVB
NCV7052XGEVK BOM ROHS NCV7052XGEVK
NCV7052XGEVK GERBER NCV7052XGEVK
NCV7052XGEVK SCHEMATIC NCV7052XGEVK
NCV7052XGEVK TEST PROCEDURE NCV7052XGEVK
NV705143R1DBGEVB BOM ROHS - 33 KB NV705143R1DBGEVB
NV705143R1DBGEVB GERBER - 214 KB NV705143R1DBGEVB
NV705143R1DBGEVB SCHEMATIC - 87 KB NV705143R1DBGEVB
NV705143R1DBGEVB TEST PROCEDURE - 227 KB NV705143R1DBGEVB
QFN32, 5x5, 0.5P, 3.1x3.1EP NCN6804