NCV70501: Microstepping Motor Driver for Bipolar Stepper Motors

NCV70501 is a microstepping stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and an SPI interface with an external microcontroller.The NCV70501 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 or an elevated junction temperature is detected. It is using a proprietary PWM algorithm for reliable current control.NCV70501 is fully compatible with the automotive voltage requirements and is ideally suited for general-purpose low current range stepper motor applications in the automotive, industrial, medical, and marine environment.

Features

Programmable Peak-Current Up to 300 mA
On-Chip Current Translator
SPI Interface With Daisy Chain Capability
Fully Integrated CurrentSensing and CurrentRegulation. PWM Current Control with Automatic Selection of Fast and Slow Decay
Fully Integrated CurrentSensing and CurrentRegulation. Active FlyBack Diodes
On chip sensor-less stall detection
Dual H-Bridge for 2-Phase Stepper Motors
6 Modes from FullStep up to 1/16 micro-stepping mode
Full Protection and Diagnosis. Thermal (Warning and) Shutdown
Compatible with 3.3 V Microcontrollers, 5 V Tolerant Inputs, 5 V Tolerant Open Drain Outputs
AEC-Q100 Qualified and PPAP Capable. Pb-Free and are RoHS Compliant

Benefits

Tailored for medium/low current applications like automotive HVAC flap
Off-loads microcontroller
Improves PCB connectivity in case of multi-axis control
Off-loads microcontroller
Simplifies PCB Bill of Material
Off-loads microcontroller

Applications

Automotive
Production automation
Building automation

End Products

HVAC, air-duct valves, radiator water-flow valves
Robots, inspection tools, assembly, testing tools, dispensers, valves, pumps, feeders, printers
Vending machines, sorting machines, warehouse automation
Micro-dosing pumps

Software (1)

Document Title	Document ID/Size	Revision	Revision Date
NV70501R10DBGEVB Stepper Driver SWAS GUI (Zip Format)	NV70501R10DBGEVB_STEPPER_DRIVER_SWAS_GUI.zip (536kB)	0

Package Drawings (1)

Document Title	Document ID/Size	Revision
SOIC-16	751BA (38.1kB)	A

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Microstepping Motor Driver	NCV70501/D (284.0kB)	2

Evaluation Board Documents (8)

Document Title	Document ID/Size	Revision	Revision Date
NCV7052XGEVK Bill of Materials ROHS Compliant	NCV7052XGEVK_BOM_ROHS.PDF (143.0kB)	0
NCV7052XGEVK Gerber Layout Files (Zip Format)	NCV7052XGEVK_GERBER.ZIP (197.0kB)	0
NCV7052XGEVK Schematic	NCV7052XGEVK_SCHEMATIC.PDF (135.0kB)	0
NCV7052XGEVK Test Procedure	NCV7052XGEVK_TEST_PROCEDURE.PDF (904.0kB)	0
NV70501R10DBGEVB Bill of Materials ROHS Compliant	NV70501R10DBGEVB_BOM_ROHS.pdf (139kB)	0
NV70501R10DBGEVB Gerber Layout Files (Zip Format)	NV70501R10DBGEVB_GERBER.zip (89kB)	0
NV70501R10DBGEVB Schematic	NV70501R10DBGEVB_SCHEMATIC.pdf (85kB)	0
NV70501R10DBGEVB Test Procedure	NV70501R10DBGEVB_TEST_PROCEDURE.pdf (86kB)	0

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
NCV7052XGEVK	Active	Pb-free	Evaluation Kit for NV705 Family
NV70501R10DBGEVB	Active	Pb-free	DB SPI STEPPER DRV STALL Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NCV70501DW002G	Active	AEC Qualified PPAP Capable Pb-free Halide free	SOIC-16	751BA	2	Tube	48	Contact BDTIC
NCV70501DW002R2G	Active	AEC Qualified PPAP Capable Pb-free Halide free	SOIC-16	751BA	2	Tape and Reel	3000	Contact BDTIC

Specifications

Product	VM Min (V)	VM Max (V)	VCC Min (V)	VCC Max (V)	IO Max (A)	IO Peak Max (A)	Step Resolution	Control Type	Feedback Method	Current Sense	Regulator Output	Fault Detection	Flyback Protection	RDS(on) Typ (Ω)
NCV70501DW002G						0.3		Parallel	Back EMF/Sensorless	Fully Integrated		UVLO	Integrated Active
NCV70501DW002R2G						0.3		Parallel	Back EMF/Sensorless	Fully Integrated		UVLO	Integrated Active