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Motor Drivers, Stepper | NCV70516

Micro-stepping Motor Driver

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Overview

The NCV70516 is a micro鈭抯tepping stepper motor driver for bipolar stepper motors. The chip is connected through I/O pins and an SPI interface with an external microcontroller. The NCV70516 contains a current鈭抰ranslation table and takes the next micro鈭抯tep depending onthe clock signal on the 鈥淣XT鈥� input pin and the status of the 鈥淒IR鈥� (= direction) register or input pin. The chip provides an error message if an electrical error, an under鈭抳oltage or an elevated junctiontemperature is detected. It is using a proprietary PWM algorithm for reliable current control.NCV70516 is fully compatible with the automotive voltage requirements and is ideally suited for general鈭抪urpose stepper motor applications in the automotive, industrial, medical, and marineenvironment.Due to the technology, the device is especially suited for usein applications with fluctuating battery supplies.

  • 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)

  • Dual H鈭抌ridge for 2鈭抪hase Stepper Motors
  • Programmable Peak鈭抍urrent up to 800 mA
  • Low Temperature Boost Current up to 1100 mA
  • On鈭抍hip Current Translator
  • SPI Interface
  • 5 Step Modes from Full鈭抯tep up to 16 Micro鈭抯teps
  • Fully Integrated Current鈭抯ensing and Current鈭抮egulation
  • PWM Current Control with Automatic Selection of Fast and SlowDecay
  • Fixed PWM Frequency
  • Active Fly鈭抌ack Diodes
  • Full Output Protection and Diagnosis
  • Thermal Warning and Shutdown
  • Compatible with 3.3 V Microcontrollers, 5 V Tolerant Inputs, 5 VTolerant Open Drain Outputs
  • Reset Function
  • Overcurrent Protection
  • These Devices are Pb鈭扚ree, Halogen Free/BFR Free and are RoHSCompliant

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Reference Price

NCV70516MW1AR2G

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Active

CAD Model

Pb

A

H

P

QFNW-24

484AF

1

260

REEL

5000

Y

6

29

6

29

0.8

1.1

1/16

SPI

Fully Integrated

Open Coil

$1.5877

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Reliability Data

Die Related Summary Data

Device: NCV70516MW1AR2G

Equivalent to wafer fab process: I3T

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

I3T

4

4350769675

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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