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Motor Drivers, Stepper | NCV70514

Micro-stepping Motor Driver

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The NCV70514 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 NCV70514 contains a current鈭抰ranslation table and takes the next micro鈭抯tep depending on the 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 stall, 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.NCV70514 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 marine environment.Due to the technology, the device is especially suited for use in 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
  • On鈭抍hip Current Translator
  • SPI Interface with Daisy Chain Capability
  • 7 Step Modes from Full鈭抯tep up to 32 Micro鈭抯teps
  • Fully Integrated Current鈭抯ensing and Current鈭抮egulation
  • On Chip Stall Detection
  • PWM Current Control with Automatic Selection of Fast and Slow Decay
  • 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 V Tolerant Open Drain Outputs
  • Reset Function
  • Overcurrent Protection
  • Enhanced Under Voltage Management
  • Step Mode Selection Inputs
  • These Devices are Pb鈭扚ree, Halogen Free/BFR Free and are RoHS Compliant

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VM Min (V)

VM Max (V)

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Reference Price

NCV70514MW003BR2G

Loading...

Active

CAD Model

Pb

A

H

P

QFNW-32

484AB

3

260

REEL

5000

N

6

29

6

29

0.8

1.1

-

SPI

Fully Integrated

Open Coil

$1.9576

More Details

NCV70514MW007AR2G

Loading...

Active

CAD Model

Pb

A

H

P

QFNW-32

484AB

1

260

REEL

5000

Y

6

29

29

29

0.8

1.1

-

SPI

Fully Integrated

Open Coil

$1.7318

More Details

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