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NCV70514MW003G Datasheet(PDF) 1 Page - ON Semiconductor |
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NCV70514MW003G Datasheet(HTML) 1 Page - ON Semiconductor |
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1 / 31 page  © Semiconductor Components Industries, LLC, 2016 October, 2016 − Rev. 3 1 Publication Order Number: NCV70514/D NCV70514 Micro-stepping Motor Driver Description 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 • Low Temperature Boost Current (available only for NCV70514MW007 device) • 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 Typical 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) See detailed ordering and shipping information in the package dimensions section on page 30 of this data sheet. ORDERING INFORMATION MARKING DIAGRAM N70514 = Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package 32 1 QFN32, 5x5 CASE 488AM N70514−x AWLYYWW G 1 www.onsemi.com |
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