NCV70514中文资料微步电机驱动器数据手册ONSEMI规格书

描述 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.

特性 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

应用 Application

• 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)

简介

NCV70514属于集成电路（IC）的电机驱动器控制器。由制造生产的NCV70514电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。