NCV70516 - ON Semiconductor

NCV70516 Micro-stepping Motor Driver

The NCV70516 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 NCV70516 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 .

Features

• Dual H−bridge for 2−phase Stepper Motors
• Programmable Peak−current up to 800 mA
• Low Temperature Boost Current up to 1100 mA
• On−chip Current Translator
• SPI Interface
• 5 Step Modes from Full−step up to 16 Micro−steps
• Fully Integrated Current−sensing and Current−regulation
• 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 Pro.