NCV70517 Overview
The NCV70517 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 NCV70517 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.
NCV70517 Key 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
- Back-EMF Measurement
- On Chip Stall Detection
- PWM Current Control with Automatic Selection of Fast and Slow
NCV70517 Applications
- Dual H−bridge for 2−phase Stepper Motors
- Programmable Peak−current up to 800 mA
- Low Temperature Boost Current up to 1100 mA