onsemi NCV70517
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.| Part No. | NCV70517 |
|---|---|
| Datasheet | NCV70517 Download |
| Manufacturer |  onsemi |
| Description | Micro-stepping Motor Driver |
| Buy | Stock & Price |
DESCRIPTION
The chip provides an error message if an electrical error, an under−voltage or an elevated junction temperature is detected. It is using a proprietary PWM algorithm for reliable current control. NCV70517 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 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 Decay
● Fixed PWM Frequency
● Active Fly−back Diodes
● Full Output Pro...
