The L6470 device, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping. It integrates a dual low R DS(on)DMOS full bridge with all of the power switches equipped with an accurate on-chip current sensing circuitry suitable for non-dissipative current control and overcurrent protection. Thanks to a unique control system, a true 1/128 steps resolution is achieved. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position, easily programmed through a dedicated registers set. All commands and data registers, including those used to set analogue values (i.e. Current control value, current protection trip point, deadtime, PWM frequency, etc.) are sent through a standard 5-Mbit/s SPI.
A very rich set of protections (thermal, low bus voltage, overcurrent, motor stall) allows the design of a fully protected application, as required by the most demanding motor control applications.Key Features. X-NUCLEO expansion boards and X-CUBE softwareLow voltage stepper motor driver expansion board based on the STSPIN220 for STM32 NucleoLow voltage stepper motor driver software expansion for STM32CubeLow voltage three-phase brushless DC motor driver expansion board based on STSPIN230 for STM32 NucleoLow voltage three-phase brushless DC motor driver software expansion for STM32CubeLow voltage dual brush DC motor driver expansion board based on STSPIN240 for STM32 NucleoLow voltage dual brush DC motor driver software expansion for STM32Cube. I want to stay informed about ST's latest newsI consent that ST (as data controller according to the Privacy Policy) will keep a record of my navigation history and use that information as well as the personal data that I have communicated to ST for marketing purposes relevant to my interests. My personal data will be provided to ST affiliates and distributors of ST in countries located in the European Union and outside of the European Union for the same marketing purposes- I understand that I can withdraw my consent at any time through opt-out links embedded in communication I receive or by managing my account settings. I can also exercise other user’s rights at any time as described in the Privacy Policy.ST will retain your browsing history and use details of the products and services that you have previously accessed, purchased or downloaded to make suggestions to you for other products and services which ST believe you will also be interested in.
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