STMicroelectronics has introduced a family of monolithic motor drivers that form the heart of an open, scalable solution for a wide range of motion control applications. ST's new powerSPIN platform includes devices suitable for driving DC motors, stepper motors and brushless DC motors. The powerSPIN devices are built with ST's BCDIII process which combines bipolar, CMOS and isolated DMOS structures on the same chip. This allows all of the control and power circuitry required to drive the motor to be integrated in a single chip.
The range of smart motor drivers includes the L6205 and L6225, L6206 and L6226, L6207 and L6227, L6208 and L6228 dual DC or bipolar stepper motors and the L6235 and L6229 for brushless DC motors.
For example, the L6208 integrates all the circuitry required to drive a two-phase stepper motor, including a dual DMOS full bridge, the constant off-time PWM current controller that performs the chopping regulation, and the phase sequence generator that generates the stepping sequence. Similarly, for driving three-phase brushless DC motors, the L6235 integrates a three-phase DMOS bridge, a constant off-time PWM current controller and the decoding logic for single-ended Hall sensors that generates the required sequence for the power stage. Both devices feature non-dissipative over-current protection on the high side Power MOSFETs and thermal shutdown.
Two classes of pin-to-pin compatible powerSPIN devices with different current ratings are offered: the L620x devices and the L6235 are rated at 5,6 A peak current (2,8 A rms), while the L622x devices are rated at 2,8 A peak, (1,4 A rms).
The powerSPIN platform is designed to allow optimal matching between the selected device and the application requirements, eliminating the need for expensive over-specification. The devices are supported by an evaluation environment, called practiSPIN, which comprises boards and a software tool that provides an interface between a PC and the motor driver, as well as performing power dissipation and thermal analysis simulation.
For more information contact Simon Churches, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected]
Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...Memory for asset tracking Altron Arrow
DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.
Read more...Online sensor technology hub
Analogue, Mixed Signal, LSI
Mouser’s sensor content hub offers an extensive collection of articles, blogs, eBooks, and product information from its technical experts and leading manufacturing partners.
Read more...Microchip and AVIVA Links collaboration Altron Arrow
News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.
Read more...Expanded STM32WL3x line for IoT sensors Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.
Read more...Ultra-low jitter clock buffers Altron Arrow
Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.
Read more...Ultra-low power MEMS accelerometer Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.
Read more...Converting high voltages without a transformer Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version