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]
Reference board for cardio monitoring Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STDES-ESP01 reference board from STMicroelectronics demonstrates the capability of the ST1VAFE6AX and ST1VAFE3BX biosensors to detect ECG and SCG signals.
Read more...ST MCUs extend ultra-low power innovation Altron Arrow
DSP, Micros & Memory
STMicroelectronics has introduced new STM32U3 microcontrollers with cutting-edge power-saving innovations that ease deployment of smart connected tech, especially in remote locations.
Read more...Multicell battery monitoring Altron Arrow
Power Electronics / Power Management
The LTC6811 from Analog Devices is a multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1,2 mV.
Read more...A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...Innovative satellite navigation receiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released an innovative satellite navigation receiver to democratise precise positioning for automotive and industrial applications.
Read more...LED driver for industrial power supply indication Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
Read more...High-voltage step-down DC-DC converter Altron Arrow
Power Electronics / Power Management
The MAX17793 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input voltage range of 3 to 80 V.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
printer friendly version