New-Tech Europe Magazine | Q4-2020 | Digital Edition

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manufactured devices. Unlike other SiC devices that degrade under extreme conditions, Microchip devices have demonstrated no degradation in performance, increasing the application life. Microchip SiC solutions lead the industry in reliability and ruggedness. The company’s SiC SBD ruggedness testing demonstrates 20 percent higher energy withstand in Unclamped Inductive Switching (UIS), and among the lowest leakage currents at elevated temperatures, increasing system life and enabling a more reliable operation. Microchip’s SiC automotive power devices complement its broad portfolio of controllers, analog and connectivity solutions providing designers with total system solutions for electric vehicles and charging stations. Microchip also provides a broad portfolio of 700, 1200 and 1700V SiC SBD and Metal Oxide Silicon Field Effect Transistor (MOSFET) power modules utilizing its newest generation of SiC die. In addition, its dsPIC® digital signal controllers deliver performance, low power consumption and flexible peripherals. Microchip’s AgileSwitch® family of digital programmable gate drivers further accelerates the process of moving from the design stage to production. These solutions also have applications across renewable, grid, industrial, transportation, medical, data center and aerospace and defense systems. Development Tools Microchip’s AEC-Q101-qualified SiC SBD devices are supported with SPICE and PLECS simulation models and MPLAB® Mindi™ Analog Simulator. Also available is a PLECS reference design model that uses Microchip’s SBDs (1200V, 50A) as part of the power stage — the Vienna 3-Phase Power Factor Correction (PFC) reference design. Pricing and Availability Microchip’s AEC-Q101 qualified 700 and 1200V SiC SBD devices (also available as die for power modules) for automotive applications are available now for volume production orders. For additional information, contact a Microchip sales representative, authorized worldwide distributor, or visit Microchip’s website.

STMicroelectronics Simplifies Development of Cordless Power Tools with Plug-and-Play STSPIN32 Prototype Boards Aiding the development of state-of-the-art cordless home and garden power tools, STMicroelectronics has introduced two new plug-and-play boards for controlling 3-phase brushless motors powered by up to 56V Li-ion batteries. Based on ST’s highly integrated STSPIN32 motor-control Systems-in-Package, the STEVAL-PTOOL1V1 and STEVAL- PTOOL2V1 evaluation boards fulfil key requirements of power tools including small dimensions and low standby current. Firmware is supplied for six-step motor commutation using Hall-effect rotor-position sensing, which ensures low torque ripple and optimum power efficiency. The STEVAL-PTOOL1V1 for equipment powered by Li-ion battery packs from two cells (7.4V) to six cells (22.2V) has a 70mm x 30mm footprint and delivers up to 15A continuous current. Standby current is less than 1µA. At the heart of the board is the STSPIN32F0B motor controller, which contains an STM32F0* microcontroller, 3-phase half-bridge gate driver, 12V and 3.3V voltage regulators, an op-amp for current sensing and power-stage protection features such as programmable over-current protection (OCP), cross- conduction prevention and under-voltage lockout (UVLO). The STEVAL-PTOOL1V1 power stage features the ST Power MOSFET N-channel 60V STripFET F7 technology. The STEVAL-PTOOL2V1, for battery sizes from eight cells (29.6V) to 15 cells (55.5V), can deliver up to 19A continuous current. It is controlled by ST’s STSPIN32F0252 motor controller, which contains a 3-phase 250V gate driver, an STM32F0* microcontroller, and a comparator designed to offer very fast and flexible OCP. The STSPIN32F0252’s rugged design allows output pins to resist below-ground

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