App note: L6234 three phase motor driver

An app note (PDF!) from STMicroelectronics on L6234 three phase motor driver: The L6234 is a DMOSs triple half-bridge driver with input supply voltage up 52V and output current of 5A. It can be used in a very wide range of applications. It has been realized in Multipower BCD60II technology which allows the combination of isolated DMOS […]

App note: AC switch triggering with 3.3 V power supply

Controlling AC switches from a 3.3V MCU pin, an app note (PDF) from ST. This document focuses on the calculation of gate current consumption of various types of AC switches when using a 3.3 V power supply. Until now, the standard of a 5 V power supply was used. In home appliance applications there is […]

App note: STM32 microcontroller system memory boot mode

Here’s an app note from ST discussing how the bootloader works and how it’s activated –the general concept of the bootloader (PDF!): The bootloader is stored in the internal boot ROM memory (system memory) of STM32 devices. It is programmed by ST during production. Its main task is to download the application program to the internal Flash memory through one […]