STMicroelectronics STSPIN32G0 Brushless Motor Controllers

It embeds a triple half-bridge gate driver capable of driving power MOSFETs with a current capability of 600mA (sink and source). Thanks to an integrated interlocking function, the high and low-side switches of the same half-bridge cannot be simultaneously driven high.

An internal DC-DC buck converter provides a 3.3V voltage suitable for supplying both the MCU and external components. An internal LDO linear regulator provides the supply voltage for gate drivers. The integrated operational amplifiers are available for signal conditioning, for example, current sensing across the shunt resistors. A comparator is integrated to perform overcurrent protection.

The integrated MCU (STM32G031x8) allows the performing of field-oriented control, the 6-step sensorless, and other advanced driving algorithms, including the speed control loop. It has a read-protection and write-protection feature for the embedded flash memory to protect against unwanted writing and/or reading.

The STMicroelectronics STSPIN32G0 also features overtemperature and undervoltage lockout protections and can be put into standby mode to reduce power consumption. It provides 23 general-purpose I/O ports (GPIO), one 12-bit analog-to-digital converter with up to 11 channels performing conversions in single-shot or scan modes, and five synchronizable general-purpose timers. It supports an easy-to-use debugging serial interface (SWD). The embedded bootloader allows flash and option byte management through UART and I²C interfaces.