Controller with integrated MCU simplifies design of brushless dc motors
The STSPIN32G0A1TR from STMicroelectronics integrates an STM32G0 microcontroller, three-phase gate driver, and motor-control peripherals into a single system-in-package (SiP), reducing external component count in compact electric drives.
The STSPIN32G0A1TR controller combines a 64MHz Arm® Cortex®-M0+ MCU with a three-phase 48V gate driver, enabling both control computation and power-stage management in a single package. This reduces the number of discrete components required in the design of a brushless dc (BLDC) or permanent magnet synchronous motor (PMSM).
The gate driver includes integrated bootstrap diodes to remove the need for external charge-pump components. Sink and source currents up to 600mA support a wide range of MOSFET choices, and internal interlocking prevents shoot-through during switching transitions.
Integrated protection functions, including over-current detection, cross-conduction prevention, and gate-driver under-voltage monitoring, support safe operation without additional external components. The internal 3.3V buck converter and 12V LDO supply the MCU core and gate driver, reducing external regulation requirements.
The STSPIN32G0A1TR is supplied in a 48-pin VFQFPN package measuring 7mm x 7mm x 1mm.