STMicroelectronics STSPIN32F0 250 and 600 V BLDC drivers

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STMicroelectronics has introduced four more devices in the STSPIN32F0 motor-control system-in-package family, which simplify the design of mains-powered home appliances and industrial equipment including corded power tools, drives, pumps, fans and compressors.

The 250 V STSPIN32F0251 and STSPIN32F0252, and 600 V STSPIN32F0601 and STSPIN32F0602 combine three-phase gate drivers and an STM32F0 Arm Cortex-M0 microcontroller to simplify high-voltage brushless DC (BLDC) motor drives. Popular control algorithms and application examples are provided, including single-shunt and three-shunt field-oriented control (FOC), as well as traditional sensored single-shunt and 6-step sensorless control.

The four devices are pin compatible, allowing hardware and firmware to be re-used in products for 110 and 250 VAC operation. The ICs feature a standby mode to help minimise power consumption in idle conditions.

All gate drivers integrate bootstrap diodes and protection circuitry including cross-conduction prevention and deadtime insertion. In addition, UVLO on both the lower and upper driving sections prevents the power switches from operating in low-efficiency or dangerous conditions. There is also a fast-acting smart ShutDown (smartSD) function for overload and overcurrent protection.

The integrated 48 MHz STM32F0 MCU lets users rely on the rich STM32 development ecosystem to build their applications. 4 KB SRAM and 32 KB Flash provide data and code storage, while analog and digital peripherals include a 12-bit ADC with up to 10 channels, six general-purpose timers, 21 general-purpose I/O (GPIO) pins, and I2C, UART and SPI ports. An integrated bootloader permits flexible device-lifecycle management by allowing firmware updates to be applied in the field.

For more information: www.st.com/stspin32f0-pr.