Motor Driver Embeds 32-Bit MCU

STMicroelectronics’ STSPIN32F0A programmable motor controller integrates gate drivers for three external MOSFET half-bridges, an STM32F0 microcontroller (MCU), a 3.3V dc/dc switching converter, and a 12V LDO regulator in a lightweight, 7 mm x 7 mm outline. The 48-MHz MCU with 32-KB Flash can run motor control algorithms such as six-step sensor-less, field-oriented control or position-sensed control, as well as the user application.

 

The STSPIN32F0A has an extended operating-voltage range from 6.7V to 45V and can run from batteries as small as a pair of LiPo cells in mobile robots, gimbals, or drones. It is also viable for power tools, portable appliances like air purifiers and small refrigerators, as well as server cooling fans and 3D printers.

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Other features include 16 programmable I/O pins and MCU peripherals that save CPU involvement to handle motor back-EMF, a 12-bit/nine-channel ADC, three operational amplifiers, five general-purpose timers, and I2C, UART, and SPI interfaces. Users can also access the boot loader, gaining flexibility to upgrade or update firmware over the air.

 

The STSPIN32F0A is available immediately, in 7mm x 7mm QFN, priced from $1.605 for orders of 1000 pieces. For more specs, an STSPIN32F0A datasheet is available. For more info, contact STMicroelectronics, Burlington, MA. 781-861-2650

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