Built-in safety features including easy power supply, overcurrent, short circuit, and overheat protection

STMicroelectronics (ST) has launched the STSPIN233, a low-voltage motor driver that integrates a 200mΩ 1.3Arms power stage in a compact 3 x 3mm package, targeting single-shunt and three-shunt brushless motor drives.

Additionally, the STSPIN233's standby current is the industry's lowest at less than 80nA. Specifically, it can be switched into standby mode under logic control, extending battery life in devices such as drone camera gimbals, educational robots, toothbrushes, razors, medical syringe pumps, and small drives in Internet of Things (IoT) devices.

The STSPIN233 is easy and simple to power. Its input voltage range is 1.8 to 10 V, allowing it to be powered primarily by a single lithium-ion cell. Safety features such as overcurrent, short circuit, overheat protection, UVLO, and interlocking are also built in, making system design simpler.

The development ecosystem consists of a Nucleo expansion board (X-NUCLEO-IHM17M1) and related software tools (X-CUBE-SPN17 for STM32Cube), and allows for rapid evaluation and prototyping using the easy-to-use STM32Cube software development environment that includes tools, middleware, and application code examples.

With the introduction of the STSPIN233, ST completes its portfolio of ultra-compact monolithic low-voltage drivers for stepping, brushed, or brushless motors in small battery-powered devices. Comprising the STSPIN220, STSPIN230, STSPIN233, STSPIN240, and STSPIN250, the family features dedicated Nucleo evaluation boards and the X-CUBE software package and offers flexible choices including single, dual, or high-current (2.6A) brushed motor control, and sensored or sensorless BLDC control.