Mouser: low-cost motor controller includes six-channel PWM module

Mouser Electronics is now stocking the MC9S08SU 8-bit microcontroller from NXP Semiconductors. This single-chip device for 4.5 – 18 V motor control applications delivers high performance with tight integration to help lower BOM costs and reduce footprint by up to 50 percent for space-constrained applications.

The NXP MC9S08SU microcontroller provides up to 16 kbytes of flash memory and 768 bytes of internal RAM to enhance in-application reprogrammability and reduce development time. The device’s core includes a three-phase MOSFET pre-drivers unit that supports three high-side p-channel and three low-side n-channel MOSFETs, as well as amplifiers for current measurement and over-current and over-voltage protection.

The MC9S08SU microcontroller offers a rich set of features, including a six-channel PWM module, two 16-bit pulse width timers, a two-channel flex timer, and a 16-bit module timer. It also has two 5-channel, 12-bit ADCs and a three-phase analog comparator for sensorless control, plus an SCI module and an I2C module that supports the SMBus interface.

The microcontroller is available in a 4 × 4 mm, 24-pin QFN package and operates over a temperature range of - 40 to 105 °C. The microcontroller is ideal for a variety of motor control applications, including BLDC motors, DC fans, healthcare devices, power tools, and electronic speed control (ESC) for drones and robotics.

For development, Mouser also stocks the S08SU16-EVK evaluation board. The board demonstrates a simple control approach to a low-power, three-phase, brushless DC motor drive application using back electromotive force sensing for position recognition.

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