Image Credit: Texas Instruments
Motor control is often the make-or-break factor in a product’s user experience. A washing machine that rattles during the spin cycle or a vacuum cleaner that surges noisily at startup will quickly frustrate users. For engineers, achieving smooth, quiet operation usually comes at the cost of a larger, more expensive controller or additional circuitry.
Texas Instruments is trying to make that trade-off disappear. The company has released two new devices in its C2000™ real-time MCU range, the F28E120SC and F28E120SB, aimed squarely at cost-sensitive designs that still demand precision control. Both parts offer roughly 30 percent more compute performance than earlier models, giving engineers room to run advanced algorithms without oversizing their hardware platform.
Motor Control with Fewer Compromises
The new MCUs are built to handle more than basic commutation. TI’s InstaSPIN™ software enables high-speed sensorless field-oriented control (FOC), letting designers extract more torque from the motor at startup and maintain smooth control across the speed range. Built-in vibration compensation can cut speed ripple by as much as 60 percent, which helps reduce audible noise and mechanical wear.
For real products, this means washing machines that stay balanced during spin, vacuums that ramp up quietly, and power tools that reach speed faster without big current spikes. These are the kinds of refinements that improve a brand’s reputation but usually push designers toward more expensive hardware.
Integration That Pays Off
By combining a C28x DSP core with a high-speed ADC and programmable gain amplifier, the F28E12x devices reduce the number of external components needed to complete the control loop. This simplifies board layouts, saves space, and improves noise performance, benefits that matter just as much as cost when working with compact consumer appliances.
High-Speed Capability
The devices are capable of controlling motors at speeds above 120,000 rpm (2 kHz electrical frequency). This can reduce the need for high gear ratios, lowering mechanical noise and improving long-term reliability. For engineers designing compact fans or small high-speed tools, that headroom allows more aggressive optimisation without risking instability.
Development Support
TI is offering preproduction quantities now starting at $0.49 in 1,000-unit volumes, alongside a $19 evaluation kit and reference designs to help teams prototype quickly. A complete software development kit, with ready-to-use algorithms and configuration tools, is also available.
For design teams under pressure to hit cost targets while delivering a premium user experience, these MCUs provide a practical way to raise motor-control performance without redesigning the entire system.
Learn more and read the original article on www.ti.com
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