20% board space reduction with integrated current sensing function

TI announced the addition of three new devices for 24V stepper motors to its high-performance stepper motor driver family. Two of these products utilize TI's patented AutoTune™ technology, eliminating the need for stepper motor tuning, and offer two integrated current sensing capabilities.

TI explained that this feature makes these driver products suitable for differentiated 3D printers and robots, factory automation equipment, banknote counters, etc.

In addition, it was stated that the DRV8880 and DRV8881 devices can reduce design time by weeks or months by using AutoTune technology, thereby eliminating the need for time-consuming and repetitive manual tuning.

In addition, it was stated that the intelligent functions embedded in the chip allow for dynamic monitoring of motor performance under various conditions throughout the product lifecycle and appropriate adjustment of deceleration settings accordingly. This has made it possible to design a motor that operates quietly and efficiently despite variations in motor characteristics, supply voltage, load, and torque.

TI stated that the new DRV8885 bipolar stepper motor driver, equipped with integrated current sensing capabilities, can be used in motor systems that do not require the stability and lifespan benefits of AutoTune technology. It further explained that by using TI's proprietary technology, the current supplied to the motor can be accurately adjusted without two external sensing resistors, thereby saving up to 20% of board space and simplifying wiring compared to competing products.