DALLAS, Sept. 8, 2021 /PRNewswire/ -- Texas Instruments
(TI) (Nasdaq: TXN) today introduced the industry's first 70-W
brushless DC (BLDC) motor drivers to provide code-free, sensorless
trapezoidal and field-oriented control (FOC). The devices enable
engineers to spin a BLDC motor in less than 10 minutes –
eliminating months of design time for engineers designing a wide
variety of industrial systems such as major and small home
appliances, and medical applications such as ventilators and
continuous positive airway pressure (CPAP) machines. With
integrated real-time control and up to 18 discrete components –
including power metal-oxide semiconductor field-effect transistors
(MOSFETs) – the devices also speed system response time while
reducing board space by as much as 70%, all while providing
best-in-class acoustic performance. For more information,
see www.ti.com/mcf8316a-pr and www.ti.com/mct8316a-pr.
"The need for real-time motor control is more critical than
ever, thanks to broad-reaching trends like power efficiency and
automation, as well as increasing demand for quieter motors," said
Noman Akhtar, senior research
analyst, Omdia. "A growing number of industrial systems are
transitioning from AC induction to BLDC motors, which are more
power-efficient but require complex hardware and optimized software
designs to deliver high performance. Meeting designers' needs for
faster motor response while shortening the overall design cycle
will be an important step forward for next-generation industrial
Accelerate design time with code-free, sensorless motor
The MCF8316A and MCT8316A BLDC motor drivers include a unique
set of commutation control algorithms that eliminate the need to
develop, maintain and qualify motor-control software, which
eliminates months of design time. The algorithms, along with a high
level of integration, enable these motor drivers to manage critical
functions such as motor fault detection, while implementing
protection mechanisms to increase system reliability. Because these
motor drivers integrate sensorless technology to determine rotor
position, they eliminate the need for external Hall sensors, which
reduces system cost and increases reliability.
Additionally, the MCF8316A sensorless FOC motor driver
intelligently extracts motor parameters, enabling designers to
quickly tune a motor while delivering consistent system performance
regardless of motor manufacturing variations. The MCT8316A
sensorless trapezoidal control motor driver enables designers to
tune a motor using only five hardware pins, simplifying systems by
eliminating the need for a microcontroller interface.
Read the technical article, "3 ways to speed cycle time when
designing with brushless-DC motors," to learn more.
Best-in-class acoustic performance
The MCF8316A and MCT8316A BLDC motor drivers provide advanced
real-time control capabilities to help engineers achieve
industry-leading acoustic performance in applications such as air
purifiers, refrigerators, washing machines and fans. The MCF8316A
includes a patented, precise automatic dead-time compensation
technique that compensates for current distortion to enable
engineers to optimize motor acoustic performance. The MCT8316A
includes variable trapezoidal control techniques that designers can
use to reduce motor noise.
Read the application brief, "How to Reduce Motor Noise with
Code-Free, Sensorless BLDC Motor Drivers" to learn how
engineers can use these devices to achieve the best acoustic
performance for appliance designs.
Speed system response with real-time control
The MCT8316A sensorless trapezoidal control motor driver can
reach a maximum motor electric speed of 3.5 kHz, which is faster
than any other code-free, sensorless motor driver. This speeds
system response in applications such as robotic vacuums that
require fast and precise motor control.
The MCT8316A and MCF8316A are also the industry's first to
provide a quick and controlled way to actively decelerate a motor,
enabling engineers to stop a motor 50% faster than traditional
motor-control techniques. Further, the devices can stop a motor
without indiscriminately pumping energy back into the rail, which
protects the system from damage.
Reduce board space by as much as 70%
The MCF8316A and MCT8316A can enable designers to shrink their
board space by as much as 70% and reduce total motor system cost.
The devices integrate three gate drivers and six high- and low-side
MOSFETs with 50 mΩ of on-state resistance (RDS(on))
each, making them the first BLDC motor drivers to enable up to 70 W
of power with 8 A of peak current for 12- and 24-V systems. The
motor drivers also integrate components such as a low-dropout
regulator, DC/DC step-down regulator and current-sense amplifiers,
eliminating as many as 18 discrete integrated circuits.
Package, availability and pricing
Pre-production versions of the MCF8316A and MCT8316A are
available exclusively on TI.com in a 40-pin, 5-mm-by-7-mm quad flat
no-lead package. Pricing starts at US$1.75 in 1,000-unit quantities. Multiple
payment and shipping options are available on TI.com.
View device demos during the TI Live! Tech Exchange
TI will demonstrate the MCF8316A and MCT8316A during the
company's TI Live! Tech Exchange virtual event,
Sept. 27-29, 2021. During the event,
TI experts will discuss real-time control, vision sensing,
automotive and power management design trends in a series of
keynotes, roundtable discussions, technical sessions and demos.
Learn more at ti.com/techexchange.
About Texas Instruments
Texas Instruments Incorporated (Nasdaq: TXN) is a global
semiconductor company that designs, manufactures, tests and sells
analog and embedded processing chips for markets such as
industrial, automotive, personal electronics, communications
equipment and enterprise systems. Our passion to create a better
world by making electronics more affordable through semiconductors
is alive today, as each generation of innovation builds upon the
last to make our technology smaller, more efficient, more reliable
and more affordable – making it possible for semiconductors to go
into electronics everywhere. We think of this as Engineering
Progress. It's what we do and have been doing for decades. Learn
more at TI.com.
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