DALLAS, Aug. 22,
2023 /PRNewswire/ -- Texas Instruments (TI) (Nasdaq:
TXN), a leader in advanced sensing technologies, today debuted new
current sensors to help engineers simplify their designs while
improving accuracy. Designed for a broad range of common-mode
voltages and temperatures, the new products include a lowest-drift
isolated Hall-effect current sensor for high-voltage systems and a
portfolio of current shunt monitors that eliminate the need for an
external shunt resistor for nonisolated voltage rails.
The new TMCS1123 Hall-effect current sensor offers design
simplicity and accuracy for high-voltage systems, featuring the
industry's highest reinforced isolation and highest accuracy over
lifetime and temperature. For nonisolated systems up to 85 V and 75
ARMS, TI's new EZShunt™ portfolio includes the
industry's smallest fully integrated current shunt monitor and the
industry's highest-accuracy 75-A integrated shunt solution. For
more information, see TI.com/TMCS1123 and TI.com/EZShunt.
"When choosing a current-sensing solution, design engineers
weigh the trade-offs of four key factors: cost, size, accuracy and
speed," said Jason Cole, business
unit manager. "These new products highlight how the breadth of our
sensing technologies address this design challenge for a variety of
systems. Take the TMCS1123, for example; its high accuracy and low
propagation delay enable designers to now use Hall-effect sensors
in high-voltage systems where they couldn't before – and that opens
the door to reduce system cost and size."
Achieve fast, accurate control in high-voltage systems with
Hall-effect current sensors
The need for highly accurate
current measurements in high-voltage systems such as electric
vehicle chargers and solar inverters is growing, but Hall-effect
current sensors have typically been overlooked given their high
drift over lifetime. The TMCS1123 Hall-effect current sensor
features the highest reinforced isolation working voltage of 1,100
VDC. The TMCS1123 also features a maximum sensitivity
error of ±0.75% with 50 ppm/°C drift over temperature and ±0.5%
drift over lifetime. With this high accuracy, the TMCS1123 enables
designers to optimize system performance while simplifying design.
The high precision and stability over lifetime remove the need to
recalibrate equipment, reducing costly and time-consuming
maintenance.
In addition, achieving precise control of power conversion is
paramount for optimizing system efficiency and protection. The
TMCS1123 features low propagation delay of 600 ns and bandwidth of
250 kHz, which enable faster control loops while keeping noise low
to help increase system efficiency. To learn more, see the
technical article, "How to simplify accurate current sensing in
high-voltage systems."
Simplify and reduce system size with EZShunt
technology
TI's new EZShunt portfolio of current-sensing
solutions simplifies designs by removing the need for an external
shunt resistor. The portfolio provides a fully integrated
current-sensing solution that fits within the footprint of a 1206
shunt resistor, offering the value of a discrete solution with the
simplicity of a single chip.
The EZShunt portfolio offers both cost-optimized and
high-accuracy options, featuring drift as low as 25 ppm/°C, in a
variety of packages and shunt values. The INA700 is the industry's
smallest integrated current shunt monitor, enabling engineers to
reduce the size of their current-sensing solution by as much as
84%. The portfolio also includes the INA781, the industry's
highest-accuracy 75-A integrated shunt solution, which supports
common-mode voltages up to 85 V.
TI's new Hall-effect and EZShunt current-sensing solutions build
on the company's commitment to helping engineers sense the world
more accurately. To learn more, see TI.com/sensing.
Package, availability and pricing
Preproduction
quantities of the TMCS1123 Hall-effect current sensor are available
now, only on TI.com, in a 10.3-mm-by-10.3-mm, 10-pin small outline
integrated circuit (SOIC) package. Pricing starts at US$2.37 in 1,000-unit quantities. Designers can
purchase the TMCS1123EVM for US$49.99. Multiple payment and shipping options
are available on TI.com. Higher bandwidth and automotive-qualified
versions of the TMCS1123 are expected to be available in fourth
quarter of 2023 and second quarter of 2024, respectively.
Preproduction quantities of EZShunt products are available now,
only on TI.com, in a variety of package options as small as
1.319-mm x 1.239-mm. Pricing starts at US$0.80. Designers can purchase evaluation
modules starting at US$49.99.
Multiple payment and shipping options are available on TI.com.
Analog and automotive versions of EZShunt products are expected to
be available in second quarter of 2024.
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.
Trademarks
EZShunt is a trademark of Texas
Instruments. All registered trademarks and other trademarks belong
to their respective owners.
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SOURCE Texas Instruments