DALLAS, March 20,
2023 /PRNewswire/ -- Texas Instruments (TI) (Nasdaq:
TXN) today debuted the industry's first stand-alone active
electromagnetic interference (EMI) filter integrated circuits
(ICs), enabling engineers to implement smaller, lighter EMI
filters, to enhance system functionality at reduced system cost
while simultaneously meeting EMI regulatory standards.
As electrical systems become increasingly dense and
interconnected, mitigating EMI is a critical system design
consideration for engineers. With innovative developments from
Kilby Labs, TI's research and
development labs for new concepts and breakthrough ideas, the new
portfolio of stand-alone active EMI filter ICs can sense and cancel
common-mode EMI by as much as 30 dB at frequencies between 100 kHz
and 3 MHz in single- and three-phase AC power systems. This
capability enables designers to reduce the size of chokes by 50%,
compared to purely passive filter solutions, and meet stringent EMI
requirements. For more information on TI's new power-supply filter
ICs portfolio, see TI.com/AEF.
"To meet customer needs for higher performance and lower-cost
systems, TI continues to advance in power innovations to
cost-effectively address EMI design challenges," said Carsten Oppitz, general manager for switching
regulators at TI. "We believe that this new portfolio of
stand-alone active EMI filter ICs will further help engineers solve
their design challenges and maximize performance and power density
in automotive, enterprise, aerospace and industrial
Significantly reduce system size, weight and cost and improve
One of the main challenges when designing high-density switching
regulators is how to implement a compact and efficient design
of the EMI input filter. Through capacitive amplification, these
new active EMI filter ICs enable engineers to shrink the inductance
value of common-mode chokes by as much as 80%, helping to
cost-effectively achieve improved mechanical reliability and
increased power density.
The new family of active EMI filter ICs consists of the TPSF12C1
and TPSF12C3 for single- and three-phase commercial applications
and TPSF12C1-Q1 and TPSF12C3-Q1 for automotive applications.
These devices can efficiently reduce the heat generated in a
power-supply EMI filter, which also extends filter capacitor
lifetimes and increases system reliability.
The new active EMI filter ICs incorporate sensing, filtering,
gain and injection stages. Offered in a SOT-23 14-pin package, the
IC integrates compensation and protection circuitry to further
reduce the implementation complexity and minimize the number of
Mitigate common-mode emissions to meet stringent EMI
Comité International Spécial des Perturbations Radioélectriques
(CISPR) standards are the global benchmark for limiting EMI in
electrical and electronic devices. The TPSF12C1, TPSF12C3,
TPSF12C1-Q1, and TPSF12C3-Q1 help detect, process and reduce EMI in
a broad range of AC/DC power supplies, on-board chargers, servers,
UPS and other similar systems where common-mode noise dominates.
Therefore, engineers will be able to address EMI design challenges
and meet CISPR 11, CISPR 32 and CISPR 25 EMI requirements.
TI's active EMI filter ICs meet IEC 61000-4-5 surge immunity
requirements, thus minimizing the need for external protection
components, such as transient voltage suppression (TVS) diodes.
With supporting tools, such as PSpice® for TI simulation models and
quick-start calculators, designers can easily select and implement
the optimal components for their system. To learn more about
designing with this new family of active EMI filter ICs, read the
technical article, "How a stand-alone active EMI filter IC shrinks
common-mode filter size."
See low-EMI and high power-density designs at APEC
TI will showcase the newest additions to its power-management
portfolio with stand-alone low-EMI active filter designs
featuring the TPSF12C1-Q1 at the 2023 Applied Power
Electronics Conference (APEC) March
19-23. In addition, TI will showcase system-level gallium
nitride (GaN) and silicon carbide (SiC) solutions for increasing
power density and efficiency. Visit TI at Booth No. 916, or see
TI.com/APEC for more information.
Throughout APEC, TI power experts will lead 38 industry and
technical sessions to address power management design challenges.
The full schedule of TI experts' industry and technical sessions is
available now at TI.com/APEC.
TI remains committed to pushing power further with continuous
breakthrough achievements such as low-EMI power innovations that
enable engineers to shrink filter size and cost, while
significantly maximizing performance, reliability and power density
Package, availability and pricing
Preproduction quantities of the automotive-grade TPSF12C1-Q1 and
TPSF12C3-Q1 are available now, only on TI.com, in a 4.2-mm-by-2-mm
SOT-23 14-pin package. The commercial-grade TPSF12C1 and TPSF12C3
will be available on TI.com in preproduction quantities by end of
March 2023. Pricing starts
at US$0.78 in 1,000-unit quantities. The TPSF12C1QEVM and
TPSF12C3QEVM evaluation modules are available on TI.com for
US$75. Multiple payment and shipping
options are available on TI.com. TI expects all devices to be
available in volume production in the second quarter of 2023, and
plans to release additional stand-alone active EMI filter ICs later
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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SOURCE Texas Instruments