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Home > Industry News

Texas Instruments Introduced Industry-Advanced Standalone Active EMI Filter ICs to Support High-Density Power Supply Designs

Views : 431
Update time : 2023-04-01 09:25:57
        Texas Instruments (TI) today announced the industry's advanced standalone active electromagnetic interference (EMI) filter integrated circuits (ICs) that enable engineers to implement smaller, lighter EMI filters to enhance system functionality at a lower system cost while meeting EMI regulatory standards.
        As electrical systems become denser and more interconnected, EMI mitigation becomes a key system design consideration for engineers. Thanks to innovative development of new concepts and breakthrough ideas by Kilby Labs, a Texas Instruments R&D lab, a new family of standalone active EMI filter ICs can detect and eliminate up to 30 dB of common-mode EMI (frequency range 100 kHz to 3 MHz) in single-phase and three-phase AC power systems. This capability enables designers to reduce choke size by up to 50 percent compared to pure passive filter solutions and meet stringent EMI requirements.
        To meet our customers' needs for higher performance and lower cost systems, Texas Instruments continues to drive power supply innovations that address EMI design challenges in a cost-effective manner," said Carsten Oppitz, general manager of the switching regulator business unit at Texas Instruments. We believe our new portfolio of standalone active EMI filter ICs will further enable engineers to solve their design challenges and significantly improve performance and power density in automotive, enterprise, aerospace and industrial applications."
        Implementing a compact and efficient EMI input filter design is one of the main challenges when designing high-density switching regulators. With capacitive amplification, these new active EMI filter ICs enable engineers to reduce the inductance of common mode chokes by up to 80%, which will help improve mechanical reliability and power density in a cost effective manner.
        The new family of active EMI filter ICs includes the TPSF12C1 and TPSF12C3 for single-phase and three-phase commercial applications, and the TPSF12C1-Q1 and TPSF12C3-Q1 for automotive applications. these devices effectively reduce the heat generated in power supply EMI filters, thereby extending the life of filter capacitors and improving system reliability.
        Texas Instruments' active EMI filter ICs meet IEC 61000-4-5 surge immunity requirements, significantly reducing the need for external protection components such as transient voltage suppression (TVS) diodes. With support tools such as PSpice® for TI simulation models and quick-start calculators, designers can easily select and implement the right components for their systems.


 
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