TPSF12C3DYYR

Overview

The TPSF12C3DYYR is a common-mode active EMI filter IC designed for three-phase AC power systems. It operates within an EMI frequency range of 150kHz to 3MHz, providing low impedance paths for common-mode noise. The device features a peak injection current of ±80mA (typical) and an amplifier with a unity-gain bandwidth product of 113MHz. It supports a wide supply voltage range of 8V to 16V and functions across a junction temperature range of –40°C to 150°C. Packaged in a 14-pin SOT-23 thin (DYY) format measuring 4.2mm × 2mm, it integrates detection filtering and summing networks.

Feature Summary

• Voltage-sense, current-inject architecture utilizing capacitor multiplier circuits to simulate Y-capacitors for effective noise mitigation.
• Integrated compensation, protection, and enable input circuits simplify external component requirements and design complexity.
• Robust protection characteristics include withstand capability for 6kV surges per IEC 61000-4-5 standards.
• Functional safety capable with documentation available to aid system design compliance.

Applications

• Three-phase AC power systems requiring common-mode EMI reduction
• Industrial equipment adhering to CISPR 11 standards
• Consumer electronics meeting CISPR 32 Class B conducted emission limits

Procurement Notes

Verify the specific suffix DYYR corresponds to the standard tape-and-reel packaging configuration when placing orders. Confirm that the functional safety documentation requirements align with your system's certification goals. Ensure the operating supply voltage remains within the specified 8V to 16V range during integration. Check for any regional distribution restrictions or lead time variations associated with the Texas Instruments manufacturing facility.

Selection Notes

Select this component for applications requiring significant reduction in passive filter size and weight. It is suitable where low leakage current at line frequency is critical. Consider its use when robust surge immunity is needed without excessive external components. Ideal for designs targeting strict conducted emission limits in three-phase environments.

Part Context

This device belongs to the TPSF12C3 family of active filters. It specifically addresses common-mode noise in three-phase systems. The DYYR suffix indicates the specific package type and reel quantity. It complements other variants like TPSF12C1 for single-phase or different configuration needs.

Replacement Considerations

No public confirmed substitute part numbers are documented for this specific component. Direct replacement requires identical electrical specifications and pinout compatibility. Verify thermal performance and enclosure constraints before considering alternative manufacturers.

FAQ

How does the TPSF12C3DYYR reduce EMI compared to passive filters?

It uses a voltage-sense, current-inject technique with a capacitor multiplier circuit to simulate Y-capacitors, creating a low-impedance path for high-frequency noise while allowing smaller component sizes.

What is the maximum surge voltage the device can withstand?

The device can withstand 6kV surges according to the IEC 61000-4-5 standard, minimizing the need for additional external protection components.