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TPSF12C1-Q1

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Automotive common-mode active EMI filter (AEF) for single-phase systems

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Data sheet

TPSF12C1-Q1

ACTIVE
Data sheet Order now

Product details

Device type Common-mode AEF Power supply solution AC/DC Supply voltage (max) (V) 16 Supply voltage (min) (V) 8 Number of phases 1 Iout (A) ±0.1 Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable
Device type Common-mode AEF Power supply solution AC/DC Supply voltage (max) (V) 16 Supply voltage (min) (V) 8 Number of phases 1 Iout (A) ±0.1 Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable
SOT-23-THN (DYY) 14 13.692 mm² 4.2 x 3.26
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Voltage-sense, current-inject active EMI filter
    • Optimized for CISPR 25 Class 5 automotive EMI requirements
    • Low impedance for common-mode emissions
    • 50%+ reduction in choke size, weight and cost
    • Peak inject current of ±80 mA (typical)
  • Wide supply voltage range of 8 V to 16 V
  • Junction temperature range of –40°C to 150°C
  • Simple configuration for single-phase AC systems
    • Integrated sensing filter and summing network
    • Low leakage current at line frequency
    • Simplified compensation network
  • Inherent protection features for robust design
    • Withstands surge of 6 kV (IEC 61000-4-5) with minimal external component count
    • Enable pin for remote ON and OFF control
    • VDD voltage UVLO protection with hysteresis
    • Thermal shutdown protection with hysteresis
  • 4.2-mm × 2-mm SOT-23 14-pin (DYY) package
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Functional Safety-Capable
  • Voltage-sense, current-inject active EMI filter
    • Optimized for CISPR 25 Class 5 automotive EMI requirements
    • Low impedance for common-mode emissions
    • 50%+ reduction in choke size, weight and cost
    • Peak inject current of ±80 mA (typical)
  • Wide supply voltage range of 8 V to 16 V
  • Junction temperature range of –40°C to 150°C
  • Simple configuration for single-phase AC systems
    • Integrated sensing filter and summing network
    • Low leakage current at line frequency
    • Simplified compensation network
  • Inherent protection features for robust design
    • Withstands surge of 6 kV (IEC 61000-4-5) with minimal external component count
    • Enable pin for remote ON and OFF control
    • VDD voltage UVLO protection with hysteresis
    • Thermal shutdown protection with hysteresis
  • 4.2-mm × 2-mm SOT-23 14-pin (DYY) package

The TPSF12C1-Q1 is an active filter IC designed to reduce common-mode (CM) electromagnetic interference (EMI) in single-phase AC power systems.

The active EMI filter (AEF) configured with voltage sense and current inject (VSCI) uses a capacitive multiplier circuit to emulate the Y-capacitors in a conventional passive filter design. The device senses the high-frequency noise on each power line using a set of sense capacitors and injects noise-canceling currents back into the power lines using an injection capacitor. The effective active capacitance is set by the circuit gain and the injection capacitance. The AEF sensing and injection impedances use relatively low capacitance values with small component footprints. The device includes integrated filtering, compensation and protection circuitry, and an enable input.

The TPSF12C1-Q1 provides a very low impedance path for CM noise in the frequency range of interest for EMI measurement. Enabling up to 30 dB of CM noise reduction at the lower end of specified frequency ranges (for example, 150 kHz to 3 MHz) significantly reduces the size, weight and cost of the CM filter implementation.

The TPSF12C1-Q1 is an active filter IC designed to reduce common-mode (CM) electromagnetic interference (EMI) in single-phase AC power systems.

The active EMI filter (AEF) configured with voltage sense and current inject (VSCI) uses a capacitive multiplier circuit to emulate the Y-capacitors in a conventional passive filter design. The device senses the high-frequency noise on each power line using a set of sense capacitors and injects noise-canceling currents back into the power lines using an injection capacitor. The effective active capacitance is set by the circuit gain and the injection capacitance. The AEF sensing and injection impedances use relatively low capacitance values with small component footprints. The device includes integrated filtering, compensation and protection circuitry, and an enable input.

The TPSF12C1-Q1 provides a very low impedance path for CM noise in the frequency range of interest for EMI measurement. Enabling up to 30 dB of CM noise reduction at the lower end of specified frequency ranges (for example, 150 kHz to 3 MHz) significantly reduces the size, weight and cost of the CM filter implementation.
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Technical documentation

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* Data sheet TPSF12C1-Q1 Standalone, Active, EMI Filter for Common-mode Noise Mitigation in Single-Phase, AC, Automotive Power Systems datasheet (Rev. A) PDF | HTML 28 Apr 2023
EVM User's guide TPSF12C1EVM-FILTER Active EMI Filter Evaluation Module for Single-Phase AC Power (Rev. A) PDF | HTML 28 Jul 2023
EVM User's guide TPSF12C1QEVM Active EMI Filter Evaluation Module for Single-Phase AC Systems (Rev. A) PDF | HTML 28 Jul 2023
Technical article How a stand-alone active EMI filter IC shrinks common-mode filter size 19 Mar 2023
White paper How Active EMI Power-Supply Filter ICs Mitigate Common-Mode Emissions PDF | HTML 16 Mar 2023
White paper 主動 EMI 濾波器 IC 如何降低單相和三相電源系統中的共模輻射，並提升功率密度 PDF | HTML 14 Feb 2023
White paper 액티브 EMI 필터 IC가 단상 및 3상 전원 시스템에서 공통 모드 방출을 완화하고 전력 밀도를 높이는 방법 PDF | HTML 14 Feb 2023
Functional safety information TPSF12C1-Q1 Functional Safety FIT Rate, FMD, and Pin FMA PDF | HTML 11 Nov 2022
Certificate TPSF12C1QEVM EU RoHS Declaration of Conformity (DoC) 01 Nov 2022

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPSF12C1EVM-FILTER — TPSF12C1 single-phase active EMI filter evaluation module

The TPSF12C1EVM-FILTER single-phase active EMI complete filter evaluation module (EVM) is designed to conveniently evaluate the performance of the TPSF12C1 active filter IC. The EVM helps to improve the common-mode (CM) electromagnetic interference (EMI) signature in single-phase AC power systems (...)
User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPSF12C1QEVM — TPSF12C1-Q1 single-phase active EMI filter evaluation module

The TPSF12C1-Q1 evaluation module (EVM) is specifically designed to conveniently evaluate the performance of the TPSF12C1-Q1 active filter IC. The solution improves the common-mode (CM) electromagnetic interference (EMI) signature in single-phase AC and 3-wire DC power systems. The TPSF12C1-Q1 IC (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPSF12C1 PSPICE AC Model

SNVMCC3.ZIP (236 KB) - PSpice Model
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Simulation model

TPSF12C1 PSpice Trans model (Rev. B)

SNVMCA8B.ZIP (273 KB) - PSpice Model
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Simulation model

TPSF12C1-Q1 SIMPLIS model

SNVMCB1.ZIP (91 KB) - SIMPLIS Model
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Calculation tool

TPSF12CX-DESIGN-CALC — TPSF12Cx quickstart design tool for common-mode AEF

Welcome to the TPSF12C1/-Q1 and TPSF12C3/-Q1 quickstart design tool. This standalone tool facilitates and assists the power-supply engineer with the design of an AEF circuit based on this family of common-mode AEF ICs.  As such, the user can expeditiously arrive at an optimized design to meet (...)

Supported products & hardware

Supported products & hardware

Products
Power-supply filter ICs
TPSF12C1-Q1 — Automotive common-mode active EMI filter (AEF) for single-phase systems TPSF12C1 — Common-mode active EMI filter (AEF) for single-phase systems TPSF12C3-Q1 — Automotive common-mode active EMI filter (AEF) for three-phase systems TPSF12C3 — Common-mode active EMI filter (AEF) for three-phase systems
Hardware development
Evaluation board
TPSF12C1QEVM — TPSF12C1-Q1 single-phase active EMI filter evaluation module TPSF12C3QEVM — TPSF12C3-Q1 three-phase active EMI filter evaluation board TPSF12C1EVM-FILTER — TPSF12C1 single-phase active EMI filter evaluation module
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PCB layout

TPSF12C1EVM-FILTER PCB Layout Files

SLVRBN7.ZIP (15434 KB)
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PCB layout

TPSF12C1QEVM PCB Layout Files

SNVR525.ZIP (3222 KB)
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Package Pins Download
SOT-23-THN (DYY) 14 View options
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  • Ongoing reliability monitoring

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