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 Output current (A) +/- .1 Rating Automotive 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 Output current (A) +/- .1 Rating Automotive TI functional safety category Functional Safety-Capable
SOT-23-THN (DYY) 14
  • 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
  • –40°C to 150°C junction temperature range
  • 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 5-kV surge (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
  • –40°C to 150°C junction temperature range
  • 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 5-kV surge (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 25 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 25 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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Type Title Date
* Data sheet TPSF12C1-Q1 Standalone Active EMI Filter for Common-mode Noise Mitigation in Single-Phase AC Automotive Power Systems datasheet PDF | HTML 11 Nov 2022
Functional safety information TPSF12C1-Q1 Functional Safety FIT Rate, FMD, and Pin FMA PDF | HTML 11 Nov 2022
EVM User's guide TPSF12C1QEVM Active EMI Filter Evaluation Module for Single-Phase AC Systems PDF | HTML 09 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

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
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Simulation model

TPSF12C1-Q1 PSpice model

SNVMCA8.ZIP (294 KB) - PSpice Model
Simulation model

TPSF12C1-Q1 SIMPLIS model

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

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

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Supported products & hardware

Supported products & hardware

Products
Power-supply filter ICs
TPSF12C1-Q1 Automotive common-mode active EMI filter for single-phase systems TPSF12C3-Q1 Automotive common-mode active EMI filter 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
PCB layout

TPSF12C1QEVM PCB Layout Files

SNVR525.ZIP (3222 KB)
Package Pins Download
SOT-23-THIN (DYY) 14 View options

Ordering & quality

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