Calculation tool
Data sheet
TPSF12C1-Q1
- 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.
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Technical documentation
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View all 4 | 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
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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 (...)
| Package | Pins | Download |
|---|---|---|
| SOT-23-THIN (DYY) | 14 | View options |
Ordering & quality
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