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TI TPSF12C1DYYRRoHS

Manufacturer
TI
MPN
TPSF12C1DYYR
LCSC Part #
C20417397
Packaging
SOT-23-THIN-14
Customer #
Key Attributes
SOT-23-THIN-14 Filters - Active RoHS
Datasheetpdf iconTI TPSF12C1DYYR
In-Stock: 58
58 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.4648$ 1.5282$ 1.53
10+$ 2.0678$ 1.2821$ 12.82
30+$ 1.818$ 1.1272$ 33.82
100+$ 1.5635$ 0.9694$ 96.94
500+$ 1.4486$ 0.8982$ 449.10
1,000+$ 1.3995$ 0.8677$ 867.70
Standard Packaging3000/Full Reel
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Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/Filters - Active
ManufacturerTI
PackagingSOT-23-THIN-14
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

TPSF12C1 is an active filter IC designed to reduce common-mode (CM) EMI in single-phase AC power systems. An active EMI filter (AEF) configured with voltage sensing and current injection (VSCI) uses a capacitance multiplication circuit to emulate the Y-capacitors in a conventional passive filter design. The device uses a set of sensing capacitors to sense high-frequency noise on each power line, and uses injection capacitors to inject cancellation current back into the power lines. The effective active capacitance is set by the circuit gain and the injection capacitance. The sensing and injection impedances of the AEF use relatively low capacitance values and a smaller component footprint. The device includes integrated filtering, compensation, and protection circuits, along with an enable input. TPSF12C1 provides an extremely low-impedance path for CM noise within the frequency range of interest for EMI measurements. It achieves up to 30 dB of CM noise reduction at the lower end of the specified frequency range (e.g., 150 kHz to 3 MHz), significantly reducing the size, weight, and cost of CM filter implementations.

Features

AI Translation
  • Functional safety capable, with documentation to support functional safety system design.
  • Voltage-sensing, current-injection active EMI filter, optimized for CISPR 11 and CISPR 32 Class B conducted EMI requirements.
    • Low impedance for common-mode emissions within the applicable EMI frequency range (150 kHz to 3 MHz).
    • Choke size, weight, and cost reduced by more than 50%.
    • Typical peak injection current of ±80 mA.
    • Amplifier unity-gain bandwidth of 113 MHz.
  • Wide supply voltage range: 8 V to 16 V.
  • Junction temperature range: –40°C to 150°C.
  • Simple external configuration for single-phase AC power systems.
    • Integrated sensing filter and summing network.
    • Low leakage current at line frequency.
    • Simplified compensation network.
  • Inherent protection features for robust design.
    • 6 kV (IEC 61000-4-5) surge withstand with minimal external components.
    • Enable pin for remote on/off control.
    • VDD undervoltage lockout (UVLO) protection with hysteresis.
    • Thermal shutdown protection with hysteresis.
  • 4.2 mm × 2 mm SOT-23 14-pin (DYY) package.

Applications

AI Translation
  • Power delivery — high-density server rack power supplies
  • HVAC motor control
  • Welding machines, inverters, and other industrial systems
  • Telecom AC/DC rectifiers