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Texas Instruments TVS1800 Flat-Clamp Surge Protection Device

Texas Instruments TVS1800 Flat-Clamp Surge Protection Device robustly shunts up to 40A of IEC 61000-4-5 fault current to protect systems from high power transients or lightning strikes. The device offers a solution to the common industrial signal line EMC requirement to survive up to ±1kV IEC 61000-4-5 open circuit voltage coupled through a 42Ω impedance. The Texas Instruments TVS1800 uses a unique feedback mechanism to ensure precise flat clamping during a fault, assuring system exposure below 25V. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness.

Features

  • Protection against ±1kV, 42Ω IEC 61000-4-5 surge test for industrial signal lines
  • Max clamping voltage of 24.7V at 40A of 8/20µs surge current
  • 18V standoff voltage 
  • Tiny 4mm2 footprint
  • Survives over 5,000 repetitive strikes of 35A 8/20µs surge current at 125°C
  • Integrated Level 4 IEC 61000-4-2 ESD protection
  • Robust surge protection
    • IEC 61000-4-5 (8/20µs): 40A
    • IEC 61643-321 (10/1000µs): 6A
  • Low leakage current
    • 1.2nA is typical at 27°C
    • 9nA is typical at 85°C
  • 116pF low capacitance: 

Applications

  • Industrial sensor I/O
  • Solid state drives
  • PLC I/O modules
  • Medical equipment
  • 12V power lines
  • 15V analog signal inputs
  • Appliances

Functional Block Diagram

Block Diagram - Texas Instruments TVS1800 Flat-Clamp Surge Protection Device

Development Tools

Texas Instruments FLAT-CLAMP-TVS-EVM TVS Evaluation Module (EVM)

Demonstrates the characteristics, operation, and use of the TVSxx0x family of devices.

Learn Moreà propos de Texas Instruments FLAT-CLAMP-TVS-EVM TVS Evaluation Module (EVM) View Productslié à Texas Instruments FLAT-CLAMP-TVS-EVM TVS Evaluation Module (EVM)
Publié le: 2018-05-30 | Mis à jour le: 2025-07-03