SLVSEQ3A September   2018  – December 2018 TVS1801


  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Voltage Clamp Response to 8/20 µs Surge Event
      2.      Functional Block Diagram
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings - JEDEC
    3. 7.3 ESD Ratings - IEC
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Electrical Characteristics
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 Protection Specifications
      2. 8.4.2 Reliability Testing
      3. 8.4.3 Zero Derating
      4. 8.4.4 Bidirectional Operation
      5. 8.4.5 Transient Performance
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Protection Specifications

The TVS1801 is specified according to both the IEC 61000-4-5 and IEC 61643-321 standards. This enables usage in systems regardless of which standard is required by relevant product standards or best matches measured fault conditions. The IEC 61000-4-5 standard requires protection against a pulse with a rise time of 8 µs and a half-length of 20 µs, while the IEC 61643-321 standard requires protection against a much longer pulse with a rise time of 10 µs and a half-length of 1000 µs.

The positive and negative surges are imposed to the TVS1801 by a combination wave generator (CWG) with a 2-Ω coupling resistor at different peak voltage levels. For powered-on transient tests that need power supply bias, inductances are used to decouple the transient stress and protect the power supply. The TVS1801 is post-tested by assuring that there is no shift in device breakdown or leakage at VRWM.

In addition, the TVS1801 has been tested according to IEC 61000-4-5 to pass a ±1-kV surge test through a 42-Ω coupling resistor and a 0.5-µF capacitor. This test is a common test requirement for industrial signal I/O lines and the TVS1801 precision clamp can be used in applicationos that have that requirement.

The TVS1801 integrates IEC 61000-4-2 level 4 ESD Protection and 80 A of IEC 61000-4-4 EFT Protection. These combine to ensure that the device can protect against most common transient test requirements.

For more information on TI's test methods for Surge, ESD, and EFT testing, refer to the TI's IEC 61000-4-x Tests for TI's Protection Devices application report.