Texas Instruments TVS0500 Flat-Clamp Surge Protection Device
Texas Instruments TVS0500 Flat-Clamp Surge Protection Device robustly shunts up to 43A 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 ±2kV IEC 61000-4-5 open circuit voltage coupled through a 42Ω impedance. The Texas Instruments TVS0500 uses a unique feedback mechanism to ensure precise flat clamping during a fault, assuring system exposure below 10V. 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 2kV, 42Ω IEC 61000-4-5 surge test for industrial signal lines
- Max clamping voltage of 9.2V at 43A of 8/20µs surge current
- 5V standoff voltage
- Tiny 4mm2 footprint
- Survives over 5,000 repetitive strikes of 35A 8/20µs surge current at 125°C
- Robust surge protection
- IEC61000-4-5 (8/20 µs): 43A
- IEC61643-321 (10/1000µs): 22A
- Low leakage current
- 70pA typical at 27°C
- 6.5nA typical at 85°C
- 155pF low capacitance
- Integrated Level 4 IEC 61000-4-2 ESD protection
Applications
- Industrial sensors
- PLC I/O modules
- 5V power lines
- Appliances
- Medical equipment
- Smart meters
Functional Block Diagram
Related Development Tools
Texas Instruments FLAT-CLAMP-TVS-EVM TVS Evaluation Module (EVM)
Demonstrates the characteristics, operation, and use of the TVSxx0x family of devices.
Published: 2018-06-13
| Updated: 2023-06-07