Overview
The TVS1800DRVR, produced by Texas Instruments, is a robust surge protection device designed to protect systems from high-power transients and lightning strikes. This device is part of TI's Flat-Clamp family of surge protection devices and is particularly suited for industrial signal line applications. It offers a unique feedback mechanism that ensures precise flat clamping during fault conditions, keeping system exposure below 25 V. The TVS1800DRVR is available in a small 2 mm × 2 mm SON package, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Reverse Stand-off Voltage (VRWM) | - | -0.5 | 18 | - | V |
| Leakage Current (ILEAK) at 27°C | Measured at VIN = VRWM | 1.2 | - | 13 | nA |
| Leakage Current (ILEAK) at 85°C | Measured at VIN = VRWM | 9 | - | 330 | nA |
| Forward Voltage (VF) | IIN = 1 mA from GND to IO | - | - | - | V |
| Maximum Surge Current (8/20 µs) | IEC 61000-4-5 | - | - | 40 | A |
| Maximum Surge Power (8/20 µs) | IEC 61000-4-5 | - | - | 960 | W |
| Capacitance | - | - | 116 | - | pF |
| Package | - | - | SON (6) | - | - |
| Body Size | - | - | 2.00 mm × 2.00 mm | - | - |
Key Features
- Protection against ±1 kV, 42 Ω IEC 61000-4-5 surge test for industrial signal lines
- Max clamping voltage of 24.7 V at 40 A of 8/20 µs surge current
- Standoff voltage: 18 V
- Tiny 4 mm² footprint in a 2 mm × 2 mm SON package
- Survives over 5,000 repetitive strikes of 35 A 8/20 µs surge current at 125°C
- Low leakage current: 1.2 nA typical at 27°C and 9 nA typical at 85°C
- Low capacitance: 116 pF
- Integrated Level 4 IEC 61000-4-2 ESD protection and 80 A of IEC 61000-4-4 EFT protection
Applications
- Industrial sensor I/O
- Solid State Drives
- PLC I/O modules
- Medical equipment
- 12 V power lines
- 15 V analog signal inputs
- Appliances
Q & A
- What is the maximum surge current the TVS1800 can handle?
The TVS1800 can handle up to 40 A of IEC 61000-4-5 8/20 µs surge current.
- What is the standoff voltage of the TVS1800?
The standoff voltage of the TVS1800 is 18 V.
- What is the package size of the TVS1800?
The TVS1800 is available in a 2 mm × 2 mm SON package.
- How many repetitive surge strikes can the TVS1800 survive at high temperature?
The TVS1800 can survive over 5,000 repetitive strikes of 35 A 8/20 µs surge current at 125°C.
- What is the typical leakage current of the TVS1800 at 27°C and 85°C?
The typical leakage current is 1.2 nA at 27°C and 9 nA at 85°C.
- Does the TVS1800 provide ESD protection?
Yes, the TVS1800 integrates Level 4 IEC 61000-4-2 ESD protection.
- What are some common applications for the TVS1800?
Common applications include industrial sensor I/O, solid state drives, PLC I/O modules, medical equipment, and appliances.
- How does the TVS1800's small size benefit its application?
The small size of the TVS1800 allows it to be placed close to the input connector, reducing the effect of fault current coupling onto neighboring traces.
- What standards does the TVS1800 comply with for surge protection?
The TVS1800 complies with both IEC 61000-4-5 and IEC 61643-321 standards for surge protection.
- How does the TVS1800 handle high-temperature conditions?
The TVS1800 ensures robust performance up to 125°C with minimal derating of max power dissipation.
