TVS1801
- Protection against 1 kV, 42-Ω IEC 61000-4-5 surge test for industrial signal lines
- Bidirectional polarity enables protection against bipolar signaling or miswiring conditions
- Clamping voltage of 27.4 V at 30 A of 8/20 µs surge current
- Standoff voltage: ±18 V
- Small 3 mm × 3 mm SON footprint
- Survives over 5,000 repetitive strikes of 30-A 8/20 µs surge current at 125°C
- Robust surge protection
- IEC61000-4-5 (8/20 µs): 30 A
- IEC61643-321 (10/1000 µs): 4.5 A
- Low leakage current
- 0.4 nA typical at 27°C
- 280 nA maximum at 85°C
- Low capacitance: 65 pF
- Integrated level 4 IEC 61000-4-2 ESD protection
The TVS1801 device shunts up to 30 A of IEC 61000-4-5 fault current to protect systems from high-power transients or lightning strikes. The device survives the common industrial signal line EMC requirement of 1-kV IEC 61000-4-5 open circuit voltage coupled through a 42-Ω impedance. The TVS1801 uses a feedback mechanism to ensure precise flat clamping during a fault, keeping system exposure lower than traditional TVS diodes. The tight voltage regulation allows designers to confidently select system components with a lower voltage tolerance, lowering system costs and complexity without sacrificing robustness. The TVS1801 has a ±18-V operating range to enable operation in systems that require protection against reverse wiring conditions.
In addition, the TVS1801 is available in a small SON footprint designed for space constrained applications, offering a significant size reduction compared to standard SMA and SMB packages. Low device leakage and capacitance ensure a minimal effect on the protected line. To ensure robust protection over the lifetime of the product, TI tests the TVS1801 against 5000 repetitive surge strikes at 125°C with no shift in device performance.
The TVS1801 is part of TI’s Flat-Clamp family of surge devices. For a deeper look at the Flat-Clamp family, refer to the Flat-Clamp Surge Protection Technology for Efficient System Protection white paper.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TVS1801 18-V Bidirectional Flat-Clamp Surge Protection Device datasheet (Rev. B) | PDF | HTML | 2022年 3月 5日 |
| Application brief | Protecting I/O modules from surge events | 2019年 2月 4日 | ||
| Application brief | TVS Surge Rating: Power vs. Current | 2018年 11月 12日 | ||
| White paper | Demystifying surge protection | 2018年 11月 6日 | ||
| User guide | Flat Clamp TVS Evaluation Module—Adaptor Boards | 2018年 9月 10日 | ||
| Application note | How to select a Surge Diode | 2018年 8月 29日 |
設計與開發
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FLAT-CLAMP-TVS-EVM — TVSxx0x 精密突波防護二極體評估模組
TIDA-010008 — 適合於電網應用之瞬態保護的平箝制 TVS 架構參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
訂購與品質
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- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
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