TVS1801 Texas instruments

TVS1801

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TVS1801

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Описание

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 TIs 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.

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

Number of channels	1
IO capacitance (typ) (pF)	65
Vrwm (V)	18
IEC 61000-4-2 contact (±V)	8000
IEC 61000-4-5 (A)	30
Features	Flat-clamping, Surge protection
Bi-/uni-directional	Bi-directional
Dynamic resistance (typ)	0.05
Interface type	General purpose
Clamping voltage (V)	27.4
IO leakage current (max) (nA)	8
Rating	Catalog
Operating temperature range (°C)	-40 to 125