14-V bidirectional flat-clamp surge protection device

The TVS1401 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 TVS1401 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 TVS1401 has a ±14 V operating range to enable operation in systems

that require protection against reverse wiring conditions.

In addition, the TVS1401 is available

in a small SON footprint which is 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 TVS1401

against 5,000 repetitive surge strikes at 125°C with no shift in device

performance.

The TVS1401 is part of TI’s Flat-Clamp

family of surge devices. For a deeper look at the Flat-Clamp family, refer to

Flat-Clamp Surge Protection Technology for Efficient System

Protection

white paper.