Nexperia adds new high-current eFuse with superior current limiting accuracy to its power device portfolio

Nexperia announced the NPS3102A and NPS3102B electronic fuses (eFuses) as the latest additions to its ever-expanding power device portfolio. These low-ohmic (17 mΩ), high current (13.5 A), resettable electronic fuses help to protect downstream loads from exposure to excessive voltages while also protecting power supplies from load faults and large inrush currents. These eFuses have been designed for use in various 12V hot-swap applications including enterprise communication and storage equipment found in data centers such as solid-state and hard-disk drives, servers, ethernet switches and routers. Additionally, they can also be used to protect mobile communications infrastructure like 5G radio-heads and industrial automation equipment like programmable logic controllers (PLC).

The NPS3102A and NPS3102B eFuses have a wide input voltage range (21 V abs. max) and have an integrated low-resistance pass MOSFET which minimizes voltage drop and power loss. This feature helps to increase operating efficiency beyond that attainable from similar competing devices in the same package type. The current clamp limit can be adjusted in the 2–13.5 A range using a resistor at the ILIM pin, which can also be used to measure load current in real time. Both devices include a built-in overvoltage clamp that limits the output voltage during an input overvoltage condition, with a 2 μs short-circuit protection response time (more info).