Self-protected e-Fuse targets consumer applications

Operating over a 3.1 to 18V input voltage range and rated at 3.6A, the NIS5135 integrates an NMOS power device with a low 30mΩ RDS(ON) for reduced power loss. It also features an internal current limit that avoids the voltage drop normally incurred by an external sense resistor in the load path. An over-voltage circuit limits the output voltage without shutting the device down, while downstream components are further protected from damage or premature failure by under-voltage lockout and thermal shutdown circuits, with latching (NIS5135MN1) or auto-retry (NIS5135MN2) options. By allowing the product to recover, this e-fuse helps reduce unnecessary field returns.

Supplied in a small, low profile U-DFN3030-10 package to minimise application footprint, the NIS5135’s industry-standard pin-out allows it to drop into existing designs, providing an alternative lower-cost source for high volume production. The NIS5135 is priced at $0.39 each in 10,000 unit quantities.