ON Semiconductor Offers NIS5102 Hot-Swap Protection IC
ON Semiconductor Corp. (Phoenix, AZ), a supplier of power management solutions, expanded its SMART HotPlug family with the release of the NIS5102 high-side, hot-swap protection IC with built-in charge pump and accurate temperature sensing circuitry. Designed for computing and telecom applications, it combines a power MOSFET with control circuitry and thermal protection. The integrated approach simplifies implementation of vital hot-swap protection in high-availability 12 V systems and is suitable for use in distributed power systems, servers, disk arrays and powered board-insertion applications.
The new chip offers an integrated solution for limiting inrush current generated when plugging electronic equipment into a running or "hot" system without causing interruption or damage to the system or the electronic equipment. Specifically, it is designed to allow safe insertion and removal of electronic equipment into 12 V backplanes. The NIS5102 is available with a low 10 mΩ, 18 V rated integrated smart MOSFET. An adjustable current limiting feature enables the maximum inrush current to be set from 20 A to <1 A.
The NIS5102QP1HT1G (latch) and NIS5102QP2HT1G (auto-retry) are available in a 12-pin DFN, lead-free package that measures 9 mm x 9 mm. The devices are priced at $2.38 per unit in 2,000-piece quantities. The company plans to launch three additional SMART HotPlug devices by the end of 2005.
