DESCRIPTION
A built in timing circuit prevents false shutdown. The SC4150 latches off under abnormal condition and attempts to restart after a time out period. The device comes in two options, PWRGD (SC4150H) and PWRGD (SC4150L). These signals can be directly used to enable power modules. Typical Application Circuit SC4150 Negative Voltage Hot Swap Controller FEATURES
Programmable slew of the inrush current when used for hot insertion in the negative 24V and 48V backplane Closed loop operation limits the maximum current even in short circuit condition Built in timer prevents false shutdown, when the closed loop operation limits the current. Sensing the drain voltage allows for immediate shutdown in short circuit condition, where current spikes and noise is ignored. Power good signal Input UVLO and OVLO sensing SO-8 package APPLICATIONS
Central office switching -48V Distributed power systems Power supply hotswap & inrush control GND PWRGD/PWRGD GND(remote) R1 562k R2...
Semtech Corporation
