Datasheet Summary
Negative Voltage Hot Swap Controller
POWER MANAGEMENT Description
The SC4250 is a negative voltage hotswap controller that allows the insertion of line cards into a live backplane. The inrush current is programmable, and the closed loop operation limits the maximum current even under short circuit conditions. A built-in timing circuit prevents false shutdown. The signal from the drain voltage is fed to the timer, providing safety for the MOSFET when in linear mode. The SC4250 latches off under abnormal conditions The power has to be recycled in order to resume operation. The device es in two options, PWRGD (SC4250H) and PWRGD (SC4250L). These high or low signals can be directly used to...