MCP18480

www.DataSheet4U.com M Features Allows safe board removal and insertion from a live backplane Accurate (<1.5%) internal voltage reference for fault detection and precision timing Programmable foldback current limiting Programmable circuit breaker current limiting Auto restart option for all faults Adjustable Undervoltage lockout thresholds Adjustable Overvoltage protection threshold Adjustable Power Good delay Configurable Power Good output polarity Low-side drive of an external N-channel FET MCP18480 -48V Hot Swap Controller Description The MCP18480 is a Hot Swap controller that allows boards to be safely removed or inserted from an active backplane using -48V. When PCBs are inserted into a live backplane, highpeak or transient currents from the source are generated due to the charging of the bypass capacitors on the supply. The high transient currents can destroy connectors and capacitors. The high inrush current can pull the input voltage BUS down and reset the system. The MCP18480 solves this problem by controlling the slew rate of the backplane voltage to the board so that these transients are eliminated. This allows boards to be removed and inserted without causing damage to connector pins and input bulk capacitors, in addition to preventing false resets to the other boards on the backplane. The MCP18480 can be used in applications in several areas including: Telecom Line Cards Network Switches Network Routers and Servers Base Statio...