SMH4814 Datasheet - Summit Microelectronics

SMH4814 Dual Feed Active-ORing Programmable Hot Swap Controller

The SMH4814 integrated power controller operates within a wide supply range, typically *32 to *72 volts, and generates the signals necessary to drive isolatedoutput DC/DC converters. The device accepts two independent *48V feeds via input pins FEEDA and FEEDB. The VGATEA pin .

SMH4814 www.DataSheet4U.com Preliminary Information 1 (See Last Page) INTRODUCTION The SMH4814 is an integrated power controller designed to control the hot-swapping of plug-in cards in a distributed power environment. The SMH4814 drives external power MOSFET switches that connect the supply to the load while reducing in-rush current and providing over-current protection. When the source and drain voltages of the external MOSFETs are within specification the SMH4814 asserts the four PUP logic o.

SMH4814 Features

* AND APPLICATIONS Eliminates Passive ORing Diodes for Reduced Power Consumption High Noise Immunity on All Logic Inputs Soft Starts Main Power Supply on Card Insertion or System Power Up with Slew Rate Control Programmable Differential Current Sense Programmable Inrush Current Limiting Master Enable

SMH4814_SummitMicroelectronics.pdf