TPS2459 Datasheet | Texas Instruments

.ti. SLUS917E - FEBRUARY 2009 - REVISED MAY 2013 12-V/3.3-V Hot Swap and ORing Controller with I2C™ and Load Current Monitor for Advanced MC™ Check for Samples: TPS2459 Features - 23 ATCA Advanced MC™ pliant - Full Power Control for an Advanced MC™ Module - Independently Programmable 12-V Current Limit and Fast Trip - 3.3-V and 12-V FET ORing Control for Micro TCA™ - 12-V Output Shuts Off If 3.3-V Output Shuts Off - Internal 3.3-V Current Limit and ORing - I2C™ Power Good and Fault Reporting - I2C™ Programmable Fault Times and Limits - FET Status Bits for 3.3-V and 12-V Channels - Load Current Monitors for 12-V and 3.3-V - 32-Pin QFN Package APPLICATIONS - ATCA Carrier Boards - Micro TCA™Power Modules - Advanced MC™ Slots - Systems Using 12-V and 3.3-V Channels - Base Stations DESCRIPTION The TPS2459 hot-plug controller performs all necessary power interface functions for an Advanced MC™ (Advanced Mezzanine Card). A fully integrated 3.3-V channel provides inrush control, over-current protection, and FET ORing. A 12-V channel provides the same functions using external FETs and sense resistors. The 3.3-V current limit is factory set to Advanced MC™ pliant levels while the 12-V current limit is programmed using external sense resistors. The accurate current sense parators of the TPS2459 satisfy the narrow ATCA™ Advanced MC™ current limit...