TI TPS2456ARHHR

TPS2456A is a dual, 12V, channel protection (hot-swap) and ORing controller that provides inrush current control, current limiting, overload protection, and reverse current blocking. The current sensing topology provides accurate current limiting along with independent adjustment of current limit and fast-trip thresholds. When one input is shorted, the ORing control uses a MOSFET to block reverse current. A system with tight matching of supply voltage and feedback networks can draw power from two supplies simultaneously. The MONx outputs provide an accurate analog indication of load current. The protection circuit can be used without ORing, and ORing can be used without protection. Internal connections prevent TPS2456A has reduced sensitivity to variations in input power supply slew rate.

• TPS2456A improved power supply slew rate noise immunity
• Dual 12V protection and blocking control
• Independent current limiting and fast trip
• Blocking enables multi-input ORing redundancy control
• Power good and fault output
• Analog current monitor output
• -40°C to 125°C operating temperature range
• 36-pin QFN package

• Advanced Telecommunications Computing Architecture (ATCA) carrier boards
• AdvancedMC slots
• Blade servers
• Base stations
• Configurable as 1 source, 2 loads; 2 sources, 1 load; 2 sources, 2 loads