PI2122 Datasheet | Vicor Corporation

Description The Cool-ORing PI2122 is a plete full-function Active ORing solution with a high-speed ORing MOSFET controller and a very low on-state resistance Dual MOSFETs designed for use in redundant power system architectures. The PI2122 Cool-ORing solution is offered in an extremely small, thermally enhanced LGA package and can be used in low voltage (≤ 5Vbus) high side Active ORing applications. The PI2122 enables extremely low power loss with fast dynamic response to fault conditions, critical for high availability systems. The PI2122 provide true bi-directional switch capabilities to protect against both power source and load fault conditions. A load short circuit detection feature allows user definition of a short condition enabling minimum duty cycle into a short. The PI2122 has the added benefit of being able to protect against output load fault conditions that may induce excessive forward current and device over-temperature by turning off the back-to-back MOSFETs with an auto-retry programmable off-time. The back-to-back MOSFETs drain-to-drain voltage is monitored to detect normal forward, excessive forward, light load and reverse current flow. The status is reported via an active low .. fault flag output. A temperature sensing function turns off the MOSFETs and indicates a fault if the controller junction temperature exceeds 145°C. Features - - - - - - - - - Integrated High Performance 12A, 6mΩ back-toback MOSFET Very-small, high density fully-optimized solution providing simple PCB layout. Fast Dynamic Response, with 140ns reverse & 170ns forward over-current turn-off delay time Accurate sensing capability to indicate system fault conditions Programmable under & over-voltage functions Over temperature shutdown Programmable over-current off time Programmable short circuit load detection Active low fault flag output Applications - - - - - N+1 Redundant Power Systems Servers & High End puting High-side Active ORing High current Active ORing ( ≤ 5Vbus)...