Description
The PI2003 Cool-ORingTM solution is a universal high-speed Active ORing controller IC designed for use with N-channel MOSFETs and is optimized for - 48V redundant power system architectures. The PI2003 Cool-ORing controller enables an extremely low power loss solution with fast dynamic response to input power fault conditions, critical for high availability systems. The PI2003 controls single or parallel MOSFETs to address Active ORing applications protecting against power source failures. The PI2003 is optimized for -48V low-side Active ORing applications. An internal VC shunt regulator enables biasing of the controller directly from -48V(GND).

Features
• Optimized for -48V ORing applications
• Fast Dynamic Response to Power Source failures, with 160ns reverse current turn-off delay time
• 4A gate discharge current
• Accurate MOSFET drain-to-source voltage sensing to indicate system level fault conditions
• Low quiescent current enables biasing directly from -48V(GND).
• 100V for 100ms operation in low side applications
• Active low fault flag output

Applications
• Low-side -48Vbus Active ORing
• N+1 Redundant Power Systems
• Servers & High End Computing
• Telecom Systems
• High current Active ORing