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PI2121 Datasheet(PDF) 1 Page - Vicor Corporation |
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PI2121 Datasheet(HTML) 1 Page - Vicor Corporation |
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1 / 21 page  Picor Corporation • picorpower.com PI2121 Rev. 1.2 Page 1 of 21 PI2121 Series 8 Volt, 24 Amp Full-Function Active ORing Solution Description The PI2121 is a complete full-function Active ORing solution with a high-speed ORing MOSFET controller and a very low on-state resistance MOSFET designed for use in redundant power system architectures. The PI2121 Cool-ORing solution is offered in an extremely small, thermally enhanced 5mm x 7mm LGA package and can be used in low voltage (≤ 5Vbus) high side Active ORing applications. The PI2121 enables extremely low power loss with fast dynamic response to fault conditions, critical for high availability systems. A master/slave feature allows the paralleling of PI2121 solutions for high current Active ORing requirements. The PI2121, with its 1.5m Ω internal MOSFET provides very high efficiency and low power loss during steady state operation, while achieving high- speed turn-off of the internal MOSFET during input power source fault conditions that cause reverse current flow. The PI2121 provides an active low fault flag output to the system during excessive forward current, light load, reverse current, over- voltage, under-voltage and over-temperature fault conditions. A temperature sensing function indicates a fault if the maximum junction temperature exceeds 160 °C. The under-voltage and over-voltage thresholds are programmable via an external resistor divider. Features • Integrated High Performance 24A, 1.5m Ω MOSFET • Very-small, high density fully-optimized solution providing simple PCB layout. • Fast Dynamic Response to Power Source failures, with 160ns reverse current turn-off delay time • Accurate sensing capability to indicate system fault conditions • Programmable under & over-voltage functions • Over temperature fault detection • Adjustable reverse current blanking timer • Master/Slave I/O for paralleling • Active low fault flag output Applications • N+1 Redundant Power Systems • Servers & High End Computing • Telecom Systems • High-side Active ORing • High current Active ORing (≤ 5Vbus) Package Information • 17-pin 5mm x 7mm Thermally Enhanced LGA Package Typical Application: Figure 1: PI2121 High Side Active ORing Figure 2: PI2121 input current de-rating based on maximum TJ=150°C vs. ambient temperature END OF LIFE |
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