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¹¦ÄÜÃèÊö | ORing MOSFET Controller with Ultra-Fast 200ns Turn-Off ¹¦ÂÊÇý¶¯Æ÷IC |
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General Description
The MAX5079 ORing MOSFET controller replaces ORing diodes in high-reliability redundant, parallel-connected power supplies. Despite their low forward-voltage drop, ORing Schottky diodes cause excessive power dissipation at high currents. The MAX5079 allows for the use of low-on-resistance n-channel power MOSFETs to replace the Schottky diodes. This results in low power dissipation, smaller size, and elimination of heatsinks in high-power applications.
Features
? 2.75V to 13.2V Input ORing Voltage
? 1V to 13.2V Input ORing Voltage with 2.75V Aux Voltage Present
? 2A MOSFET Gate Pulldown Current During Fault Condition
? Ultra-Fast 200ns, MOSFET Turn-Off During Fault Condition
? Supply Undervoltage and Bus Overvoltage Detection
? Power-Good (PGOOD) and Overvoltage (OVP) Outputs for Fault Detection
? Space-Saving 14-Pin TSSOP Package
? -40¡ãC to +85¡ãC Operating Temperature Range
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