1FEATURES
• 9-V to 80-V Operation
• High-Side Drive for External N-FET
• Programmable FET Power Limit
• Programmable Load Current Limit
• Programmable Fault Timer
• Load Current Monitor Output
• Power Good and Fault Outputs
• Enable/UV, OV Inputs
• Latch or Auto Restart After Fault
• EVM Available SLUU425
• Calculation Tool Available SLVC033

APPLICATIONS
• Server Backplanes
• Storage Area Networks (SAN)
• Medical Systems
• Plug-in Modules
• Base Stations

DESCRIPTION
The TPS2492 and TPS2493 are easy-to-use, positive high voltage, 14-pin Hotswap Controllers that safely
drive an external N-channel FET to control load
current. The programmable power foldback protection
ensures that the external FET operates inside its safe
operating area (SOA) during overload conditions by
controlling of power dissipation. The programmable
current limit and fault timer ensure the supply,
external FET, and load are not harmed by
overcurrent. Features include inrush current limiting,
controlled load turn-on, interfacing to down-stream
DC-to-DC converters, and power feed protection.
The analog current monitor output provides a signal
ready for sampling with an external A/D converter.
Additional features include programmable overvoltage
and undervoltage shutdown, power-good for
coordinating loads with inrush, and a fault indicator to
indicate an over-current shutdown.