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.