TPS2392

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to −VIN (unless otherwise noted).
(3) With 100-k minimum input series resistance.
(4) With 10-k minimum series resistance.

The TPS2392 and TPS2393 integrated circuits are hot swap power managers optimized for use in nominal −48-V systems. They operate with supply voltage ranges from −20-V to −80-V, and are rated to withstand spikes to −100 V. In conjunction with an external N-channel FET and sense resistor, they can be used to enable live insertion of plug-in cards and modules in powered systems. Each device provides load current slew rate control and peak magnitude limiting.Undervoltage and overvoltage shutdown thresholds are easily programmed via a three-resistor divider network. In addition, two active-low, debounced inputs provide plug-in insertion detection. A power good (PG) output enables downstream converters. The TPS2392 and TPS2393 also provide the basic hot swap functions of electrical isolation of faulty cards, filtered protection against nuisance overcurrent trips, and single-line fault reporting. The 44-pin part supports designs where telecomm creepage and clearance requirements must be followed.

In the TPS2392 and TPS2393 series, the TPS2392 latches off in response to current faults,while the TPS2393 periodically retries the load in the event of a fault.