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TPS2393ATIN/a15avai-48V Hot Swap with Insertion and Removal Detection Delay
TPS2393APWTIN/a41avai-48V Hot Swap with Insertion and Removal Detection Delay
TPS2393APWG4TI/BBN/a50avai-48V Hot Swap with Insertion and Removal Detection Delay 14-TSSOP -40 to 85


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TPS2393A-TPS2393APW-TPS2393APWG4
-48V Hot Swap with Insertion and Removal Detection Delay
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SLUS610 − JULY 2004
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FEATURES
Wide Input Supply Range: −20 V to −80 V Transient Rating to −100 V Insertion/Removal Detection Delay Extended Debounce Delay Programmable Current Limit Programmable Current Slew Rate Programmable UV/OV Thresholds/Hysteresis Open-Drain Power Good (PG) Output Fault Timer to Eliminate Nuisance Trips Open-Drain Fault Output (FAULT) 14-Pin TSSOP package
APPLICATIONS
−48-V Distributed Power Systems Central Office Switching Wireless Base Station
DESCRIPTION

The TPS2393A integrated circuit is a hot swap
power manager optimized for use in nominal
−48-V systems. It operates with supply voltage
ranges from −20-V to −80-V, and is rated to
withstand spikes to −100 V. In conjunction with an
external N-channel FET and sense resistor, it can
be used to enable live insertion of plug-in cards
and modules in powered systems. It 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 and removal detection. The associated
debounce delay applies to both actions. A power
good (PG) output enables downstream
converters. The TPS2393A also provides the
basic hot swap functions of electrical isolation of
faulty cards, filtered protection against nuisance
overcurrent trips, and single-line fault reporting.
The TPS2393A periodically retries the load in the
event of a fault.
UDG−04073

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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