TPS2390DGKR ,Simple -48V Hot Swap Controller 8-VSSOP -40 to 85ELECTRICAL CHARACTERISTICS (continued)V = −48 V with respect to RTN, V = 2.8 V, V = 0, all outputs ..
TPS2391DGKR ,Simple -48V Hot Swap Controller 8-VSSOP -40 to 85ELECTRICAL CHARACTERISTICS (continued)V = −48 V with respect to RTN, V = 2.8 V, V = 0, all outputs ..
TPS2392PW ,Full Featured -48V Hot Swap Power Manager, Industrial Temp.FEATURES DESCRIPTION Wide Input Supply Range: −20 V to −80 VThe TPS2392 and TPS2393 integrated ci ..
TPS2392PWR , FULL-FEATURED -48-V HOT SWAP POWER MANAGER
TPS2393 ,Full Featured -48V Hot Swap Power Manager, Industrial Temp.FEATURES DESCRIPTION Wide Input Supply Range: −20 V to −80 VThe TPS2392 and TPS2393 integrated ci ..
TPS2393A ,-48V Hot Swap with Insertion and Removal Detection DelayFEATURES DESCRIPTION Wide Input Supply Range: −20 V to −80 V The TPS2393A integrated circuit is a ..
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TPS2390DGKR
Simple -48V Hot Swap Controller
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SLUS471D − JUNE 2002 − REVISED JANUARY 2008
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FEATURES Wide Input Supply Range: −36 V to −80 V Transient Rating to −100 V Programmable Current Limit Programmable Current Slew Rate Enable Input (EN) Fault Timer to Eliminate Nuisance Trips Open-Drain Fault Output (FAULT) Requires Few External Components 8-Pin MSOP Package⋅APPLICATIONS
−48-V Distributed Power Systems Central Office Switching Wireless Base Station
DESCRIPTIONThe TPS2390 and TPS2391 integrated circuits
are hot swap power managers optimized for use
in nominal −48-V systems. They are designed for
supply voltage ranges up 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. Both
devices provide load current slew rate and peak
magnitude limiting, easily programmed by sense
resistor value and a single-external capacitor.
They also provide single-line fault reporting,
electrical isolation of faulty cards, and protection
against nuisance overcurrent trips. The TPS2390
latches off in response to current faults, while the
TPS2391 periodically retries the load in the event
of a fault.
APPLICATION DIAGRAMUDG−02085
DGK PACKAGE
(TOP VIEW)
FAULT
FLTTIME
IRAMP
RTN
GATE
ISENS
−VIN−48V_IN
−48V_RTN
IRF530
VOUT+
VOUT−
0.02 Ω
1/4 W 1%
