FEATURES
D Wide Input Supply Range: −36 V to −80 V D Transient Rating to −100 V D Programmable Current Limit D Programmable Current Slew Rate D Enable Input (EN) D Fault Timer to Eliminate Nuisance Trips D Open-Drain Fault Output (FAULT) D Requires Few External Components D 8-Pin MSOP Package ⋅APPLICATIONS
D −48-V Distributed Power Systems D Central Office Switching D Wireless Base Station DESCRIPTION
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. 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 DIAGRAM −48V_RTN R3 10 kΩ 1W D2 R2 100 kΩ TPS2390/1 1 FAULT RTN 8 2 EN GATE 7 −48V_IN C1 0.1 µF 3 FLTTIME ISENSE 6 4 IRAMP −VIN 5 C2 3900 pF VOUT+ + DC/DC + C3 CO...
Texas Instruments
