TPS2390 Series

-36-V to -80-V hot swap controller with latch off

Catalog

-36-V to -80-V hot swap controller with latch off

Part	Mounting Type	Type	Features	Internal Switch(s)	Current - Supply	Number of Channels	Package / Case	Package / Case [custom]	Package / Case	Programmable Features	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications
Texas Instruments TPS2390DGKR	Surface Mount	Hot Swap Controller	Latched Fault UVLO		700 µA	1	8-MSOP 8-TSSOP	0.118 in	3 mm	Current Limit Fault Timeout Slew Rate	85 °C	-40 °C	-36 V	-80 V	-48 V

Catalog

-36-V to -80-V hot swap controller with latch off

Key Features

• Wide Input Supply Range: –36 V to –80 VTransient Rating to –100 VProgrammable Current LimitProgrammable Current Slew RateEnable Input (EN)Fault Timer to Eliminate Nuisance TripsOpen-Drain Fault Output (FAULT)\Requires Few External Components8-Pin MSOP PackageAPPLICATIONS–48-V Distributed Power SystemsCentral Office SwitchingWireless Base StationWide Input Supply Range: –36 V to –80 VTransient Rating to –100 VProgrammable Current LimitProgrammable Current Slew RateEnable Input (EN)Fault Timer to Eliminate Nuisance TripsOpen-Drain Fault Output (FAULT)\Requires Few External Components8-Pin MSOP PackageAPPLICATIONS–48-V Distributed Power SystemsCentral Office SwitchingWireless Base Station

Description

The 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. The 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.