TPS2391DGK

Hot Swap Controllers Overview

The TPS2391DGK is a hot-swap voltage controller manufactured by Texas Instruments, designed for -48V distributed power systems. It operates within a supply voltage range of -36V to -80V and withstands transients up to -100V. The device features a single channel and utilizes an 8-pin VSSOP package. It supports surface mount installation and functions reliably across an operating temperature range from -40°C to +85°C.

Hot Swap Controllers Feature Summary

• Provides automatic retry functionality following load faults to prevent nuisance tripping in critical systems
• Enables live insertion and removal of circuit cards without interrupting system power
• Offers programmable current limiting and slew rate control via external components

Hot Swap Controllers Applications

• -48V distributed power systems
• Central office switching equipment
• Wireless base stations

Hot Swap Controllers Procurement Notes

Verify the specific suffix DGK corresponds to the tube packaging configuration rather than tape-and-reel variants. Confirm the component matches the 8-VSSOP footprint requirements for your PCB layout. Ensure the design accommodates the required external N-channel FET and sense resistor for proper operation within the specified voltage limits.

Hot Swap Controllers Selection Notes

Select this controller when automatic fault recovery is required, distinguishing it from the latching TPS2390 variant. It is suitable for designs needing precise control over inrush current and peak amplitude through external programming. Verify compatibility with the target -48V infrastructure voltage profiles and transient conditions.

Hot Swap Controllers Part Context

This component belongs to the TPS239x series of hot-swap controllers optimized for telecom and industrial power architectures. It integrates protection logic that manages power delivery during board insertion events. The device relies on external power switches to handle high-current paths while providing monitoring and control signals.

Hot Swap Controllers Replacement Considerations

The TPS2390 serves as a functional alternative if latching fault behavior is preferred over automatic retry. Both devices share similar pinouts and programming methodologies but differ in post-fault response mechanisms.