TPS2391DGKRG4

Hot Swap Controllers Overview

The TPS2391DGKRG4 is a single-channel hot swap controller manufactured by Texas Instruments, designed for -48V applications. It operates within a supply voltage range of -80V to -36V and draws a typical supply current of 700 µA. The device is housed in an 8-VSSOP package with a wide operating temperature range from -40°C to +85°C. Key programmable features include current limiting, fault timeout, and slew rate control. It supports automatic retry and includes under-voltage lockout (UVLO) functionality.

Hot Swap Controllers Feature Summary

• Provides precise current limiting and fault timeout protection for safe insertion and removal of circuit boards.
• Features programmable slew rate control to minimize inrush current during power-up sequences.
• Includes automatic retry capability to restore power after transient faults without manual intervention.
• Integrates under-voltage lockout (UVLO) to ensure stable operation within specified voltage thresholds.

Hot Swap Controllers Applications

• -48V telecommunications infrastructure systems
• Industrial control equipment requiring hot swap capabilities
• Communication backplanes and modular server architectures

Hot Swap Controllers Procurement Notes

Verify the complete part number including the G4 suffix to confirm lead-free compliance and specific packaging configuration. Confirm the VSSOP package type matches your PCB footprint requirements. Ensure the -48V application voltage aligns with the device's -80V to -36V supply range specifications before procurement.

Hot Swap Controllers Selection Notes

Select this component when designing -48V systems requiring single-channel hot swap protection with programmable fault handling. Compare against the TPS2390 if dual-channel capability is needed. Consider the 8-VSSOP package constraints for board space. Verify that the 700 µA supply current meets system standby power budgets.

Hot Swap Controllers Part Context

This part belongs to the TPS239x family of hot swap controllers from Texas Instruments. It shares functional similarities with the TPS2390 but offers single-channel configuration. The DGKR suffix indicates tape and reel packaging, while the G4 denotes environmental compliance. It complements other PMIC solutions for robust power distribution management.

Hot Swap Controllers Replacement Considerations

The TPS2390DGKR is a dual-channel alternative within the same family. Direct pin-to-pin replacements should be verified against official TI substitution guides. Ensure any substitute maintains the -48V rating and VSSOP package compatibility.

Hot Swap Controllers FAQ

Does the TPS2391DGKRG4 contain an internal switch?

No, the TPS2391DGKRG4 is a controller only and does not include an internal switch. An external N-channel MOSFET must be used for power switching.

What is the maximum supply voltage for this device?

The device supports a supply voltage range from -80V to -36V, making it suitable for standard -48V telecom applications.