TPS2456RHHR

Hot Swap Controllers Overview

The TPS2456RHHR is a dual-channel hot swap and ORing controller designed for 12 V systems. It integrates inrush current control, current limiting, and overload protection within a single package. The device operates with an input voltage range of 8.5 V to 36 V and features a low quiescent current of 3.1 mA. Packaged in a 36-pin VFQFN (6x6 mm) exposed pad, it supports surface mount installation. Key functional parameters include adjustable slew rates and fault timeouts, enabling precise power sequencing and robust protection against short circuits and overloads in dual-rail or redundant power architectures.

Hot Swap Controllers Feature Summary

• Dual-channel architecture providing independent hot swap and ORing control functions
• Integrated inrush current limiting and programmable slew rate management
• Built-in overload protection with configurable fault timeout mechanisms
• Low quiescent current operation suitable for energy-efficient designs

Hot Swap Controllers Applications

• Dual-rail power distribution units requiring sequential power-up
• Redundant power supply systems utilizing ORing logic
• Telecommunications equipment power modules
• Industrial control system power interfaces

Hot Swap Controllers Procurement Notes

Verify the specific suffix RHHR confirms the tape and reel packaging format and commercial temperature grade. Confirm the 36-VFQFN pinout matches your PCB footprint design. Ensure compatibility with your system's 12 V nominal rail and maximum input voltage limits before integration.

Hot Swap Controllers Selection Notes

Select this component when dual-channel isolation between hot swap and ORing functions is required. It is appropriate for applications needing precise inrush control without external discrete components. Consider the 36-pin package size constraints and thermal dissipation requirements associated with the exposed pad design.

Hot Swap Controllers Part Context

This part belongs to Texas Instruments' TPS245x family of protection controllers. It complements other variants by offering dual-channel capability in a compact form factor. The series addresses common power management challenges in multi-rail systems, providing a standardized solution for board-level power protection and sequencing.

Hot Swap Controllers Replacement Considerations

Check datasheet pinouts and electrical specifications carefully when substituting. Verify that alternative devices support both hot swap and ORing modes simultaneously. Ensure package dimensions match the existing PCB layout to avoid mechanical interference.