TPS2491DGSR

Hot Swap Controllers Overview

The TPS2491DGSR is a single-channel hot swap controller manufactured by Texas Instruments, designed for general-purpose power distribution applications. It operates within a supply voltage range of 9V to 80V and features a 10-VSSOP surface-mount package. The device supports programmable current limiting, fault timeout, and under-voltage lockout (UVLO). Key functional characteristics include automatic retry capabilities following fault conditions and a low supply current of 1 mA. It functions without an internal switch, requiring an external MOSFET, and is rated for operation between -40°C and 85°C.

Hot Swap Controllers Feature Summary

• Supports automatic retry functionality to restore power after transient fault events occur.
• Provides programmable control over current limiting thresholds and fault timeout durations.
• Integrates under-voltage lockout (UVLO) mechanisms to ensure stable startup and operation.

Hot Swap Controllers Applications

• General-purpose power distribution systems
• Hot swap circuit designs requiring external MOSFETs
• Equipment needing automatic recovery from fault conditions

Hot Swap Controllers Procurement Notes

Verify the specific suffix 'DGSR' corresponds to the tape-and-reel packaging configuration when ordering. Confirm that the component meets RoHS3 compliance standards as indicated in official documentation. Ensure the selected variant aligns with the required 10-VSSOP package dimensions and thermal performance specifications for the intended application environment.

Hot Swap Controllers Selection Notes

Select this component when automatic retry behavior is required after fault clearance, distinguishing it from latch-off variants like the TPS2490. Consider the 9V to 80V input range and the necessity for an external N-channel MOSFET for high-side switching. Evaluate the 10-VSSOP package constraints against available board space and thermal dissipation requirements for the target design.

Hot Swap Controllers Part Context

This part belongs to the TPS249x family of hot swap controllers from Texas Instruments. While sharing core protection features with siblings like the TPS2490, the TPS2491 series specifically incorporates automatic retry logic. This differentiation allows designers to choose between latching faults or attempting automatic restoration based on system reliability requirements.

Hot Swap Controllers Replacement Considerations

The TPS2490DGS serves as a functional alternative but lacks automatic retry, utilizing latch-off instead. Verify if the absence of auto-retry impacts system availability requirements before substituting.