TPS2491DGSG4

Hot Swap Controllers Overview

The TPS2491DGSG4 is a single-channel hot-swap voltage controller manufactured by Texas Instruments. It operates within a supply voltage range of 9 V to 80 V and features programmable current limiting, fault timeout, and under-voltage lockout (UVLO). The device utilizes a 10-VSSOP surface-mount package and supports an operating temperature range from -40°C to +85°C. Key functional characteristics include automatic retry capabilities following fault conditions and a typical supply current of 1 mA.

Hot Swap Controllers Feature Summary

• Supports automatic retry functionality for transient fault recovery without manual intervention
• Provides programmable current limiting and fault timeout protection for load management
• Integrates under-voltage lockout (UVLO) with hysteresis for stable startup sequencing

Hot Swap Controllers Applications

• General-purpose power distribution systems requiring controlled insertion
• Telecommunications infrastructure equipment power modules
• Industrial control systems with high-voltage input requirements

Hot Swap Controllers Procurement Notes

Verify the suffix G4 indicates RoHS compliance and green material status as per Texas Instruments specifications. Confirm the 10-VSSOP package dimensions match the design footprint. Ensure the automatic retry feature aligns with system availability requirements, distinguishing it from latch-fault variants like the TPS2490 series.

Hot Swap Controllers Selection Notes

Select this component when automatic recovery from overcurrent or short-circuit events is required. Compare against the TPS2490 series if latching behavior upon fault is preferred instead of auto-retry. Verify that the 9 V to 80 V input range covers the system's maximum bus voltage and minimum operating thresholds.

Hot Swap Controllers Part Context

This part belongs to the TPS249x family of hot-swap controllers designed for high-voltage applications. It shares the same 10-pin VSSOP form factor and core protection logic as the TPS2490, differing primarily in fault handling strategy. The DGSG4 designation specifies the tape-and-reel packaging variant compliant with environmental standards.

Hot Swap Controllers Replacement Considerations

TPS2491DGS is the non-G4 equivalent with identical electrical performance but potentially different packaging or environmental certification details. TPS2490DGSG4 serves as a functional alternative if latching fault behavior is acceptable instead of automatic retry.