TPS2490DGSR

Hot Swap Controllers Overview

The TPS2490DGSR is a Texas Instruments hot-swap voltage controller designed for positive high-voltage power-limiting applications. It operates within a supply voltage range of 9 V to 80 V and features a single channel with programmable current limiting, fault timeout, and under-voltage lockout (UVLO). The device supports automatic retry functionality upon fault clearance and includes power-fail detection capabilities. Packaged in a 10-VSSOP surface-mount format, it functions reliably across an industrial temperature range of -40°C to +85°C while consuming only 1 mA of operating supply current.

Hot Swap Controllers Feature Summary

• Supports automatic retry mode for transient fault recovery without manual intervention
• Provides programmable current limiting and fault timeout protection for load safety
• Integrates power-fail detection to monitor input voltage integrity
• Features under-voltage lockout (UVLO) with hysteresis for stable startup

Hot Swap Controllers Applications

• General-purpose hot-swap circuit protection
• High-voltage power distribution systems
• Industrial equipment requiring controlled power insertion

Hot Swap Controllers Procurement Notes

Verify the 'R' suffix indicates tape-and-reel packaging distinct from the tube-packaged TPS2490DGS. Confirm RoHS compliance status and moisture sensitivity level (MSL 2) requirements for your assembly process. Ensure the 10-VSSOP footprint matches your PCB design constraints. Cross-reference the specific datasheet revision for any pinout or electrical parameter updates before finalizing procurement.

Hot Swap Controllers Selection Notes

Select this component when automatic retry behavior is required after fault conditions, distinguishing it from the latchable TPS2490DGS variant. Ensure the 9 V to 80 V input range aligns with your system bus voltage. Verify that the external MOSFET selection complements the controller's gate drive capabilities. Consider the 10-VSSOP package size if board space is limited compared to larger packages.

Hot Swap Controllers Part Context

This part belongs to the TPS2490/TPS2491 family of hot-swap controllers from Texas Instruments. While the TPS2490DGS offers latchable fault protection, the TPS2490DGSR provides automatic retry functionality. Both share similar electrical characteristics but differ in fault handling logic. The DGSR suffix specifically denotes the reel packaging format suitable for automated surface-mount assembly lines.

Hot Swap Controllers Replacement Considerations

• TPS2490DGS: Identical electrical function but uses latchable fault protection instead of automatic retry; requires tube packaging.

Hot Swap Controllers FAQ

What is the difference between TPS2490DGS and TPS2490DGSR?

The primary difference is the fault handling mode and packaging. The TPS2490DGSR supports automatic retry and comes in tape-and-reel packaging, whereas the TPS2490DGS uses latchable fault protection and is packaged in tubes.

Does the TPS2490DGSR include an internal switch?

No, the TPS2490DGSR is a controller that requires an external N-channel MOSFET to handle the load current.