TPS2421-1DDAR

Hot Swap Controllers Overview

The TPS2421-1DDAR is a single-channel hot swap voltage controller from Texas Instruments, designed for general-purpose power distribution applications. It operates within a supply voltage range of 3 V to 20 V and supports an output current up to 6 A. The device integrates an internal switch and features programmable current limiting and fault timeout capabilities. Key protection mechanisms include latch-up fault response, thermal limiting, and under-voltage lockout (UVLO). It is housed in an 8-SO-PowerPad package with a PowerSOIC footprint, suitable for surface mount installation across an operating temperature range of -40°C to +125°C.

Hot Swap Controllers Feature Summary

• Integrates a high-side power switch with programmable current limiting and fault timeout controls
• Provides comprehensive protection via latch-up fault handling, thermal limiting, and under-voltage lockout
• Supports operation within a wide input voltage range of 3 V to 20 V

Hot Swap Controllers Applications

• General-purpose hot swap power distribution systems
• Server and storage backplane power management
• Industrial equipment requiring controlled power insertion

Hot Swap Controllers Procurement Notes

Verify the specific suffix DDAR corresponds to the tape-and-reel packaging configuration required for your assembly line. Confirm that the 8-SO-PowerPad thermal pad requirements align with your PCB layout guidelines. Ensure compatibility with the 3 V to 20 V supply rails intended for your application design before finalizing procurement orders.

Hot Swap Controllers Selection Notes

Select this component when a single-channel solution with integrated switching and robust fault protection is required. The TPS2421-1DDAR is appropriate for designs needing programmable current limits and thermal management without external MOSFETs. Consider the 8-SO-PowerPad package for its thermal performance and compact footprint in space-constrained power management circuits.

Hot Swap Controllers Part Context

This part belongs to the TPS2421 series of hot swap voltage controllers manufactured by Texas Instruments. The series provides integrated solutions for safe power insertion and removal in electronic systems. The TPS2421-1DDAR variant specifically offers latch-up fault behavior, distinguishing it from other variants like the TPS2421-2DDAR which may feature automatic retry modes.

Hot Swap Controllers Replacement Considerations

The TPS2421-2DDAR is a related variant within the same family, differing primarily in fault response behavior (automatic retry versus latch-up). Verify functional equivalence regarding control logic and pinout compatibility before substitution.