UCC2921DTR

$4.03

Description：IC HOT SWAP CTRLR GP 8SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk

SKU:39f013866d52 Category: Hot Swap Controllers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC HOT SWAP CTRLR GP 8SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk
Type：Hot Swap Controller
Number of Channels：1
Internal Switch(s)：No
Applications：General Purpose
Features：UVLO
Programmable Features：Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, Latched Fault
Voltage - Supply：-48V
Current - Output (Max)：-
Operating Temperature：-40°C ~ 85°C
Current - Supply：1 mA
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

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UCC2921DTR

Overview

The UCC2921DTR is a single-channel hot swap voltage controller manufactured by Texas Instruments, designed for negative floating applications. It operates within a supply voltage range of 8.5 V to 10.5 V and draws a typical operating current of 2 mA. The device supports adjustable current limiting and functions reliably across an industrial temperature range from -40°C to +85°C. Packaged in an SOIC-8 surface-mount format, it integrates latchback protection and fault timeout features to manage power insertion safely.

Feature Summary

Integrates adjustable current limiting with latchback negative floating protection
Includes programmable fault timeout and automatic retry capabilities
Features undervoltage lockout (UVLO) for stable startup sequencing

Applications

Telecommunications equipment requiring -48V hot swap insertion
Industrial control systems with negative rail power distribution
Server backplanes supporting hot-pluggable module replacement

Procurement Notes

Verify the specific suffix 'DTR' confirms tape-and-reel packaging rather than tube packaging when ordering. Confirm the component meets RoHS compliance requirements for your region. Ensure the negative floating configuration aligns with your system's ground reference. Check moisture sensitivity levels for proper storage and reflow soldering profiles.

Selection Notes

Select this controller for single-channel negative voltage hot swap applications requiring adjustable current limits. Compare against the UCC2913 series if positive voltage support or different pinouts are needed. Verify that the SOIC-8 package fits your PCB footprint constraints. Ensure the 2 mA quiescent current meets your standby power budget requirements.

Part Context

This component belongs to the UCC2921 family of hot swap controllers from Texas Instruments. It serves as a specialized power management IC for protecting circuits during live insertion. The device complements other PMIC solutions by handling transient currents and fault conditions without external switches.