TPS24741RGER

Features:	Auto Retry, UVLO
Feature Pins:	ENHS, ENOR, FLTb, FSTP, IMON, IMONBUF, OV, PGHS, PLIM, RVSNP, RVSNM, SENM, SET, STAT, TFLT, TINR
Supplier Device Package:	24-VQFN (4x4)
Package / Case:	24-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Current - Supply:	4.2mA
Operating Temperature:	-40°C ~ 125°C
Current - Output (Max):	--
Voltage - Supply:	2.5 V ~ 18 V
Programmable Features:	Current Limit, Fault Timeout, OVP, Turn On Voltage
Series:	--
Applications:	General Purpose
Internal Switch(s):	No
Number of Channels:	1
Type:	Hot Swap Controller, OR Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

The TPS24741RGER is a high-performance Hot Swap controller from Texas Instruments. The Hot Swap controllers offers sophisticated control of the turn on, turn off, and protection features for sensitive components within a larger system. The TPS24741RGER is designed to be used in applications requiring improved system safety, increased efficiency and increased power density, such as commercial and industrial power supplies and AC/DC adapters.

Application Field

TPS24741RGER Hot Swap Controllers are widely used in a wide variety of industrial, automotive, consumer and other applications. Most commonly, this type of Hot Swap controller is used in power supplies, AC/DC adapters, power over Ethernet (PoE) connections, USB type-C connections, connectors and switches. Hot Swap controllers can also be found in computer motherboards, data communication equipment, automotive systems, and other applications where inrush current protection and control are essential.

Working Principle

The TPS24741RGER Hot Swap controller provides a patent-pending solution which reduces inrush current and avoids over-voltage transients during power-on and power-off operations. This Hot Swap controller operates with a constant on-time peak current mode control to minimize over-voltage transients and minimize power dissipation during battery protection and hot swap operations.The controller limits the inrush current by employing a constant on-time during the switch-on operation. The constant on-time operation maintains a constant current ramping rate regardless of input voltage or load changes, thus preventing higher current or load-dependent ringing voltages during the switch-on transient. Additionally, the controller can be configured to limit the fault turn-on current to prevent damage to the load due to transients during fault operations.The TPS24741RGER Hot Swap Controller provides many protection features that keep the systemsafe which include the fail-safe timer that protects against approaching under-voltage and over-voltage conditions, as well as adjustable current limit and over-temperature protection. In addition to these robust protection features, the controller provides adjustable turn-on/turn-off thresholds. This feature along with the adjustable current limit allows the user to optimize the turn-on/turn-off sequence of the load without sacrificing system performance or safety.

Conclusion

In summary, the TPS24741RGER Hot Swap controller provides a sophisticated control for power supplies, AC/DC adapters, power over Ethernet (PoE) connections, USB type-C connections, connectors, and switches. It is designed to provide improved system safety, increase efficiency, and increased power density. This Hot Swap controller features a constant on-time peak current mode control which minimizes power dissipation and helps reduce inrush current. Additionally, the TPS24741RGER offers many protection features that help protect against approaching under-voltage and over-voltage conditions, as well as adjustable current limit and over-temperature protection. Its adjustable turn-on/turn-off thresholds help to optimize system performance and safety.

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