TPS24771RGET

Features:	Auto Retry
Feature Pins:	ENHS, FLTb, FSTP, IMON, IMONBUF, OUTH, OV, PGHS, PLIM, SENM, SET, TFLT, TINR
Supplier Device Package:	24-VQFN (4x4)
Package / Case:	24-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Current - Supply:	2.95mA
Operating Temperature:	-40°C ~ 125°C
Current - Output (Max):	--
Voltage - Supply:	2.5 V ~ 18 V
Programmable Features:	Current Limit, Fault Timeout, OVP, Slew Rate, UVLO
Series:	--
Applications:	General Purpose
Internal Switch(s):	No
Number of Channels:	1
Type:	Hot Swap Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TPS24771RGET Application Field and Working Principle

The Power Management Integration Circuit (PMIC) is an integrated circuit that helps with the regulation of power and management of the power output which is being distributed. At the core of the power management integrated circuit is a set of circuits or modules that handle different tasks to facilitate the process of power delivery. This can include load balancing, overvoltage protection, current limiting and other tasks. One such PMIC is the TPS24771RGET which is a Hot Swap Controllers and a component of the Texas Instruments family of products.The TPS24771RGET is a Hot Swap Controller with intelligent power control that consists of a current-limited power MOSFET, integrated current-sense amplifier, adjustable current limit, and programming resistor. Its smart power design simplifies protection and control circuit to ensure reliability and safety. The Hot Swap Controller limits inrush current and holds the output voltage at a preset level. It handles the situation when device suddenly needs more power than is available. This device is used in applications such as portable measurement instrument, data storage, blockchain nodes, gaming machine, and industrial equipment. This Hot Swap Controller carries a unique feature, Intelligent Fault Rejection (IFR), which is an innovative feature of the TPS24771RGET that rejects current-limit trips due to voltage transients. This occurs in applications where there is a high-voltage load is present that can cause sudden power spikes. In order to understand better how IFR works, we will take a look at its Working Principle. The TPS24771RGET Hot Swap Controllers monitor its internal MOSFET current and outlet voltage. When a device that needs more power than is available, a high in-rush current is produced. This high current is detected by the sensing block of TPS24771RGET and is converted by its current sense amplifier. A current-limit trip is then triggered by the trip comparator that is present in the IC. The IFR feature will then compare the programmed current threshold and decide to either trip or provide power. This process is automatically repeated for subsequent current-limit trips due to the same load transient. Another key feature of the Hot Swap Controllers is its loop control response where this intelligent control logic continuously monitors the load current. The current-sense comparator in the IC monitors the current flowing through the MOSFET. The response of this loop control is immediately sent to the gate driver to increase or decrease the MOSFET drive current. This increases or decreases the current limit setpoint so as to keep the current within its programmed trip threshold. The TPS24771RGET Hot Swap Controllers also features programmable current limit threshold that is adjustable through a single external resistor. The voltage output is also generated by an additional external resistor. Through the combination of both resistance and voltage control, the device can accurately detect and limit inrush current. The Hot Swap Controller provides up to 2A of continuous output current and up to 18A of output inrush current protection.In conclusion, the TPS24771RGET Hot Swap Controllers can be used in a variety of applications due to its unique features, such as the IFR and voltage control. Its intelligent power control ensures reliable and safe power delivery solution. Its current limit trip can help maintain current level and response to transient load. Furthermore, its voltage output is adjustable via an external resistor. With the Hot Swap Controller, it provides an excellent solution to the power management and distribution for applications such as portable measurement instrument, data storage, blockchain nodes, gaming machine, and industrial equipment.

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