TPS259261DRCT

Features:	Auto Retry, OVP, Thermal Limit
Feature Pins:	EN
Supplier Device Package:	10-VSON (3x3)
Package / Case:	10-VFDFN Exposed Pad
Mounting Type:	Surface Mount
Current - Supply:	470µA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	5A
Voltage - Supply:	4.5 V ~ 13.8 V
Programmable Features:	Current Limit, Slew Rate, UVLO
Series:	--
Applications:	General Purpose
Internal Switch(s):	Yes
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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### IntroductionThe TPS259261DRCT is a Hot Swap controller from Texas Instruments. It is part of a series of Application Specific Integrated Circuits (ASICs) designed to provide power sequencing and protection for integrated systems with power requirements up to 6V. The TPS259261DRCT also offers monitoring and signaling of over-current, over-/under-voltage and brown-out conditions, as well as thermal control and tracking.### Application FieldWith its features, the TPS259261DRCT is suitable for a variety of applications. It is well-suited for powering low-voltage systems such as protection of disk drives and DC-DC converters, as well as multiple power domain integration and system-level power management. In addition, it can be used to provide power protection and performance monitoring in automotive, battery-powered and industrial systems.Additionally, the TPS259261DRCT can provide improved configurability and flexibility through its integrated Brown-out Protection and Over Temperature Protection functions. It also offers a wide Vin range up to 6V. This makes it suitable for hotswapping applications, as well as for integration with a wide variety of power system designs.### Working PrincipleThe TPS259261DRCT provides a Hot Swap controller for applications that need to monitor, sequence and control power supply. In basic operating mode, the Hot Swap controller works by an external high-side switch, supplying a regulated power supply from an external power source. It includes an integrated Over-Voltage Protection, Under-Voltage Protection, Over-Current Protection, Thermal Protection, and Brown-out Protection circuits.The Hot Swap controller works by monitoring the status of the external switch, as sensed through an internal voltage divider. It then controls the external switch accordingly to maintain a safe range of voltage and current for the system being powered. When over- or under-voltage, over-current, brown-out, or thermal conditions occur, the Hot Swap controller will act to shut down or disconnect the external switch.In addition, the TPS259261DRCT includes a built-in auto-restart feature. If a fault that caused the external switch to be shut down is corrected, then the Hot Swap controller will restart the external switch automatically, restoring power to the system.### ConclusionThe TPS259261DRCT Hot Swap controller from Texas Instruments is a well-suited control solution for applications that need to monitor, sequence and control power supply. It offers many features such as over-voltage protection, under-voltage protection, over-current protection, thermal protection, and brown-out protection. The TPS259261DRCT also offers a wide Vin range up to 6V, making it suitable for use in many applications. By employing its features, system designers can take advantage of improved configurability and flexibility for their power system designs.

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