LTC4260ISW#TRPBF

Programmable Features:	Auto Retry, Current Limit, Fault Timeout, Latched Fault, OVP, Slew Rate, UVLO
Base Part Number:	LTC4260
Feature Pins:	ADIN, /ALERT, /BD_PRST, FB, GPIO, INTVCC, ON, SOURCE, TIMER, UV
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Current - Supply:	2mA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	--
Voltage - Supply:	8.5 V ~ 80 V
Series:	--
Features:	I²C
Applications:	General Purpose
Internal Switch(s):	No
Number of Channels:	1
Type:	Hot Swap Controller, Monitor
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Overview of LTC4260ISW#TRPBF

The LTC4260ISW#TRPBF is a low-side Hot Swap controller used to monitor current and voltage for fault protection systems. It is suitable for use in applications such as high-reliability industrial and telecommunications systems. It is designed to protect power components from catastrophic failure due to over-voltage or over-current conditions. The Hot Swap controller is designed to be used with either an output current or voltage detector. It also incorporates a low on-resistance MOSFET which can be used to disconnect an output during latching fault conditions.The LTC4260ISW#TRPBF is an integrated PMIC (Power Management IC) that combines programmable under-voltage and over-voltage protection with an integrated MOSFET and current sense circuit to provide Hot-Swapping (HTS) capabilities to systems. It provides a reliable method of current and voltage monitoring and fault protection, while minimizing the need for external passive components.

Applications of The LTC4260ISW#TRPBF

The LTC4260ISW#TRPBF is widely used in server farms, telecom systems, and most high-reliability industrial applications. The Hot Swap controller provides efficient system protection by sensing and disconnecting an embedded device or module that is overloaded, preventing components from burning due to overcurrent conditions. Additionally, the LTC4260ISW#TRPBF can be used for remote power control, allowing for system-wide power management with a single-IC solution.The LTC4260ISW#TRPBF is suitable for use in a range of applications such as:- Server farms- Industrial automation systems- Medical equipment- Telecom systems- Mobile phone chargers- Automotive applications- High-reliability industrial and military applications- Battery backup systems- High-reliability avionics systems- Automated test systems- Robotics systems

Working Principle of The LTC4260ISW#TRPBF

The LTC4260ISW#TRPBF Hot Swap controller integrates MOSFET transistors, analog Comparators and a Voltage Detector to provide the capability of disconnecting system components to prevent the board from being subjected to abnormal voltage or current conditions.The controller monitors the differences between two voltage levels (12.1V and 15V) provided by the voltage generator using a hysteresis effect. When the voltage level drops below 12.1V, the low-side gate driver will turn OFF the MOSFET, isolating the system from further damage. When the voltage rises above 15V, the gate driver will turn back to its ON state.The LTC4260ISW#TRPBF is able to detect and respond to faults quickly, and can be programmed to set a wide range of overcurrent, overvoltage, and undervoltage limits. It can detect faults that are due to a high-current short, as it will immediately shutdown the power supply circuit and prevent a current surge through the system.In addition to protection of system components from over-voltage and current faults, the controller can also be used to control power-on sequencing and fault handling. It can automatically monitor the system’s auxiliary current flow, allowing for closely-monitored power management and system optimization.

Conclusion

The LTC4260ISW#TRPBF Hot Swap controller is an ideal solution for powering and protecting components in high-reliability industrial, telecom and mobile systems. The controller provides robust fault protection while minimizing the need for external components, providing an accelerated time to market, and reducing the number of components required. The LTC4260ISW#TRPBF features an integrated MOSFET driver, and programmable on- resistance and voltage limits, allowing for system optimization. The controller is suitable for a wide range of applications and provides an efficient and reliable solution for power management.

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