LTC4219IDHC-12#TRPBF

Programmable Features:	Current Limit, Fault Timeout
Base Part Number:	LTC4219
Feature Pins:	/EN1, /EN2, FB, /FLT, IMON, ISET, /PG, TIMER
Supplier Device Package:	16-DFN (5x3)
Package / Case:	16-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Current - Supply:	1.6mA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	5.6A
Voltage - Supply:	2.9 V ~ 15 V
Series:	--
Features:	Thermal Limit, UVLO
Applications:	General Purpose
Internal Switch(s):	Yes
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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PMIC - Hot Swap Controllers - LTC4219IDHC-12#TRPBFLTC4219IDHC-12#TRPBF is part of the PMIC (Power Management Integrated Circuits) family. A PMIC is an integrated circuit which is designed to help manage power in a system by supplying appropriate voltages to the components connected to it and by providing protection features. The LTC4219IDHC-12#TRPBF is a hot-swap controller, which is a special type of PMIC which provides protection and control when connecting devices to an AC power source. The LTC4219IDHC-12#TRPBF is a highly-integrated hot-swap controller which provides a greater level of protection and control than traditional hot-swap controllers. It features integrated voltage, current and temperature sensing, over-temperature and over-current protection, dual-mode protection (manual and autonomic protection), and on-board power switch control for AC and DC applications. The LTC4219IDHC-12#TRPBF application field includes portable consumer electronics and telecom applications, including laptop adaptors, hubs and routers, and other consumer electronics with multiple power ports. In a laptop adaptor application, the LTC4219IDHC-12#TRPBF will monitor the input current to prevent overload, and will take appropriate action if the current is too high. It will also protect the system from reverse-voltage and high-voltage inputs. The LTC4219IDHC-12#TRPBF\'s working principle is based on its integrated linear current, voltage and temperature sensing system. This system can detect high current, voltage, and temperature variations and then adjust the on-board power switch accordingly to protect the system from damage.The LTC4219IDHC-12#TRPBF integrates two configurable high-side current-sense amplifiers that are used to sense input and output currents. The sensed current is sensed with a 0.1% accuracy and is adjustable for each amplifier. Internal comparators and shutdown logic are also used to protect the system from thermal overstress, over-current, and over-voltage states. The LTC4219IDHC-12#TRPBF can be configured to either operate in manual or autonomic mode. In the manual mode, it will shut down the power switch if the sensed current exceeds a user-programmable current threshold. In the autonomic mode, the LTC4219IDHC-12#TRPBF will automatically adjust the current limit to maintain a balanced power to the load. For both modes, the users are able to select the threshold limit of the current and voltage so as to optimize the system performance. The LTC4219IDHC-12#TRPBF also provides fault protection. It will protect the system from suffering damage due to faulty power sources, excessive power consumption, or short circuit conditions. The LTC4219IDHC-12#TRPBF also monitors the temperature of the system and will shut down the power switch if the temperature exceeds a pre-determined safe level.In summary, the LTC4219IDHC-12#TRPBF is a hot-swap controller that provides a greater level of protection and control for AC and DC applications, in particular for laptop adaptors, hubs and routers, and other consumer electronics with multiple power ports. It monitors and controls input and output current and voltage, and provides protection from thermal overstress, over-current and over-voltage conditions. It can operate in both manual and autonomic mode and can be programmed with user-defined safety thresholds to optimize system performance and minimize the risk of damage.

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