LTC4221CGN#PBF

Programmable Features:	Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, Latched Fault
Base Part Number:	LTC4221
Feature Pins:	/FAULT, FILTER, FB1, FB2, ON1, ON2, PWRGD1, PWRGD2, TIMER
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Current - Supply:	2.2mA
Operating Temperature:	0°C ~ 70°C
Current - Output (Max):	--
Voltage - Supply:	1 V ~ 13.5 V
Series:	--
Features:	OVP, UVLO
Applications:	General Purpose
Internal Switch(s):	No
Number of Channels:	2
Type:	Hot Swap Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Hot Swap Controllers are often employed in telecom and computing applications, where sudden surges in power may damage sensitive components. The LTC4221CGN#PBF is one such device. It is a Hot Swap Controller that helps safely power up and control circuit boards in extreme loads. The device provides a robust supply of power to the circuit board, while providing a reliable current limit to protect it during high-load conditions. It also regulates the output voltage and current to ensure safe and stable operation, while also providing short-circuit protection. The LTC4221CGN#PBF is specifically designed for high-power telecom and computing applications, where it can tolerate severe overload conditions for extended periods. Its primary features include overvoltage, overcurrent, and overtemperature protection, and a wide range of input and output voltages. The device\'s working principle is relatively simple. It is composed of four main components: an on-chip MOSFET, a sense resistor, a voltage regulator, and a voltage detection circuit. The MOSFET controls the power supply to the circuit board while the sense resistor current-senses the output current. The voltage regulator generates a regulated output voltage that is derived from the input voltage, while the voltage detection circuit detects an overvoltage condition and limits the output voltage accordingly. The device\'s on-chip MOSFET also provides an effective means of controlling the board\'s power supply during sudden load surges. This is done by providing a "soft start" at power on, and preventing large inrush currents that may cause damage to sensitive components. It also features overcurrent protection and a constant current limit. The device\'s overvoltage and overtemperature protection features protect the circuit board from overvoltage and overtemperature conditions. Additionally, it features an adjustable LDO output voltage, with a wide output voltage range, as well as an adjustable current limit. This ensures that the LTC4221CGN#PBF can be used in a variety of applications, ranging from 1.2V to 6.0V. The LTC4221CGN#PBF Hot Swap Controller is a robust, reliable and versatile device that offers excellent protection and performance in extreme high load conditions in telecom and computing applications. It is a solid solution for protecting sensitive components, while supplying a stable and reliable power supply to the circuit board.

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