LTC4215IGN#PBF

Programmable Features:	Auto Retry, Current Limit, Fault Timeout, Latched Fault
Base Part Number:	LTC4215
Feature Pins:	/ALERT, FB, SOURCE, SS, TIMER
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Current - Supply:	3mA
Operating Temperature:	-40°C ~ 85°C
Current - Output (Max):	--
Voltage - Supply:	2.9 V ~ 15 V
Series:	--
Features:	I²C, OVP, UVLO
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:	Tube

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LTC4215IGN#PBF Application Field and Working Principle

Power management integrated circuit (PMIC) plays a vital role in supplying and monitoring power in many systems and components. In particular, hot swap controllers provide critical protection from unexpected load conditions. Hot swap controllers allow systems to safely swap and remove components in live environments and protect the system from any potential problems. The LTC4215IGN#PBF is a high-performance hot swap controller designed for managing the power delivery of voltage rails in hot swap applications. It is well-suited for applications such as fault isolation, sequencing, and hot-plugging of boards or components, automatic fault-signaling, hot loading of CPU and graphics cards, bus termination and fault protection, in-rush and over-current protection, and many more.

Features

The LTC4215IGN#PBF has several features which allow it to provide protection to a system. It can work in a number of modes (auto start, manual start, fault protection), as well as provide adjustable current limits and in-rush current limitation. The LTC4215IGN#PBF also provides adjustable fault and warning thresholds, adjustable delay time, power-good and fault-signaling, and fault LED indication. It is available in a small 8-lead High-Quad FlatPack (HQFP) package and has typical operating temperature range from -40°C to 85°C, allowing for operation in extreme conditions.

Working Principle

The LTC4215IGN#PBF protects the host system from an unexpected load condition. When it detects an over-current or over-temperature condition, it shuts down the power train, preventing damage and protecting the system. The LTC4215IGN#PBF draws power from two separate power rails - the VIN voltage and the VSENSE voltage. It continuously monitors the current in the power train and shuts it down if the current exceeds a pre-set limit. The VIN voltage is applied when the manual start input is enabled or when the VIN voltage rises above the start threshold. The manual start input can be enabled by the user, allowing the system to startup with no current flowing into the power train. The VSENSE voltage is monitored to detect over-temperature conditions which could cause the system to become unstable. The fault and warning signals are output to the host system, informing it of any protective action taken.

Benefits

The LTC4215IGN#PBF provides numerous benefits to a system, such as automatic fault-signaling, adjustable current limits, over-temperature protection, and LED indication. This hot swap controller allows systems to safely swap and remove components in live environments without the risk of system damage. The fact that the device is able to detect over-current and over-temperature conditions allows the system to protect itself even in extreme conditions. The adjustable current limits and in-rush current limitation help to ensure the power train is not overloaded, thus enabling a safe startup and operation of the system.

Applications

The LTC4215IGN#PBF is a high-performance hot swap controller that has a wide range of applications, including workstations, servers, control systems, networking equipment, and embedded systems. It provides power protection for components that must be consistently replaced under extreme conditions, such as CPUs and graphics cards. The device can also manage power rails in hot plugging applications. Additionally, the LTC4215IGN#PBF is also used to provide over-current and over-temperature protection to ensure that the system will not be damaged in the event of an unexpected load condition.In conclusion, the LTC4215IGN#PBF is a high-performance hot swap controller designed to provide reliable and safe power management. It features adjustable current limits, adjustable delay time, power-good and fault-signaling, and fault LED indication. The device is well-suited for applications such as fault isolation, sequencing, and hot-plugging of boards or components, automatic fault-signaling, hot loading of CPUs and graphics cards, bus termination and fault protection, in-rush and over-current protection, and many more. The LTC4215IGN#PBF is an invaluable component that can help protect any system from unexpected load conditions.

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