ISL61853IIRZ-T

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PMIC - Hot Swap Controllers are designed to protect valuable equipment from faulty power supplies, while providing reliable power delivery. The ISL61853IIRZ-T Hot Swap Controller is a versatile and robust power delivery solution, providing features such as over current protection, over temperature protection, soft start and low power consumption. ISL61853IIRZ-T is suitable for a wide range of applications, and is capable of delivering up to 14A of continuous load current.

Introduction

The ISL61853IIRZ-T is an adjustable, 3.3V and 5V Hot Swap Controller from Intersil\'s family of ISL618xx Hot Swap Controllers. It has been specifically designed to protect the integrity and safety of valuable electronic components, while offering programmable safety thresholds, adaptive control techniques and high current drive capabilities. ISL61853IIRZ-T integrates a Pre-Charge circuitry, load disconnect circuitry and over temperature protection, making it suitable for many demanding applications.

Applications

The Hot Swap Controller is designed to be used in systems that require the protection of sensitive electronic components, such as in computers, server racks, industrial and automotive systems, medical systems & diagnostics, instrumentation and portable equipment. ISL61853IIRZ-T can also be used to monitor and control multiple hot swap power buses, ensuring system availability and reliability.

Working Principle

ISL61853IIRZ-T features a built-in high-side MOSFET driver, allowing for a wide range of applications. The controller regulates the output current and adjusts the MOSFET gate voltage based on the sensed load current, maintaining the device\'s capability of delivering up to 14A of continuous current. Additionally, when enabled, the built-in soft start function limits the inrush current to a protected system.

ISL61853IIRZ-T additionally monitors the current draw on an external MOSFET, providing over current protection. This will detect any excessive current draw, immediately turning off the MOSFET and protecting the system against damage. Additionally, ISL61853IIRZ-T features monitoring of the power bus voltage, allowing for over voltage protection which will shut down the MOSFET in the event that it exceeds a specified threshold. This is especially useful when power is suddenly removed from the system, as the controller will detect the change and shut off the MOSFET to prevent damage.

ISL61853IIRZ-T additionally provides over temperature protection, which will shut off the MOSFET in the event that the temperature of the system exceeds a certain threshold. This is useful in preventing any potentially dangerous situations, such as the system overheating, which could potentially damage components or cause a fire.

The Intersil ISL61853IIRZ-T is an extremely versatile Hot Swap Controller, offering a wide range of features, including adjustable current monitoring, over current and over temperature protection, as well as an soft start function. This makes it suitable for use in a wide range of applications, providing a safe and reliable power delivery solution.

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