ISL61861AIBZ-T

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The ISL61861AIBZ-T is a hot swap controller from Intersil Corporation that enables safe startup, operation, and power down of a system with load voltage up to 20V. This PMIC – Hot Swap Controller provides circuit protection and enables safe insertion and removal of hot pluggable loads into the system. It incorporates an adjustable power-up and power-down ramp rate to limit inrush current. This device includes an adjustable current limit and thermal protection to guard against overload. Additionally, it has output voltage sequencing that enables multiple output voltages to be powered up and down in a controlled sequence. It also contains a power good indicator that indicates when an output voltage is within regulation.

The ISL61861AIBZ-T is designed for use in a variety of applications including computer mainboards, telecommunications systems, hard disk drives and server systems. It is used to protect the system from voltage and current overloads. It features soft-start capability and current-limit protection for cleaner power-up and inrush current control to prevent false triggering of the power supply. It can also be used to sequentially power up multiple voltage rails to prevent overloading of the power supply. Additionally, it can be used in high-current power distribution applications to maximize system efficiency and reduce power losses.

The primary feature of this device is the ability to control and protect the power supply from over-current and under-voltage conditions. This is achieved by using a linear current limit feature, which limits the maximum output current supplied to the load. Additionally, there is also an adjustable current limit that protects against shorts and over-current conditions. The device also features output voltage sequencing which allows for the orderly power up or down of multiple output voltages. Furthermore, it also monitors the status of the power supply, and provides a power good signal when the output voltage is within the specified range.

The ISL61861AIBZ-T contains an enable/disable pin that allows the system designer to control the power sequence. It can be controlled by an external signal to enable or disable the power up and power down sequence. Additionally, it has two selectable frequencies: low-frequency/high-frequency, which allows the designer to optimize power up/down rates to better meet the application requirements.

This device also provides thermal protection to protect against over-temperature conditions. It has a built-in thermal monitor which can reduce output current or shut down the output to prevent any damage due to thermal overload. Additionally, it also has an over-voltage protection (OVP) feature which will shut down the output in the event of an over-voltage condition.

In summary, the ISL61861AIBZ-T from Intersil Corporation is a PMIC – Hot Swap Controller designed for providing safe operation, shutdown, and power up of high voltage applications. It provides circuit protection with adjustable current and voltage limits, and provides output voltage sequencing for powering multiple rails. Additionally, it also features thermal protection and over-voltage protection for extra protection and can be enabled or disabled to provide dynamic control over the power supply sequences.

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