ISL61852FIRZ

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ISL61852FIRZ is a hot swap controller that enables smooth insertion and removal of live card components. It is an ideal device for hot swapping systems that use power management integrated circuit (PMIC) technology. This device provides an open-drain enable pin, which automatically shuts down power when the voltage on the hot swap input exceeds a certain threshold. It also provides a fault detect pin to monitor overcurrent conditions, and a power good pin that can be configured to indicate when the output voltage has reached a specified level. The device also offers a unique OVLO (Over Voltage Lock-Out) pin that can be used to detect over-voltage conditions, and a wide selection of active and disabled logic functions for powering on, powering off, and monitoring the hot swap input voltage.

The ISL61852FIRZ is suited for a variety of applications that require protection during hot swapping and simultaneous operation of multiple downstream devices. It is ideal for systems where multiple cards must be synchronized, as well as hot-swappable power supplies, servers, storage controllers, and other accessories.

The device’s working principle is simple. It contains an over-voltage, over-current and power-good monitoring circuit. When enabled, the hot swap controller continuously monitors the input voltage to detect any over-voltage conditions. If an over-voltage is detected, the controller will automatically turn off power to the downstream systems until the voltage returns to normal. The device also enables users to configure the power-good and fault detect pins to indicate when the voltage at the hot swap input has reached the desired level. Additionally, the controller includes a unique OVLO pin which can be used to detect over-voltage conditions.

The ISL61852FIRZ features a selectable control function that allows the user to control the output voltage from low to high, or from high to low. This feature is useful for systems that require varying power levels for specific tasks or applications. The device is also capable of identifying and reporting faults when an over-current or over-voltage condition is detected.

In summary, ISL61852FIRZ is a cost-effective solution for hot swap applications, providing robust over-voltage, over-current and power-good monitoring functions. Additionally, the device offers a wide selection of active and disabled logic functions to allow for flexible control of the output voltage, and to detect and report faults when necessary. This makes ISL61852FIRZ a reliable and versatile hot swap controller for a variety of power-management applications.

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