ISL61863IIRZ-T

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The ISL61863IIRZ-T PMIC Hot Swap Controller is a high-performance hot-swappable power controller that effectively manages the power requirements of programs requiring interfacing with high power supply levels. It can be used to create a direct connection between components, thereby eliminating any electrical noise as well as protecting the devices from over-current, over-voltage, and over-temperature conditions. It is designed for reliable operation even at temperatures of up to 150°C.

The ISL61863IIRZ-T has a voltage monitoring circuit that turns the circuit on and off depending on input voltage, as well as a digital programmable voltage monitor that can be used to configure the shut-off voltages. It also includes an over-voltage protection circuit to protect against the effects of high input voltages and supply rail transients. Additionally, it has integrated control functions to manage the power-up, power-down, and fault conditions. It also features slew-rate and soft-start control for reliable operation.

The ISL61863IIRZ-T provides an integrated fault protection circuit that isolates the power supply from any fault conditions, such as over-temperature, over-current, over-voltage, or failure of the power supply. It also enables a low component count design, with the circuit requiring only a single resistor for the reference voltage, reducing component count and cost.

The ISL61863IIRZ-T has a low on-resistance output stage that provides a high current capability of up to 12 A. It also has wide-ranging operating temperature capabilities of -40°C to 125°C, making it well suited for a variety of applications.

The ISL61863IIRZ-T is an ideal solution for hot-swappable designs and can be used in applications such as Power Supply Unit (PSU) control, distributed power, backplane systems, and rack-mount servers with hot-swappable memory cards. It is also well suited for low power applications, such as embedded systems and networking applications, providing a cost-effective solution.

The working principle of the ISL61863IIRZ-T is based on controlling the power by monitoring the input voltage. An internal voltage supervisor circuit monitors the input voltage, and when it detects a voltage above a certain threshold, it turns on the hot-swap control circuit. This causes the current control MOSFETs to start conducting, allowing the power supply to provide current to the load. When the input voltage drops below the threshold, the voltage supervisor turns off the control circuit, cutting the power supply from the load.

The ISL61863IIRZ-T also includes a digital programmable voltage monitoring (PVM) circuit to enable users to configure the threshold voltages, set the reference voltage and enable fault protection. The PVM is programmed through an I2C interface, which allows the user to configure the circuit for specific applications. This feature allows the ISL61863IIRZ-T to be used in any power-on/power-off control application.

The ISL61863IIRZ-T is a highly reliable power controller that provides over-temperature, over-current, and over-voltage protection. Its wide-ranging operating temperature capabilities make it a suitable choice for a variety of hot-swap designs. Additionally, its low component count, wide input voltage range, and integrated fault protection make it cost-effective, allowing designers to minimize cost and maximize performance.

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