ISL6115AIBZ-T

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PMIC - Hot Swap Controllers

The ISL6115AIBZ-T is a positive overvoltage, overtemperature and high-current monitoring and protection integrated circuit, also known as a hot swap controller, a type of power management device used primarily in computing and data processing applications. It is a combination of a high-side current monitor, an adjustable resistor and a low-side field-effect transistor (FET) switch on one chip. The FET acts as a switch that can be used to regulate the flow of high-voltage current into a digital load. The resistor allows the switch to be adjusted as the amount of current needed by the digital load changes over time. The monitor is used to detect any excessive current, which then triggers a signal to the switch to open and protect the digital load.

The ISL6115AIBZ-T has a pile of features that make it suitable in a wide variety of applications. It has a typical operating voltage of 4.5V to 22V, an adjustable threshold current of 10mA to 140mA and a maximum allowable peak current of up to 1A. It also has a hysteresis range of 2.5mV to 25mV, a power supply rejection ratio of 65dB, and a capability of both sinking and sourcing up to 1A. It is protected against over-temperature, over-voltage, and under-voltage and can be used with both single and dual powers supplies. It includes an advanced ESD protection mechanism and an advanced LED driver.

The applications include energy storage systems, over-voltage protection systems, embedded controller and system power distribution, etc. In the energy storage systems, it can be used as the first stage to buffer the voltage spike, and play a overvoltage protection role; moreover, in the embedded controller and system power distribution, it can be used as the core component to check the anomalies caused by the current input, and also carry out protection work.

The hot swap controller ICs like the ISL6115AIBZ-T are designed to safely initiate power on and immediately offload high-current, high-voltage loads often found in computer systems, network equipment, and telecom applications. They provide a number of features that ensure reliable power switching, Monitor the health of the system, reduce the risk of overloading and protect against overvoltage. The controller ICs are supervised by an external supervisor IC that reports faults associated with the system’s DC/DC converters, power supplies, inputloads, and other power-related components, providing a high level of dependability.

The self-monitoring features, ESD protection, and fault detection configurations of the ISL6115AIBZ-T make it ideal for hot swap designs. It provides efficient, safe and reliable power transfer when connecting and disconnecting a board with a high-current input. The low power-on threshold, adjustable overcurrent threshold, maximum-fault current clamp, adjustable hysteresis, and low quiescent current draw are all essential features that prevent accidental power-on and device damage.

In addition, the comprehensive over-voltage and over-temperature protection capabilities provide further safety against any voltage or temperature swings, ensuring maximum reliability and system uptime. The overcurrent protection helps reduce the chance of accidental overloading or system damage, providing designers a reliable and efficient solution for hot-swap applications.

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