ISL8842AABZ-T

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Power Management Integrated Circuit (PMIC) - AC DC Converters, Offline Switchers

The ISL8842AABZ-T is an integrated power management IC (PMIC) designed to deliver an output voltage of anywhere between 1.235 V and 36 V, with a maximum output current of 8 A. As an integrated circuit, it provides a complete, robust and easy to use solution for medium and high power offline applications, providing excellent efficiency, superior ac input to output ratio, low EMI and high efficiency driver capabilities.

This PMIC belongs to the category of AC DC converters, offline switchers and power management integrated circuits. The ISL8842AABZ-T offers a variety of features and functions, all combined in a single integrated circuit. It offers a fixed-frequency PWM voltage-mode control, programmable current limits, protection against over-temperature, and over-current, plus power good and fault status outputs. It also includes an innovative synchronization feature that enables the switching frequency of multiple parts to be linked, thereby avoiding any interference between controllers.

In order to achieve the utmost performance, the ISL8842AABZ-T integrates a wide range of components and features into its design. Its linear integrated circuitry ensures consistent and reliable performance. The MOSFET part of its design features Fast Recovery Rectifiers (FRR) with extremely fast switching speeds, low input capacitances, low on-voltage drop, and high loop gain. Additionally, the choice of external components is also optimized to minimize inductive losses and optimize overall operation.

The ISL8842AABZ-T operates mainly in a voltage regulator mode, providing an adjustable output voltage from as low as 1.235 volts up to 36 volts. It achieves a peak efficieney of 95%, with an average efficiency of 80-90%. By using techniques such as pulse skipping, active-clamp reset, and peak current limit control, its load regulation is extremely tight.

The PMIC’s primary application field is in power management-related applications where offline switching, power conversion, and power regulation are required. It is especially suitable for powering DC fan motors, such as those found in computer servers. It can also be used for various renewable energy applications such as solar panel inverters, wind turbines, and fuel cell power systems. Additionally, the ISL8842AABZ-T can be used for motor control in industrial applications, such as robotic motors.

To sum up, the ISL8842AABZ-T is a robust, integrated power management IC designed for medium and high power offline applications. It offers excellent efficiency and high-performance characteristics integrated into a single, easy to use package. Its wide application field includes powering DC fan motors in computer servers, renewable energy applications, and motor control in industrial settings. Its robust design, combined with optimized external components, provides reliable operation and excellent performance.

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