ISL8842AMUZ-T

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In the field of power management integrated circuits, the ISL8842AMUZ-T is a highly integrated power switched-mode power supply (SMS) controller optimized for off-line applications including automotive cold cranking and AC/DC applications. As an advanced, energy-efficient device, the ISL8842AMUZ-T provides a fully integrated, flexible and robust design methodology suited for a variety of high-volume application requirements.

The ISL8842AMUZ-T features a topology that combines a simple flyback-type converter with a coupled inductor, supplying multiple outputs with a single input voltage. It is a cost-effective device for a variety of light loads, across a broad range of input voltages. It has a low-power consumption and wide temperature range, making it ideal for automation, HVAC and other energy saving applications.

The main features of the ISL8842AMUZ-T include an integrated PFC boost converter, a low start-up current and stand-by current, adjustable frequency operation and over-current protection. Additional features include an integrated over-voltage protection and a selectable burst mode control that help reduce power consumption in no-load conditions. The device also features an adjustable ripple filter to help minimize the output voltage ripple and reduce noise.

The overall working principle of the ISL8842AMUZ-T is simple and straightforward. The PFC boost converter first boosts the input voltage to a regulated level, which is then sent to a coupled inductor. The coupled inductor works in tandem with the secondary side power switch to provide multiple output voltages, depending on the load. The output voltage is then conditioned by the ripple filter, for optimal efficiency and noise reduction.

The ISL8842AMUZ-T is a highly integrated and cost-effective device for SMPS applications and is ideal for use in a variety of high-volume applications. Its integration of PFC, low power consumption and over-voltage protection make it ideal for automotive, HVAC, industrial and other energy saving applications. In addition, its adjustable ripple filter ensures a high level of efficiency and reduced noise for a variety of light loads.

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