ISL6410IRZ-TK

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ISL6410IRZ-TK Application Field and Working Principle

Continuous conduction mode (CCM) is a popular working mode for power factor correction (PFC) and other power supply solutions. The ISL6410IRZ-TK is a high-performance, high-efficiency, wide-input voltage regulator designed for use in CCM systems. It combines features such as a low-dropout voltage, a fixed voltage regulation, a PWM drive output with a high (1A) peak current, and an integrated metallic electromechanical relay. It is suitable for both single and three-phase applications with output voltages ranging from 12V to 350V.

The ISL6410IRZ-TK utilizes a switched-mode power converter with a primary side PWM controller, a secondary side P-channel power MOSFET, and a low-dropout linear regulator. This PWM approach allows it to deliver superior power efficiency and maintains highly accurate regulation with excellent protection capabilities and minimal standby power consumption. The PWM output also delivers a reduce ripple current profile, resulting in lower switching noise and improved EMI performance.

The working principle of the ISL6410IRZ-TK is relatively straightforward. It takes an input voltage and regulates it to a desired output voltage by controlling the applied PWM signal. This is done by comparing the output voltage to a reference voltage, which is determined by an external resistor or voltage divider. The difference between these two voltage values determines the PWM signal and the resulting output voltage.

The power MOSFET on the secondary side of the device is then switched on and off to regulate the output voltage according to the PWM signal. The integrated relay allows the device to operate as a frequency-controlled switch, allowing synchronized switching of multiple power elements for higher-power applications. The device also features a slew-rate limit (SRL) to help avoid false triggering of the relay during startup, as well as a thermal protection loop for over-temperature protection.

The ISL6410IRZ-TK is a highly efficient, reliable, and cost-effective voltage regulator, designed for use in a variety of industrial, telecommunications, and consumer applications. With its integrated features and high-performance characteristics, it is ideal for use in power factor correction, distributed power systems, battery management systems, and motor drives, among many other applications.

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