ICE3BR4765JZXKLA1

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PMIC (Power Management Integrated Circuits) play an important role in the management of electronics such as processors, microcontrollers, memory, and analog interfaces. Among these are AC/DC Converters, Offline Switchers, and ICE3BR4765JZXKLA1, which help to optimize and maximize the efficiency of power consumption.

The Application Field of ICE3BR4765JZXKLA1

ICE3BR4765JZXKLA1 is an integrated single-phase offline aperiodic quasi-resonant controller, suitable for use in offline power supplies. It is designed to provide an optimized solution for products with high standby efficiency, such as notebook PCs. It provides flexible solutions for AC/DC power conversion from standard AC sockets to low voltage DC outputs, through features such as pre-biased startup, error signal monitoring, frequency jittering, integrated power MOSFET and current limiting.

The ICE3BR4765JZXKLA1 is well-suited for applications requiring high efficiency and high power conversion ratios. It is suitable for a wide range of non-dimmable LED lighting, such as downlights, spotlights and streetlights. Additionally, it can power household appliances such as refrigerators, washing machines and kitchen appliances, while minimizing stand-by power consumption.

Working Principle of ICE3BR4765JZXKLA1

The ICE3BR4765JZXKLA1 works by integrating a pre-biased start-up technique and quasiresonant control. The two main operational modes of the device are the conduction and no conduction modes. When in conduction mode, the device controls the switching cycles to reduce EMI (electromagnetic interference) and improve the power efficiency. During no conduction mode, the PFC (power factor correction) input rectifier is rectified, supplying energy to the output capacitor.

As well as controlling the switching cycles, the ICE3BR4765JZXKLA1 also controls the output current and voltage. This is done through the use of an integrated Primary side Frequency Jittering (PFJ) feature, which ensures current and voltage regulation over a wide temperature range. PFJ reduces EMI by changing the switching frequency and Short-On, Long-On pulse time ratio. This technique provides greater stability, efficiency and power quality.

The ICE3BR4765JZXKLA1 also provides an integrated Over Current Protection (OCP) circuit, as well as a programmable Earth Leakage Current (ELC) system. The OCP circuit protects the output by limiting the output current, while the ELC system detects a ground fault and shuts down the output. Both systems provide both protection and regulation of the power transfer, ensuring a reliable and stable power conversion system.

Finally, the ICE3BR4765JZXKLA1 is designed to ensure maximum efficiency and power quality over a wide range of loads. The integrated digital and analog features increase the efficiency of the circuit and allow for complete control over power conversion. This ensures maximum efficiency and power quality for all types of loads.

Conclusion

The ICE3BR4765JZXKLA1 is a single-phase offline aperiodic quasi-resonant controller, designed to optimize and maximize the efficiency of power consumption. It provides flexible solutions for AC/DC power conversion from standard AC sockets to low voltage DC outputs, through features such as pre-biased start-up, frequency jittering, integrated power MOSFET, current limiting, OCP and ELC. This device is suitable for use in a wide range of non-dimmable LED lighting and household appliances, allowing for maximum efficiency and power quality.

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