ICE2QR4780GXUMA2 Integrated Circuits (ICs)

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The ICE2QR4780GXUMA2 is a highly amenable and cost-effective power management integrated circuit (PMIC) designed for offline switch mode power supply (SMPS) applications. An offline SMPS is a complete power control solution that includes multiple stages, including a power factor correction (PFC) stage, a DC-DC converter stage, an inverter stage, and an output stage. The offline SMPS is capable of delivering an output power of up to 100 Watts.
The ICE2QR4780GXUMA2 integrates several features to form an optimal system solution for offline power supplies. The device is a single-package, offline converter solution with a combination of two converters, the AC to DC converter, and the DC-DC converters. The AC-DC converter is a full bridge zero voltage switching (ZVS) PFC stage designed for a wide selection of offline power supply applications. The DC-DC converter is a double-end quasi-resonant (DEQR) Flyback controller designed for high efficiency and low component count power supply design.
The ICE2QR4780GXUMA2 is designed for easy integration into the overall circuit solution. The device includes a wide range of features such as integrated control loop compensation, overvoltage protection, over temperature protection, standby control and so on to achieve optimal performance and power supply efficiency. Additionally, the device includes additional features such as automatic primary side regulation (APSR), which provides a constant output voltage with very little output ripple and is suitable for a wide range of input voltage variation.
The working principle of ICE2QR4780GXUMA2 is simple and straightforward. The AC-DC converter takes AC input and converts it to DC voltage by summarizing the AC voltage peaks using ZVS based PFC stage. This DC voltage is then converted to DC-DC converter using a flyback controller. The output voltage from this stage is then regulated and allowed to pass out or further conditioned to provide the required output voltage. The device also includes additional features such as over-voltage, over temperature protection, opto-coupler feedback compensation and APSR. The ICE2QR4780GXUMA2 is suitable for use in a wide range of offline SMPS applications. It is ideal for applications such as mobile chargers, UPS systems, home appliances, networking devices, and more. The device is capable of delivering a wide selection of output voltage and power with low output ripple and high efficiency. The integrated features and optimized system solution provided by the device enable the design of very simple and cost-effective switch mode power supply solutions.
In conclusion, the ICE2QR4780GXUMA2 is a highly amenable, cost-effective, and efficient PMIC designed specifically for offline SMPS applications. The integrated features and optimized system solution enable the design of very simple, low component-count, and cost-effective power supply solutions. The device is highly suitable for a wide range of applications such as mobile chargers, UPS systems, and home appliances.

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