DC2727A

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DC2727A is a cutting-edge technology designed to enable system engineers, power designers, and application developers to expand their design automation and next-generation off-line SMPS systems. DC2727A is very suitable as a point of reference board on EVB, and is equipped with all the necessary elements for high-performance off-line SMPS designs. The EVB can effectively reduce the effort cost, timing, and debugging problems of an off-line SMPS system.

DC2727A Evaluation Board with the incorporated LT2727A DC/DC & AC/DC (Off-Line) SMPS IC offers a comprehensive integrated design platform allowing designers to conveniently evaluate the operation of off-line SMPS converters up to 250W in various configurations.

The DC2727A evaluation board is populated with all the required surface-mount components to build a flyback converter. It is designed as a universal board that can be used for numerous off-line SMPS applications. The DC2727A board also integrates all of the necessary safety features which are needed for a safe and reliable operation. It incorporates a soft start circuit to limit the inrush current, as well as a shunt for line current sensing for overcurrent protection.

The working principle of the DC2727A evaluation board is based on the buck topology and a twin-switch control scheme. The LT2727A on the DC2727A evaluation board is powered by an input voltage of up to 110Vrms and works in continuous conduction mode (CCM) with valley-switch control (VSC) technique. The LT2727A provides a complete control solution for precise off-line SMPS designs. Its adaptive auto-sizing feature helps minimize power loss and increases efficiency of the design.

The other features of the evaluation board are a pair of EMI filters for EMI and RFI reduction, as well as an auto-restart feature for short-circuit protection. The DC2727A also includes provisions for load current sensing as well as power-factor-correction (PFC) control. The evaluation board also includes a microcontroller for interfacing with the LT2727A and configuring various attributes. The high-speed PWM controller and low-noise oscillator on the board offer the best possible performance and ease of use.

Overall, the DC2727A evaluation board with the LT2727A DC/DC & AC/DC (Off-Line) SMPS IC offers a profound and user-friendly solution for off-line SMPS design applications. It helps reduce design times, prototyping times, and product development costs for a wide variety of applications. The evaluation board also includes all the necessary components to build a buck converter which can be used for powering variety of electronic loads.

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