ADP2387-EVALZ

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The ADP2387-EVALZ evaluation board is part of the family of evaluation boards with integrated switch-mode power supplies (SMPSs). It is part of the Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS variety of SMPSs, meaning that its power supply is able to intake AC power input and efficiently convert it to DC power output - both with high efficiency ratings. It features a high performance synchronous rectified and constant features, leveraging both low on-state resistance and a low over-current limit to handle a wide range of input voltage, while providing excellent load and line regulation. Its output voltage range is configurable from 1.8V to 5V.

The ADP2387-EVALZ Evaluation board features an additional small-signal output, which can be used to regulate the output voltage of the board with a standard resistor divider. This small-signal output can provide good voltage regulation, but may have limited current drive capability. It also offers high switching efficiency, low quiescent current during standby mode, simple calculation of power supply parameters, and fast dynamic response. It can deliver up to 2 A of continuous DC output current with very good load and line regulation.

The primary application field of the ADP2387-EVALZ includes high power industrial systems, mobile and portable devices, and dense installations where board space is at a premium. In these systems, its flexible and high-performance switching architecture enables the user to customize the system output voltage to a wide range of application requirements. The board also provides users with an quick and easy way to prototype their application, effectively allowing the user to measure the system performance, optimize design, and make sure the board meets the design requirements.

The working principle of the ADP2387-EVALZ is quite straightforward. It comprises a power stage consisting of two power MOSFETs, a synchronous rectifier, and a feedback circuitry with a fixed frequency oscillator. These components form the basic function of the board - converting an AC input into a DC output. The two power MOSFETs are used to control the switching of the power supply, wherein each MOSFET is turned on for a given amount of time and then off, and vice versa, resulting in an alternating current power input being converted to a direct current power output.

The feedback circuitry guides the power stage, providing the necessary control signals to keep the power stage in synchrony and the output voltage of the board constant. The control loop takes data from the various components, such as the current transformer, the shunt, and the voltage divider, and provides feedback to the power stage to make sure the output voltage and current meet the desired conditions. In addition, the integrated soft-start circuit ensures a low stress start-up of the power supply.

In conclusion, the ADP2387-EVALZ evaluation board can be used to evaluate the performance of a wide range of load types, ranging from motor drives to low power point of load regulators. Its versatile control loop enables the user to adjust the board parameters and tailor the board performance to a range of application requirements, as well as providing a good solution for prototyping. Its key features include a 2A output, a wide operating range, and a simple calculation of power supply parameters, as well as good load and line regulation, high switching efficiency, and fast dynamic response.

The specific data is subject to PDF, and the above content is for reference