XR79120EVB

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The XR79120EVB Evaluation Board is a DC/DC & AC/DC (Off-Line) SMPS (Switching Mode Power Supply) that can help to meet the needs of today\'s power development and design challenges. The XR79120EVB has been designed to support a wide range of voltage regulation and power conversion requirements. The evaluation board is equipped with an efficient power supply system with a wide evaluation range and offers many features that can help to reduce the complexity of power design applications.

The XR79120EVB is for applications requiring high current. It is well suited for Power over Ethernet (PoE) applications and DC to DC conversion for automotive, industrial, communications, and consumer markets. The XR79120EVB features a wide range input voltage of 5.5V to 32V as well as an output voltage of 9V to 18V with a maximum output power of 120W. The board is equipped with on-board measurements, over-voltage protection for Vout, output short-circuit protection, and cycle-by-cycle over current protection.

The XR79120EVB is equipped with a single phase synchronous rectifier PWM controller (XR79120) and provides a wide range of switching frequency adjustment from 300kHz to 2MHz which allows flexibility in design and implementation. The XR79120EVB utilizes TO-263 SMD MOSFETs, which are low-cost parts that provide for wide current ranges. The board includes two power MOS transistors (30A and 25A) for positive and negative side drives respectively. The XR79120EVB also features high efficiency at its light load conditions allowing reduced power losses during idle times.

The XR79120EVB board is designed for easy use and includes mounting holes for fixing the board to larger heatsink surfaces. An output voltage trim pot allows for output voltage adjustment over its operating voltage range and is great for more accurate rig matchups. The XR79120EVB also includes a green LED that lights up when the EVB is in its normal operating condition.

The working principle of the XR79120EVB board is based on the switching mode power supply (SMPS) technique. It utilizes a power supply that utilizes a switching topology to convert the voltage or current from alternating current (AC) to direct current (DC). The XR79120EVB utilizes a Pulse Width Modulation (PWM) control IC, which switches the transistors on and off at a given frequency to create an output voltage. This PWM technique allows for highly efficient and accurate power conversion. The XR79120EVB also uses advanced protection features such as over-voltage protection for Vout and output short-circuit protection to ensure safe operation.

The XR79120EVB is a high performance evaluation board for applications requiring continuous current, and is ideal for PoE (Power over Ethernet) applications and DC to DC conversion for automotive, industrial, communications, and consumer markets. The board is designed for input voltages of 5.5V to 32V and output voltages from 9V to 18V with a maximum power of 120W. It utilizes a highly efficient PWM control IC and features over-voltage protection, output short-circuit protection, and cycle-by-cycle over current protection. The board also features a green LED that lights up when the board is in normal operating condition. The board is relatively simple to set up and use and is a great choice for high current applications.

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