ADP5034RE-EVALZ

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Evaluation boards like the ADP5034RE-EVALZ provide a platform for designers and developers to test, calibrate and experiment with power supplies. This evaluation board has been developed to test the performance of the ADP5034 Step-Down DC/DC Converter, and in this article, we will explore its application field and working principle.The ADP5034RE-EVALZ is a DC/DC (off-line) SMPS evaluation board designed to evaluate and test the performance of the ADP5034 DC/DC converter. This evaluation board supports wide input voltage ranges from 4.75 V to 16 V DC and provides a wide output voltage range from 0.6 V to 4.7 V DC. The evaluation board also includes two analog current sensing capabilities, an adjustable current limit (OCP) circuit, two adjustable soft start circuits, as well as two thermal shutdown circuits.The ADP5034RE-EVALZ is suitable for a wide range of applications, from ultra-low current and low voltage on-board point-of-load applications to general purpose power supplies. It is suitable for commonly used applications in an array of industries such as consumer electronics, telecom, medical, automotive, and green energy.The ADP5034RE-EVALZ evaluation board is based on the half-bridge LLC resonant topology. This topology produces a soft switching, high efficiency solution, featuring low noise and high current delivery.The main components of the evaluation board include: the main power switch, the LLC Resonant Driver, primary control circuitry (power switch drive circuit, synchronous controller, current sense amplifier, soft start control, feedback circuit, and VCC sense circuit). The power switch also includes an integrated current sense, a main switching MOSFET, a body diode, a compensation network, and an isolated output filter. The LLC Resonant Driver includes a bootstrap diode, two gate drive MOSFETs, and an auxiliary oscillator circuit.The evaluation board also features several control and protection features, such as overvoltage protection, undervoltage protection, adjustable current limit, adjustable soft start, and the ability to monitor the output of the primary side.In operation, the ADP5034RE-EVALZ converts the input voltage into an output voltage in two steps. First, the main power switch switches the input voltage to the LLC Resonant Driver, which then switches the high voltage to the LLC Resonant Driver. The LLC Resonant Driver then steps it down and supplies power to the output side. The synchronous controller and current sense amplifier monitor the output for overvoltage, undervoltage, and overcurrent protection.The adjustable soft start, integrated with the primary control circuitry, allows users to set the start ramp voltage (VRSS), and the adjustable current limit allows them to define the maximum output current. The adjustable current limit also helps ensure safe operation of the evaluation board.In conclusion, the ADP5034RE-EVALZ evaluation board is a highly versatile solution for testing, calibrating and experimenting with power supplies. It is designed to be used in a wide range of applications, from ultra-low current and low voltage on-board point-of-load applications to general purpose power supplies. It features a number of control and protection features, including overvoltage protection, undervoltage protection, adjustable current limit, much more.

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