EA4501SH

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The EA4501SH evaluation board is a DC/DC & AC/DC (Off-Line) SMPS (Switching Mode Power Supply) that provides a step-down power converter in an 8-pin, surface mount package. The board has three main components: a controller IC, a high-frequency transformer and a MOSFET switch. The board is designed to provide a regulated output of 5 volts at up to 3.3 amps or 12.5 volts at up to 2.5 amps.

The controller IC utilizes pulse-width modulation (PWM) control to regulate the output voltage. The PWM frequency is adjustable up to 500Hz to minimize EMI. The number of output stages and the maximum duty cycle of the PWM signal can also be easily adjusted with external components. The MOSFET switch is controlled by the controller IC and is used to switch the output voltage ON and OFF as per the PWM control. The controller IC also senses the input voltage, current, and duty cycle to provide overload protection and prevent output voltage overshoot.

The board also includes a high-frequency transformer that operates at up to 100kHz to reduce the output voltage ripple. The transformer is designed to provide a low-noise, low-distortion output waveform. The board also includes several protections like input UVLO, output over-current, over-voltage, and short-circuit protection. The board also has an operating temperature range of 0-50°C which makes it suitable for use in a wide range of applications.

The EA4501SH evaluation board is a perfect platform for designers to test and evaluate the performance of DC/DC & AC/DC (Off-Line) SMPS. The board is also ideal for power system designs due to its low power consumption and high efficiency. The board can be used in applications such as automotive, industrial, telecom, computers, and consumer electronics. With its adjustable PWM frequency, external MOSFET and its wide operating temperature range, the EA4501SH evaluation board is a versatile platform that offers excellent solutions for power supply designs.

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