ADD5203ACPZ-RL

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The ADD5203ACPZ-RL is part of a family of light emitting diode (LED) drivers for solid-state lighting (SSL) applications. This product belongs to the Power Management IC (PMIC) - LED Drivers category. In this paper, the application field and principles of its operation will be outlined.

The ADD5203ACPZ-RL is a high-efficiency LED power converter designed for energy-saving applications such as LED-based lighting fixtures. It combines over-voltage protection, over-temperature protection, and overload protection in a tiny 4-ball WLCSP package. Featuring with a wide operating voltage range up to 36V, it supports input voltages ranging from 8V to 36V, making it ideal for use in automotive, industrial and commercial lighting applications. Furthermore, its full-bridge output structure provides higher power efficiency and higher power density.

In terms of its working principles, the ADD5203ACPZ-RL is a typical DC/DC high-voltage step-down PWM (pulse-width modulation) converter. Its internal controller can precisely regulate the output voltage over a wide range of load conditions, and its control loop quickly adjusts the output voltage and current in real-time. The chip contains a feedback, error amplifier, frequency generator, and an active peak current mode control circuit on a single chip, which provides excellent dynamic regulation performance and low EMI, reducing interference with other components.

The external components of the ADD5203ACPZ-RL consist of a MOSFET transistor and two sense resistors. The external MOSFET transistor works in conjunction with the integrated control circuit, providing PWM drive that modulates the MOSFET gate voltage and hence the current to the load. With this, the output voltage and current of the LED string can be precisely regulated. This can result in higher efficiency, higher power conversion, and better reliability.

The ADD5203ACPZ-RL is a great choice for applications such as LED lighting fixtures, street lights, area lighting, and other SSL applications. The accurate control of current and voltage providedby the device allows for high-efficiency and stable operation of the SSL system. With these features, this device can be a reliable solution for cost-effective LED lighting solutions.

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