98-0522TRPBF

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Introduction: The 98-0522TRPBF application field and working principle are a part of the PMIC – LED Drivers family. The 98-0522TRPBF is a step-down DC/DC controller for driving high-brightness LEDs efficiently and reliably, with adjustable output current and a wide input voltage range. The device provides over-temperature and output short-circuit protection, making it ideal for a variety of lighting applications from automotive to general lighting.

Product Overview: The 98-0522TRPBF is a step-down DC/DC controller operation up to 500KHz, offering higher efficiency and smaller solution size than other methods of LED driving. It operates with an input voltage of 6V to 100V, outputting current up to 4A. The device features adjustable current regulation, allowing it to be more easily calibrated without external components. Auto pulsed frequency modulation reduces EMI in noisy environments, and PFM mode extends battery life in low power applications. Additional features include over-temperature protection, over-voltage protection and short-circuit protection.

Working Principle: The core of the 98-0522TRPBF is its integrated low-dropout linear regulator, which provides a constant output current to the high-brightness LEDs connected to its output. At the same time, a 175mA current flows from its current control pin and is sensed by the control circuit of the device. If the voltage on this pin does not correspond to the desired value, the device adjusts the output current accordingly to maintain the required output current. The 98-0522TRPBF also includes an internal oscillator, allowing the device to operate with higher switching frequencies, resulting in higher efficiencies and smaller solution footprints.

Advantages: The 98-0522TRPBF has several advantages over other LED drivers, including its high efficiency, wide input voltage range, adjustable current regulation and auto pulse frequency modulation. The device also offers several protection features, such as over-temperature and output short-circuit protection. These features make the 98-0522TRPBF ideal for high-brightness LED applications in a variety of lighting applications.

Applications: The 98-0522TRPBF is a high-efficiency device for driving high-brightness LEDs in automotive, general and other professional lighting applications. The device is also suitable for ultra-thin applications, such as mobile phones and PDAs, due to its compact size. The device is also suitable for touch-sensor applications.

Conclusion: The 98-0522TRPBF application field and working principle fall under the PMIC – LED Drivers family. The device offers high efficiency, wide input voltage range, adjustable current regulation and many protections, allowing it to be used in a variety of lighting applications. The device is also suitable for ultra-thin applications, such as mobile phones and PDAs, as well as touch-sensor applications.

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