LTC3220IPF

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The LTC3220IPF is an automotive-grade open-loop linear current regulator designed to provide superior lighting control and reliability. It eliminates the need for external timing components, including inductors and resistors, while simplifying the current-setting process. The part is targeted towards applications such as LED lamps, tile and area lighting, low-brightness lamps, indication lights and automotive interior and exterior lighting.

The LTC3220IPF is a single-chip LED driver that features a precision 0.2% current regulation accuracy over a wide range of input voltage (6V to 25V, depending on the device). It accepts a wide range of input signals from 0.5V to 10V to control output current, as well as an external offset to adjust current on the fly. In addition, it has a built-in programmable protection loop to protect the LED chain from overvoltage and overtemperature conditions. The protection loop also helps improve the power efficiency of the device and reduces the total system cost.

The LTC3220IPF\'s working principle is based on a closed-loop drive concept, in which the current setting is regulated through feedback from the output current, not from the input voltage. It provides a wide voltage dynamic range and can run from 12V to 24V. The compensation loop ensures a wide voltage range with constant output current, and maintains accurate control even when the load changes. This is especially important for applications that contain varying loads and need to maintain a consistent level of performance.

The LTC3220IPF can be used in many LED applications, including LED illuminated signs, LED interior and exterior lighting, automotive LED lighting, LED backlighting and LED based lighting systems. It is also suitable for applications in which accurate settings are required and consistency over time is essential. Due to its wide dynamic range and robust protection loop, it can help improve system reliability, reduce system size and cost, and extend product life.

The LTC3220IPF is an ideal choice for automotive LED lighting applications. It offers superior accuracy, reliability, robustness and system power efficiency. It is cost-effective, easy to implement and can extend the product life. Its versatile feature set makes it suitable for a wide range of LED based lighting applications.

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