LT3518EUF#TRPBF

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LT3518EUF#TRPBF is a high-density and high-efficiency, high-performance LED driver integrated circuit (IC) in the PMIC – LED Drivers category. It is designed for driving multiple and independent white LEDs in lighting applications, such as desk lamps, portable lights and notebook backlight displays. It provides the highest peak efficiency, the best linearity, low-power operation and excellent performance.

The LT3518EUF#TRPBF LED driver integrated circuit supports a wide range of LED brightness levels and is fully programmable and flexible. It supports high frequency PWM signals, which allow designers to optimize the LED brightness using PWM dimming methods. The LT3518EUF#TRPBF device also includes a high-efficiency boost regulator and an adjustable low-side current source to achieve high linearity and efficiency performance.

The LT3518EUF#TRPBF device operates from an input voltage range of 3V to 56V and supports up to eight white LEDs in a CC-CV (constant current-constant voltage) configuration. The device supports up to 15A of total current and delivers up to 95% efficiency. The operating frequency can be adjusted from 250kHz to 2MHz, and the current can be adjusted from 300μA to 30A per string. The device also provides built-in power-management features such as thermal protection and over-voltage protection.

The LT3518EUF#TRPBF LED driver integrated circuit is designed for applications requiring high current and high efficiency. It includes an integrated boost converter, low-side current source, temperature sensing circuit, and power-failure protection. This device is available in a space-saving, smaller footprint than conventional devices, making it suitable for space-constrained applications. Furthermore, the device is RoHS compliant and can be used in various end-user applications such as work lamps, wall washers, and exterior architectural lighting.

The LT3518EUF#TRPBF device includes a switching frequency that can be programmed up to 2MHz. The device operates in PWM mode to support LED dimming. The LED current is adjustable from 300μA to 30A per LED string, and the LED voltage can be adjusted from 3V to 12V. An internal oscillator is used to sense the LED forward voltage and clock the switching cycles. The device also provides adjustable current limiting, over-temperature protection, and output short-circuit protection. Additionally, power-good and power-failure outputs are available to monitor the output voltage and indicate the status of the drivers.

In conclusion, the LT3518EUF#TRPBF LED driver integrated circuit is a high-efficiency, high-density LED driver IC ideal for driving multiple and independent white LEDs in lighting applications. It is capable of driving up to eight white LEDs in a CC-CV configuration, and can achieve up to 15A of total current. The current can be adjusted from 300μA to 30A per string, and the switching frequency can be programmed up to 2MHz. The device includes built-in power-management features, is RoHS compliant and allows designers to optimize their LED brightness using PWM dimming methods. This device is available in a space-saving, smaller footprint than conventional devices, making it suitable for space-constrained applications.

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