LT3755EUD-2#PBF

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The LT3755EU is a highly efficient, multichannel LED driver IC that is suitable for driving up to four LEDs with adaptive constant-current outputs. Through the use of its built-in dimmer, the LT3755EU can dynamically adjust the LED current based on the ambient light level. This IC also incorporates advanced features such as over-temperature protection, over-voltage protection, and over-current protection to ensure the longevity of the LEDs and overall system reliability. It is well-suited for a variety of general application fields that require regulated, constant current LED outputs.

LT3755EUD-2#PBF Application Field and Working Principle

The LT3755EU is a boost-topology, current-mode LED driver IC suitable for driving up to four LEDs. The maximum output voltage for this device is 60V, and its maximum output current is 500mA. It can either be supplied with a single lithum-ion battery or a wide input voltage range from 2.9V to 40V. The LT3755EU is designed with an adjustable internal current regulator, which enables the LED current setting to match the requirement of the specific application.

The LT3755EU features a wide range of operational features, including adjustable LED current, over-voltage protection (OVP), over-temperature protection (OTP), a 24-bit serial peripheral interface (SPI), and dimmable LED outputs. This IC also incorporates advanced features such as over-temperature protection, over-voltage protection, and over-current protection to ensure the longevity of the LEDs and overall system reliability.

The LT3755EU LED driver has a number of unique applications including LED warning signs, automotive dashboard lighting, LED displays, and large backlighting systems. With its large output voltage (up to 60V), the LT3755EU can drive multiple LEDs in series, allowing for long strings of LEDs to be driven from the same device. The LT3755EU is also suitable for driving LEDs at high power and/or high current levels, making it an ideal choice for applications such as high-power flashlights or search lights.

The LT3755EU integrates a current-mode boost topology for driving up to four LEDs and achieves up to 95% efficiency. Its built-in dimmer enables the device to automatically adjust the LED current based on the ambient light level. Additionally, the device includes programmable soft-start, adjustable current limit, over-voltage protection, and overtemperature protection. All of these features combined make the LT3755EU and extremely reliable and energy efficient LED driver.

Overall, the LT3755EU is an ideal choice for driving high-power LED sources in applications that require reliable and adjustable LED outputs. Its wide input voltage range, adjustable LED current range, and high efficiency make it suitable for a variety of applications with LED loads ranging from a single LED to large LED arrays.

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