LT3756IUD-2#PBF

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PMIC, or power management integrated circuits, serve as a vital component in many types of systems and devices, providing the necessary control and protection for the circuitry. One type of PMIC is the LED driver, which allows for the reliable and efficient delivery of power to LEDs. An example of a powerful and versatile LED driver is the LT3756IUD-2#PBF.

Application Field of LT3756IUD-2#PBF

The LT3756IUD-2#PBF is a 2A, integrated high voltage boost converter, suitable for driving a wide range of LEDs. It is designed for the use in extremely space-constrained applications, such as mini projectors, automotive lighting, and LED bulbs & fixtures. It has an operating voltage range of 6V to 40V and an LED driving voltage range of 1.2V to 120V.

Another outstanding feature of this device is its wide output current setting, which varies from 5mA to 2A according to the internal operating mode. In addition, it features temperature compensation and open/short LED protection. As the LT3756IUD-2#PBF can boost input voltage up to 60V, it is suitable for both single and multiple series LED applications. It also has a wide range of injection dimming input settings, allowing it to be used in various dimming applications.

Working Principle of LT3756IUD-2#PBF

The LT3756IUD-2#PBF is a high efficiency switching boost regulator that uses a current-mode architecture for constant current LED driving. The device employs a boost topology with auto skip-cycle mode, which is its unique feature that reduces switching losses at light load. The switching frequency is automatically adjusted according to its load current, enabling higher efficiency at light load.

In addition, the LT3756IUD-2#PBF also has an adjustable soft-start feature, which helps keep the system stable during start-up and helps reduce component stress. The device also provides pre-bias start-up for low input voltage applications. It also features over-current protection, open/short LED protection, and over-temperature protection.

The LT3756IUD-2#PBF also has an internal oscillator with selectable frequency. It features a frequency synchronization option, which allows the device to synchronize its switching frequency with the frequency of an external clock. It also provides a low voltage lockout function to prevent incorrect operation.

Conclusion

In conclusion, the LT3756IUD-2#PBF is a versatile and powerful LED driver designed for space-constrained applications. It features an adjustable output current setting of 5mA to 2A and an input voltage range of 6V to 40V. It is suitable for both single and multiple series LED applications, and provides a wide range of injection dimming input settings. The device also features over-current, open/short LED, and over-temperature protection, as well as a pre-bias start-up and low voltage lockout. The LT3756IUD-2#PBF is an excellent choice for efficient and reliable LED driving.

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