LM3642TL-LTEVM

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Evaluation boards, or EVMs, are designed to provide engineers with a platform to evaluate and test different components of a system without the need to design a custom setup or circuit. The LM3642TL-LTEVM is an evaluation board designed to evaluate the LM3642TL series of LED drivers, produced by Texas Instruments. The LM3642TL series drivers offer a complete solution for driving LEDs, providing current and temperature protection, adjustment of the peak current and slopes, and a wide range of operating conditions. This application note will discuss the application field and working principle of the LM3642TL-LTEVM.

Application Field

The LM3642TL-LTEVM is designed to evaluate the LM3642TL-series LED drivers, which are designed to drive single- and multi-string LEDs with a range of currents up to 1.2A. These drivers are highly efficient and feature integrated over-current, over-temperature, and short-circuit protection, as well as adjustable peak current and slope settings. They are also available in a wide range of operating voltages, suitable for use in industrial, automotive, and consumer applications. In addition, the LM3642TL-LTEVM includes integrated circuit protection, eliminating the need for external components.

Working Principle

The working principle of the LM3642TL-LTEVM is based on the working principle of a LED driver. A LED driver is an electrical circuit designed to control and optimize the current that flows to a LED or LED array. This is important as LEDs require precise current control to prevent them from overheating or being damaged. The LM3642TL-LTEVM uses an integrated control circuit to regulate the current flowing to the LEDs. This control circuit ensures the LED is not exposed to current that exceeds its safe limits, and also allows for the peak current to be adjusted. This can be done via the included potentiometer and potentiometer resistors.

The LM3642TL-LTEVM also features an adjustable low-dropout linear regulator, which provides an adjustable and stable output voltage for the LED driver. Additionally, the onboard temperature sensor can be used to monitor the temperature of the LED driver, providing an added layer of protection against overheating. Finally, the integrated short-circuit protection prevents current from being supplied to the LED driver when an excessive amount of current is detected.

Conclusion

The LM3642TL-LTEVM is an evaluation board designed to evaluate Texas Instruments’ LM3642TL-series LED driver. This evaluation board is designed to provide engineers with a platform to evaluate and test different components of the system, eliminating the need to design a custom circuit or setup. The LM3642TL-LTEVM features integrated circuit protection, adjustable peak current and slopes, and a wide range of operating voltages, making it suitable for use in a variety of applications. Additionally, the board also includes an integrated temperature sensor and short-circuit protection to ensure the LED driver is not exposed to current that exceeds its safe limits.

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