LM3646EVM

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Evaluation Boards - LED Drivers

The LM3646EVM from Texas Instruments is an evaluation board for the LM3646 family of high efficiency, single-channel LED drivers. This evaluation board can be used to evaluate the LF3646 as well as a number of other LED drivers in the same family. This board helps engineers quickly evaluate the performances of their desired driver, such as the LM3646, or to use the board as a development platform for their own customized LED driver requirements.

The LM3646 is a fully-compliant, single-channel LED driver supplying up to 35W of output power. It features a wide LPOS output voltage ranging from 8V to 38V, along with a programmable current operating range of 20mA to 500mA, which makes it suitable for driving a wide range of loads from low- to high-power LEDs. This makes the LM3646 extremely flexible and suitable for a variety of applications. It also integrated a constant ON-OFF current limiter to protect against unexpected load short circuits.

The LM3646EVM is a stand-alone unit requiring no additional parts. It is programmed through a 10-pin, in-circuit debug header, which provides a complete solution for evaluating and developing the LM3646 LED driver for various applications. The evaluation board comes with various protections and will detect open, short, and over temperature conditions. The board is designed to operate with an input voltage range of 5V to 24V.

The LM3646 has a wide range of application fields. It can be used for general lighting such as LED lighting, display backlighting, signage, and automotive lighting. It can also be used in specialized application fields such as in-depth imaging, medical imaging, laboratory equipment, and machine vision. Due to its input voltage range, it can even be used in applications such as environmental monitoring, where the input voltage can fluctuate due to changing environmental conditions.

The LM3646EVM utilizes a voltage-mode boost control architecture for low EMI noise and a high-precision current control loop for accurate output current control. The constant-on/off current limiter provides adjustable peak current control to protect against load and fault conditions. It also includes an adjustable slope compensation to reduce the effects of output device oscillations and a high-current, fast-response short-circuit protection.

The LM3646even is equipped with configurable protection features such as undervoltage protection, thermal protection, and fault protection. The board also includes an integration LED on board that displays the LED working condition. The board can be operated in either standalone or remote mode. In standalone mode, it can be controlled by the integrated buttons and LED indicators, while in remote mode, it can be externally controlled using an external interface.

The LM3646EVM offers a wide range of features and flexibility, making it suitable for a variety of applications. It is a powerful tool for the development and evaluation of LED drivers. Engineers and designers can easily use this evaluation board to quickly prototype their designs without investing in a costly design process. The LM3646EVM is a great choice for developing and testing a variety of LED applications.

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