LM3648EVM Development Boards, Kits, Programmers

The LM3648EVM is an evaluation board designed by Texas Instruments to evaluate the LM3648, a High-Current LED Controller with Programmable Current Limit. The LM3648EVM provides designers with a platform to evaluate the performance of the LM3648 with a simple step-by-step method. The board can be used to test and optimize the operating parameters and eliminate any uncertainties before the design is implemented. This evaluation board can be used for a wide range of applications such as automotive lighting, power and portable lighting and general illumination.

The LM3648EVM can drive up to 3 LEDs, with each output capable of delivering up to 500 mA. The board is designed to operate on an input supply ranging between 5 V and 28 V and provides a 6-bit digitally programmable current limit, which allows designers to select the appropriate output current for their application. The output current can be selected between 7.8 mA to 1000 mA, with a step size of 7.8 mA. The programming is provided via a SPI interface.

The LM3648EVM features two enable pins that can be used to enable/disable the LED outputs. This can be used to configure the output current in a variety of ways, allowing the board to be used in a wide range of applications. The board also has a soft start feature which is used to reduce input inrush current and makes it suitable for use in battery-operated applications. The board is designed to ensure optimum efficiency and reduce the risk of thermal runaway.

The LM3648EVM also offers protection against LED open and LED short circuits. The LED open detection will ensure that the LED output current is shut off in the event of an LED open circuit. The LED short circuit protection will ensure that the LED output current is reduced in the event of an LED short circuit. The board also has an over-temperature protection feature, which will shut off output in the event of an over-temperature condition.

Overall, the LM3648EVM is a versatile and powerful evaluation board that can help designers to easily optimize the performance of their designs. With its wide range of features, protection features and programmable current limits, the board can be used in a wide range of applications.