TPS92638EVM

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Evaluation boards are the most efficient and cost-effective way for designers and engineers to design, test, and evaluatethe performance and functionality of circuit components. It provides a safe and reliable platform for connecting and testing different electronic parts. The TPS92638EVM from Texas Instruments is a LED driver evaluation board. It is designed to evaluate the performance of the TPS92638 LED Driver.

Overview of TPS92638EVM LED Driver

The TPS92638EVM is an LED driver evaluation module (EVM) with a 4A-capable step-down converter with adjustable current limiting and an open-drain output voltage selection (TPS92638). The EVM includes an external N-type MOSFET and current Sense resistor, both included in a single package. This evaluation board is used to quickly evaluate and test the operation of the TPS92638 LED Driver in a controlled environment. This board is designed to run from a wide supply voltage range of 5V to 24V and is capable of operating with a peak current of up to 4A. The evaluation board also includes an integrated filter capacitor and protection circuit to help reduce EMI and ensure longer protection rates. Furthermore, the integrated current limit functionality can be adjusted to limit total LED string current.

Application Field of TPS92638EVM LED Driver

The TPS92638EVM LED driver can be used in a variety of applications requiring step-down conversion from higher voltage sources to lower voltage LED strings. It is suitable for driving LED strings in LED display boards, LED signage, LED backlighting for LCD panels, LED luminaires, and LED decoration. Additionally, this LED driver evaluates the ability of the TPS92638 LED driver to drive high-power LED strings in a variety of applications. The TPS92638 device can also be used in automotive, medical, industrial, and consumer applications.

Working Principle of TPS92638EVM LED Driver

In operation, an adapter is connected to the EVM to provide an input voltage of 5V-24V. The input voltage is then stepped down by the integrated buck converter, making the TPS92638EVM suitable for applications requiring constant-current, regulated output led strings. The output voltage is adjusted using the on-board jumper to set desired current limiting. This can be done by setting the Open Drain Output (ODO) connector on the board to the desired voltage level.The TPS92638EVM also features an adjustable current limit which allows to limit peak LED current to prevent over-heating. The current limit is adjustable by setting the four-way DIP switch on the EVM. This DIP switch is used to adjust the current limit in 10mV steps between 20mV and 230mV. The integrated filtering capacitor helps reduce EMI and provide longer protection cycles.

Summary

The TPS92638EVM LED driver is a powerful and efficient platform for evaluating, testing and designing LED string-based applications. It offers an adjustable current limit and an open-drain output voltage selection for constant-current, regulated LED string output. It is suitable for applications including LED displays, LED lighting, LED backlighting, LED luminaires and LED decorations. The EVM includes an external N-type MOSFET and a current sense resistor, both in a single package, and an integrated filtering capacitor to reduce EMI and extend protection cycles.

The specific data is subject to PDF, and the above content is for reference