THEVAL3502 Development Boards, Kits, Programmers

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The VAL3502 is a low-cost LED driver evaluation board suitable for laboratory and research applications. This board is designed to help users understand and develop LED lighting applications with lower design and development costs. This board is often used to build LED controllers, LED amplifiers, LED dimming systems, and other LED lighting solutions.

The VAL3502 uses constant voltage output for driving LED strings which require only a few external components for basic operation. It offers high-output precision current control without the need for additional ballasts. A programmable DC/DC boost converter feeds the output current so that no additional converter is needed. Additionally, the VAL3502 offers various dimming and color control options like PWM and analog dimming, color temperature adjustment, and other features.

The working principle behind the VAL3502 is quite simple. The board features two high-precision current sense resistors connected to the output DAC to provide a feedback control loop for the output current. The output current is controlled through a programmable pulse width modulation (PWM) mode. By changing the input voltage, the output current is increased or reduced accordingly.

In addition, the VAL3502 provides a wide range of LED current settings, from less than 1mA to up to 1000mA. This board also features thermal protection, programmable over-voltage protection, and over-current protection. All these features make it ideal for laboratory and research purposes.

The VAL3502 is a comprehensive evaluation board suitable for a wide range of LED lighting applications. Its wide range of output settings, current control options, flexibility, and protection make it a great tool for rapid prototypes. The board also makes it easy to quickly build LED controllers, LED amplifiers, LED dimming systems, color temperature controllers, and other LED lighting solutions.

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