MAX16824EVKIT+

The MAX16824EVKIT+ is a cost-efficient evaluation board designed for evaluating the operation and testing performance of the MAX16824 LED Driver. This integrated circuit is a constant-current and dimmable LED controller with a 9- to 28-V input range which ensures compatibility with many dual-string, multistring, and single-string LED lighting fixtures. It can be used in a variety of applications, from solid-state lighting to decorative lighting and perimeter lighting.

Features of MAX16824EVKIT+

The MAX16824EVKIT+ offers a variety of features for easier evaluation and testing. It can handle 300 mA load current and supports operation with either direct AC line or a suitable DC input. It also has an on-board oscilloscope for flexibility in measuring input and output signals. Additionally, the board is pin-compatible with the MAX16819, which allows designers to preview how this LED driver works with different configurations without requiring hardware changes.

Applications of MAX16824EVKIT+

The versatile application field of MAX16824EVKIT+ ensures its suitability for a wide range of LED lighting fixtures. This includes the use in downlights, streetlights, landscape lighting, parking lots and garages, RGB lighting, ceiling lights, floodlights, and many other areas. Additionally, it is a suitable choice for high-reliability and automotive applications due to its onboard power-fail detection and fault-signal monitoring features.

Working Principle of MAX16824EVKIT+

The MAX16824EVKIT+ utilizes three integrated circuits to control LED current and brightness through one LED string. It contains a power factor controller (PFC) and two dimmable LED drivers. The PFC is responsible for enabling efficient boost mode operation, while the two dimmable LED drivers enable flicker-free, lowTHD dimming for dual-string LED applications.

The first dimmable LED driver functions as a current sink or source, while the second one functions as an analog dimmer. The analog dimmer is responsible for adjusting the current of both LED strings in order to achieve precise dimming control. Since the second dimmer allows for precise dimming functions, it is able to achieve smooth transitions in any brightness level.

Moreover, the MAX16824EVKIT+ is also capable of detecting power-fail conditions and sending a signal to indicate the loss of power. This feature allows for better system reliability and protection of both the LED fixture and its load.

Conclusion

The MAX16824EVKIT+ is an evaluation board designed for the MAX16824 LED Driver, which is suitable for a variety of LED lighting applications. Its advanced features enable flicker-free dimming, dynamic temperature compensation, high THD, power-fail detection, and easy control of current. The MAX16824EVKIT+ is also compatible with the MAX16819, which allows designers to quickly prototype different LED lighting systems.