AL1794EV1

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The AL1794EV1 is a controller-based, 16-channel LED driver that offers advanced current control and dimming for reliable and efficient LED operation. The outdoor LED driver operates from a 9 to 24V AC or DC input and can be used for lighting applications such as street and area lighting and architectural lighting.

Application Field

The AL1794EV1 LED driver is designed to drive low to medium power LEDs, including the popular LED models in the Luxeon, Boss, Multidiod LED, and SMD LED families. The driver’s versatile input voltage range allows it to be used in a variety of indoor and outdoor lighting applications, such as street and area lighting, perimeter lighting, architectural lighting, and outdoor display lighting.

The AL1794EV1 features advanced dimming capabilities, which enable tight control of the brightness of each LED channel. In particular, the driver supports pulse-width modulation (PWM) dimming, which is ideal for applications that require minimum power consumption and accurate lighting control. The PWM dimming range is fully adjustable, with a maximum dimming frequency of 20kHz.

The AL1794EV1 also offers thermal protection and excellent fault protection, which helps to ensure maximum reliability in outdoor applications. In addition, the driver includes overcurrent, overtemperature, and under- or over-voltage protection, which help to protect the LEDs from damage.

The AL1794EV1 is also compatible with DALI, DMX, and I2C control protocols. This enables the driver to be used in applications that require more sophisticated control, such as multi-stage dimming and complex lighting scenes. This makes the AL1794EV1 an ideal solution for lighting installations that require advanced control and monitoring.

Working Principle

The AL1794EV1 works by controlling the current supplied to an LED. The driver uses Pulse Width Modulation (PWM) to achieve accurate control and dimming of the LED channel. The PWM signal is generated by an external microcontroller or DSP unit, which sends a signal to the AL1794EV1 via I2C, DMX, or DALI control protocols. The LED current is regulated by the PWM signal, which is fed into the AL1794EV1 driver.

The AL1794EV1 driver can drive up to 16 individual LED channels, each with its own PWM signal. The driver can be configured to regulate the current on each of the 16 channels independently, allowing for individual control of the intensity of each LED. The driver also has an adjustable maximum current level, which can be adjusted to suit different types of LEDs and applications.

The AL1794EV1 also includes an on-board thermal protection circuit, which helps to protect the driver from high temperature conditions. In addition, the driver includes over-current, overtemperature, and under- or over-voltage protection, which help to protect the LEDs from damage. The combination of these features make the AL1794EV1 an ideal solution for long-term operation in harsh environments.

Conclusion

The AL1794EV1 is a versatile 16-channel LED driver that is designed to drive low to medium power LEDs in indoor and outdoor lighting applications. The driver has advanced current control and dimming capabilities, and is compatible with various control protocols, such as DMX, DALI, and I2C. It also features overcurrent, overtemperature, and under- or over-voltage protection, which help to ensure reliability and minimize energy consumption. The combination of these features make the AL1794EV1 an ideal solution for outdoor lighting applications.

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