AL8808EV2

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Evaluation Boards - LED Drivers

The AL8808EV2 is an application-specific integrated circuit designed to drive seven channels of LEDs. It is designed to be used in systems that need to illuminate large areas with high efficiency and extreme brightness. AL8808EV2 is developed for applications like TV monitors and projection displays, but can also be used for applications in lighting.

Application Field

The AL8808EV2 is used in a variety of fields, from consumer-electronics applications to automotive applications. It can be used for lighting, TV displays, automotive displays, projection displays, and projection bulbs. It can be particularly useful for applications demanding superior brightness, such as high-ambient-light conditions and the automotive inner cabin. The AL8808EV2 features up to seven channels of brightness control, which can be used to create distinct digital effects and adjust the contrast of the display.

Working Principle

The AL8808EV2 operates by taking in a voltage source, current, and reference voltage. The voltage source powers the LED drivers, while the current adjusts the LED channels. The reference voltage is then used to control the LED channels, allowing them to be independently dimmed and regulated according to the determined reference voltage. The LED drivers can handle currents up to 300 mA and reference voltages up to 3.3 V. The AL8808EV2 utilizes pulse-width modulation (PWM) to dim the LEDs at reasonable levels.

The AL8808EV2 also uses a light-sensing feature to detect ambient light, which helps it adjust brightness accordingly. This feature is useful for applications where the brightness may need to be adjusted quickly in reaction to changing ambient light. The LED channels can also be operated through a dimming system, so that each LED can be adjusted individually. This makes it possible to create unique lighting effects or achieve higher brightness quicker than with a single LED.

The application-specific integrated circuit also offers multiple-bits protection, including over-temperature protection, over-current protection, reverse polarity protection, and soft start-up. All these features help prevent malfunction, damage, and safety risks commonly associated with LED drivers.

Conclusion

In conclusion, the AL8808EV2 is a powerful integrated circuit designed to drive several channels of LEDs with higher efficiency and maximum brightness. It is suitable for a wide range of applications, from consumer electronics to automotive lighting. The AL8808EV2 offers enhanced protection against malfunction and physical damage, making it one of the most reliable LED drivers on the market. The application-specific integrated circuit is available at competitive prices and can provide cost savings for any lighting or TV display project.

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