AA3020ASECK Optoelectronics

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LED Indication - Discrete

AA3020ASECK is an LED multiplexer IC from Taiwan Semiconductor that is designed for LED indication applications. It combines a two-channel LED mux with an LED current programming circuit and logic control input. This device is widely used in instruments, appliances, automotive, and healthcare applications. It is widely used to indicate the state, status, or level of a component, system, or a system process.

Features of AA3020ASECK

AA3020ASECK comes with a range of features that makes it a reliable LED indication IC. These key features include:• Ultra-low LED current consumption: The LED current consumption of this device is extremely low and only consumes 2.6mA when supplying maximum LED current of 20mA.• Low current draw: The total current draw from AA3020ASECK is lower than most similar devices, allowing for improved power efficiency and heat dissipation.• Programmable LED current: The LED current in AA3020ASECK can be programmed from 2.6mA to 20mA, providing flexibility for different lighting applications.• High temperature stability: AA3020ASECK is designed with a temperature stabilization circuit that provides stability between -40°C and +85°C.• 2-channel multiplexing: AA3020ASECK provides two-channel multiplexing capabilities, allowing for more compact designs.

Application Field of AA3020ASECK

AA3020ASECK is primarily used for LED indication purposes in a wide range of applications. It is used in automotive systems, instrumentation, healthcare applications, and in industrial applications.• Automotive systems: AA3020ASECK is used to indicate the status of a vehicle such as speed, level, fuel level, and temperature.• Instrumentation: AA3020ASECK is used in instrumentation systems to indicate meters, lighting, and system levels.• Healthcare applications: AA3020ASECK is used for medical imaging and laboratory systems to indicate the levels or statuses of the system.• Industrial applications: AA3020ASECK is used in industrial systems, such as HVAC, to indicate various levels of power, temperature, and motion.

Working Principle of AA3020ASECK

AA3020ASECK is a two channel LED mux with an LED current programming circuit and logic control input. The LED multiplexing circuit of this IC allows for two separate LED control channels. This means that two LED channels can be controlled separately with different scrolling speed, lighting effect, and adjustment.The LED current of this device is adjustable, with the level being programmed by an external voltage applied to the REFC pin. A logic control input is provided to turn off or turn on the LEDs. When the logic input is pulled low, the LED current is shut off. When the logic input is pulled high, the current is enabled. This enables various levels of control for the LED indication device.The temperature stability of AA3020ASECK is achieved through a temperature stabilization circuit. This circuit compensates for input voltage variations due to temperature variations and provides a stable output even in extreme temperatures.Overall, AA3020ASECK is a reliable and versatile LED multiplexer and indicator IC that is well suited for a wide range of applications. It is low power consuming and provides excellent temperature stability and control, making it suitable for a variety of applications.

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