AA3528SESK/J4 Optoelectronics

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LED Indication - Discrete

Discrete LED indication is a type of LED technology used for LEDs that are individually mounted on the printed circuit board in order to provide indication of an action or event, such as an input switch being pressed. In many cases, discrete LEDs are used to provide simple visual feedback to the user in order to indicate that a specific action has occurred. This type of LED technology can be found in a wide variety of products, ranging from simple arming and disarming systems to complex electronic equipment.

The AA3528SESK/J4 (known as the AA3528) is a type of high-current multiplexed discrete LED indicator, designed for utilization in space-constrained environments. This type of LED offers users a 20mA direct drive, which is ideal for low-power applications with multiple LED indicators. This LED offers an impressive range of features, including both low-side switching and sinking driver configurations, as well as the ability to be controlled with a microcontroller or another power device.

AA3528 Application Field and Working Principle

The AA3528SESK/J4 is designed primarily for industrial applications, including control panels, switch boxes, safety light curtains, and memory boards. This LED can be used as either a momentary or continuous indication, depending on the type of application. It is available in a variety of colors, including yellow, red, green, and white.

The AA3528 has a variety of mounting configurations, including thru-hole, panel mount, and PCB mount. The thru-hole mounts are designed for use in a wire wrap or solder mount application. Panel mount LEDs are designed to be mounted flush against a panel, while PCB mount LEDs are designed to be integrated directly into a printed circuit board. This LED also offers double-row pinouts and electrical clamping, making it more suited for higher voltage applications.

The AA3528 has two primary modes of operation. The first mode is the standard high-side switching operation. When in this mode, the LED is powered by a constant voltage, and the user has control over the current passing through the LED, allowing for more precise control. The second mode is low-side switching, which is activated by a constant current, and allows for more efficient operation of the LED.

The AA3528 also offers a range of indicator states, including off, steady, and blinking. This gives the user a greater range of control over the LED’s appearance. The individual LEDs can also be programmed to change colors or brightness at predetermined times. This makes the AA3528 an ideal choice for applications that require changing LED behavior.

In addition to the various states and modes of operation, the AA3528 also offers an operating temperature range of -40°C to 85°C, as well as a storage temperature range of -55°C to 105°C. This makes the LED suitable for a wide range of industrial applications.

Overall, the AA3528 is a versatile and robust LED indication solution, capable of meeting the needs of a variety of industrial applications. Its ability to be programmed, to switch between modes and indicators, and its wide range of operating temperatures make the AA3528 a great choice for customers looking for reliable LED indication.

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