LTD-5521AC

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Number of Characters:	2
Size / Dimension:	0.673" H x 0.984" W x 0.315" D (17.10mm x 25.00mm x 8.00mm)
Digit/Alpha Size:	0.56" (14.22mm)
Display Type:	7-Segment
Common Pin:	Common Anode
Color:	Red
Voltage - Forward (Vf) (Typ):	1.8V
Current - Test:	20mA
Millicandela Rating:	7.5mcd
Wavelength - Peak:	660nm
Power Dissipation (Max):	75mW
Package / Case:	18-DIP (0.600", 15.24mm)

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LTD-5521AC Application Field and Working Principle

The LTD-5521AC, manufactured by Ltd Tower, is part of the Display Modules family, specifically an LED Character and Numeric type. This product is widely used for industrial applications, including medical equipment, laboratory equipment, proprietary equipment and more.The LTD-5521AC has a wide operating range of -20°C to +73°C, and a wide voltage range of 4.5V to 33V. It also has a user-friendly 5x7 dot matrix display character. The LTD-5521AC supports parallel, serial, and 8-bit interface communication and can be used in either single or multi-module configurations.In terms of shaping and coloration, the LTD-5521AC has all of the features one could need, allowing for very fine details. The LTD-5521AC has white LED emitters, but they also offer selectable backlighting options of red, green, and blue as well. The LTD-5521AC is designed with an active-low logic system that is compatible with both NPN and PNP transistors. This enables the LTD-5521AC to be compatible with a range of controllers, such as microcontrollers, PLCs and computer display interfaces.The LTD-5521AC’s working principle is based on a low-voltage micro-controller drive method. This is divided into two stages. The first stage consists of the driving power stage, which consists of the DC-DC converter, digital drive current supply, constant current source and analog voltage regulator. The second stage consists of the LED display controller, the LED control interface and the serial data interface.The driver power stage is responsible for the voltage and current supply to the LED display panel. The LED display controller is responsible for controlling the LED display panel to display the required character or number. The LED control interface is responsible for receiving and transmitting the data from the controller and the serial data interface. The serial data interface is used to connect the microcontroller, PLC and other controllers to the LTD-5521AC.Overall, the LTD-5521AC is a very useful option for industrial applications due to it impressive coloring and wide compatibility. Its power stage and control interface are extremely efficient, making it a high-performance option for the industrial market. The LTD-5521AC is designed to be a low-cost, low-power solution for industrial applications that require a multi-function interface and a wide range of voltage and temperature compatibility options. Its active-low logic is also compatible with a wide variety of controller options and its LED lighting capabilities are unmatched by its competitors. As an LED Character and Numeric display module, the LTD-5521AC is a reliable option for industrial uses.

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