TLLG5401

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The TLLG5401 indicates state information in industrial or commercial applications. In these applications the TLLG5401 can replace traditional mechanical indicators. It has a compact construction: 5 mm wide, 4 pins and 35 mA at 20mA. It is a discrete solid state indicator and provides a quick way to indicate status in discrete applications like alarm applications, temperature services, etc. The TLLG5401 is a two-terminal LED emitter, designed to be interfaced directly to a microcontroller or a simple logic circuit.

The TLLG5401 also includes three versions: Red, Green and Bi-Color (Red + Green). Regardless of the version, it has a Vf of 2.4V and an If of 16mA (at a maximum supply voltage of 5.5V). It is a very low-power device that uses very little space inside the circuit. Moreover, it has a very fast response time of 15 microseconds.

Regarding its working principle, the TLLG5401 consists of two terminals, an anode and a cathode. The anode is usually applied to the 3.2V line while the cathode is applied to the logic inversion port. When the logic signal is low, the LED is off, and when the logic signal is high, the LED is turned on. This is the simplest operation. It can also be combined in complex circuits such as AND, NAND and OR, with the help of transistors and other components such as resistors or comparators.

The TLLG5401 can be used in a variety of LED indication applications, including logic state indication, temperature measurements, fault indicators, alarm circuits, security monitoring, and more. For example, in a door lock system, it can be used to activate the lock when the logic signal indicates that the door is opened. In a temperature control system, the TLLG5401 can be used to indicate when the temperature is above or below a certain threshold. It can also be used to replace high wattage lamps in applications such as signal box lighting.

The TLLG5401 has many advantages over traditional mechanical indicators. It is simpler and more reliable to use, and it consumes less power. Its low cost makes it ideal for general-purpose applications. In addition, it has a wide range of available colors and types, and it is also capable of working in both AC and DC circuits. Furthermore, it is hardwearing, making it a good choice for use in harsh environments.

To summarize, the TLLG5401 is a low-power, discrete LED indicator with a compact design. It is an ideal option for applications where an indication is required, such as logic state indication, temperature measurements, fault indicators, and alarm circuits. It is an affordable, easy-to-use, and reliable solution for those applications.

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