VAOL-3GRE4 Optoelectronics

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LEDs have become omnipresent in our lives, from street lighting to computer displays, from phone charging cables to power bank indicators. In addition, quite a few products require specific LED indicators, either for functionality or to meet user experience and design objectives. One such example is the VAOL-3GRE4 LED indicator.

Working Principle of VAOL-3GRE4

The VAOL-3GRE4 is an LED indicator designed for discrete signaling and communicates via an open-drain architecture. The line is pulled low to enable and pull high to disable the indicator. It is triggered by the voltage source between 0.8V and 3.0V, with an average voltage of 1.7V. In order to ensure the reliable operation of the indicator a pull-down resistor of 1.1kΩ must be connected between the signal line and ground.

When the indicator is idle, its current is extremely low, about 0.1uA. When activated, it will draw up to 15mA. When the voltage drops below the switching threshold, the indicator will turn off and draw no current.

Applications of VAOL-3GRE4

The VAOL-3GRE4 is commonly used in applications such as automotive, industrial, network and IoT device synchronization, USB charging, fan and pump control, automotive warning signals, industrial control panels, audio and video equipment, as well as a host of other applications. In all of these applications the reliable signaling of the VAOL-3GRE4 ensure that parts of a system are correctly coordinated and that instructions are successfully issued.

The VAOL-3GRE4 is also popular because of its wide operating temperature range of -40°C to 70°C and its good thermal resistance of only 0.86°C/W. In addition, its high contrast ratio means it can easily be seen in most lighting conditions.

Conclusion

VAOL-3GRE4 is a popular LED indicator for discrete signaling. It requires a voltage source between 0.8V and 3.0V and draws up to 15mA when activated. Common applications for the VAOL-3GRE4 include automotive, industrial, network and IoT device synchronization, USB charging, fan and pump control, automotive warning signals, and industrial control panels. In addition, its wide operating temperature range of -40°C to 70°C, good thermal resistance of 0.86°C/W and high contrast ratio make it a suitable choice for an array of applications.

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