TSL25723FN Sensors, Transducers

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Optical sensors are often used in a variety of applications, ranging from industrial monitoring and control to consumer use in lighting control and consumer electronics. The TSL25723FN sensor from Texas Advanced Optoelectronic Solutions (TAOS) is a digital ambient and infrared light sensor specifically designed to detect both visible light and infrared wavelengths. This article will provide an overview of the applications enabled by the TSL25723FN and its working principle.

TSL25723FN Application Field

The TSL25723FN is an ambient light and infrared (IR) sensor used mainly for display and consumer electronics applications. Due to its low power consumption and low overall system cost, the TSL25723FN is particularly well-suited for the mobile and computing markets. The sensor’s small package size (3mm x 3mm) and its integrated optical filter makes it ideal for use in tightly-packed spaces and low-profile applications.

The TSL25723FN can be used in a variety of applications, including mobile phones, Portable media players (PMP) and Digital photo frames. It is also used in ambient light sensing (ALS) applications such as lighting control, display brightness control and energy management. Other potential uses include optical gesture recognition, advanced camera control and facial recognition.

The TSL25723FN is suitable for both indoor and outdoor applications. It provides a combination of a high dynamic range and a fast response time, which makes it well suited to detect both ambient light and IR signals from artificial and natural sources. As the TSL25723FN can accurately measure illumination levels from 0.3 lux up to to 62 klux, it can be used in a variety of lighting and display control applications.

TSL25723FN Working Principle

The TSL25723FN is a digital ambient and infrared light sensor with a digital output that is configured with logic outputs and I2C communications. The sensor works by combining a silicon photodiode and an RGB color filter that is sensitive to wavelengths between 400nm-655nm. The integrated optical filter helps to reduce glare and distortion caused by neighboring optical sources.

When ambient light of sufficient intensity is detected, the TSL25723FN will output a logic high signal when enabled. Additionally, the TSL25723FN has an integrated timer, which utilizes a flip-flop latch circuit to detect a change in illumination levels when the light source is dimmed for a predetermined time. This timer feature helps to reduce power consumption when changing light levels.

The TSL25723FN works by responding to a variety of illumination sources, including natural daylight and artificial sources such as LED and fluorescent lights. When the TSL25723FN detects a change in illuminance, either from a light source being turned on or off, its output will toggle between high and low. Additionally, the TSL25723FN has a configurable threshold which can be used to adjust the sensitivity of the sensor, further improving its accuracy.

Conclusion

The TSL25723FN from TAOS is a versatile ambient and IR light sensor that can be used for a variety of applications, including display and consumer electronics as well as lighting control. Its integrated optical filter and timer help improve accuracy while reducing power consumption. Its fast response time and high dynamic range make it suitable for both indoor and outdoor applications.

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