RE46C117S8TF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Horn Driver
Input Type:	Logic
Output Type:	Logic
Interface:	--
Current - Supply:	14µA
Operating Temperature:	0°C ~ 50°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	RE46C117

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RE46C117S8TF Application Field and Working Principle

The RE46C117S8TF is an ambient light sensor that uses four separate photo detectors to detect incident light from all directions and return analog output directly without elaborate signal conditioning. This ambient light sensor is also known as “Swipe Sensor” because it produces a true representation of the light even in low light conditions.

Application Fields

RE46C117S8TF sensor is widely used for automatic interior lighting in automobiles, home and other indoor environment lighting control, LCD backlighting and intensity control, and projectors. This ambient light sensor is also used to detect the intensity of light outdoors for security and intelligent systems. The wide range of its detection limit makes this ambient light sensor suitable in almost every environment.

Working Principle

RE46C117S8TF ambient light sensor works based on photodiodes. It absorbs the ambient light to generate an electrical charge. This charge is then transferred to a transimpedance amplifier where it is converted into a current signal. The output of the transimpedance amplifier is then passed to a signal conditioning circuit to generate a linear output voltage proportional to the incident light. The signal conditioning circuit also includes a temperature compensation circuit to provide more accuracy in a wide range of temperatures.The RE46C117S8TF ambient light sensor is a four-detector device, consisting of four independent photo detectors mounted in the package. Each photo detector is connected to a corresponding transimpedance amplifier. The outputs of the transimpedance amplifiers are then connected in series so that their outputs are added together. The output of the signal conditioning circuit is then generated based on the combined output of the transimpedance amplifiers.The RE46C117S8TF ambient light sensor uses a Non-Contact Excitation (NCE) method to detect light. The NCE method utilizes a non-contact excitation source to provide a light stimulus to the photo detectors without any physical contact. This method offers higher sensitivity and accuracy of the detected light signal. Moreover, this ambient light sensor has low power consumption and built-in low noise rejection. This ensures a clean and accurate signal output even in low light conditions. The low power consumption of this ambient light sensor makes it ideal for battery-powered applications. In addition, this light sensor has a high shock and vibration resistance which makes it suitable for use in hostile environments. In conclusion, the RE46C117S8TF ambient light sensor is an excellent choice for applications that require high accuracy and precision in light detection. This light sensor is highly reliable and robust, making it perfect for applications where reliability is a must. This light sensor is also very cost-effective, making it an ideal choice for budget-conscious users.

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