The TEMT6000 is a high-sensitivity ambient light sensor designed to detect visible light with a spectral response that closely matches the human eye. Unlike basic photoresistors (LDRs), this silicon NPN epitaxial planar phototransistor provides a more linear and reliable analog output, making it ideal for applications requiring accurate brightness detection in electronic devices.

Specifications

• Sensor Type: NPN Silicon Phototransistor
• Supply Voltage: 3.3V to 5V DC
• Peak Sensitivity Wavelength: 570 nm (Visible Light)
• Current Gain: High sensitivity for low-light detection
• Output Type: Analog Voltage (Proportional to light intensity)
• Collector-Emitter Voltage (V_CEO): 6V
• Angle of Half Sensitivity: ±60 degrees
• Operating Temperature: -40°C to 85°C

Features

• Human Eye Simulation: Specially adapted to the human eye's spectral sensitivity, ensuring that the sensor "sees" light intensity exactly as a person would.
• Linear Analog Output: Provides a steady voltage output that increases linearly with the amount of light detected, simplifying the interface with Analog-to-Digital Converters (ADCs).
• High Sensitivity: Capable of detecting subtle changes in ambient light, even in low-light environments, surpassing the performance of standard cadmium-sulphide (CdS) cells.
• Minimal Infrared Interference: Designed to be primarily sensitive to the visible spectrum, significantly reducing errors caused by infrared radiation from remotes or heaters.
• Compact SMD Integration: Typically mounted on a small breakout board with an integrated current-limiting resistor, allowing for direct connection to microcontrollers like Arduino or ESP32.
• Lead-Free/RoHS Compliant: Built using environmentally friendly materials and processes.

Common Applications

• Automatic backlight dimming for LCD displays, keyboards, and mobile devices.
• Smart lighting systems for energy-saving street lamps and indoor corridors.
• Ambient light detection for smart home hubs and weather stations.
• Contrast and brightness control for industrial monitors and automotive dashboards.