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The MAX44009EDT+T is an ambient light sensor (ALS) from Maxim Integrated (now part of Analog Devices).

Specifications:

• Manufacturer: Maxim Integrated (Analog Devices)
• Part Number: MAX44009EDT+T
• Package: 6-Pin TDFN (2mm x 2mm)
• Interface: I²C (up to 400kHz)
• Supply Voltage: 1.7V to 3.6V
• Operating Current: 0.65µA (typical)
• Lux Range: 0.045 lux to 188,000 lux (automatically scales)
• Resolution: 0.018 lux/step (low range)
• ADC Resolution: 16-bit digital output
• Operating Temperature Range: -40°C to +85°C
• Light Sensor Type: Photodiode-based

Descriptions:

The MAX44009EDT+T is a low-power ambient light sensor with an I²C digital interface. It features an integrated photodiode and signal conditioning IC, providing accurate light intensity measurements across a wide dynamic range. The device automatically adjusts its sensitivity to optimize performance in varying lighting conditions.

Features:

• Ultra-low power consumption (0.65µA typical)
• No external components required
• Automatic full-scale selection (0.045 lux to 188,000 lux)
• 16-bit digital output with high resolution
• I²C-compatible interface (up to 400kHz)
• Small 6-pin TDFN package (2mm x 2mm)
• Wide operating voltage range (1.7V to 3.6V)
• -40°C to +85°C temperature range

This sensor is commonly used in smartphones, tablets, displays, and IoT devices for automatic brightness adjustment and ambient light detection.