Optical Sensor Ambient I2C 6-UDFN Exposed Pad ## Engineering Specification ## General Description The **MAX44009EDT+T** is an Analog Devices / Maxim Integrated digital ambient light sensor designed for portable electronics, display brightness control, industrial sensors, embedded systems, and low-power optical sensing applications. It integrates an ambient light photodiode, signal conditioning, analog-to-digital conversion, and an I²C digital output interface in a compact surface-mount package. The device is suitable for systems requiring automatic brightness adjustment, low current consumption, and light measurement behavior that closely follows human-eye response. ## Device Identification Manufacturer Part Number: **MAX44009EDT+T** Manufacturer: **Analog Devices / Maxim Integrated** Product Series: **MAX44009** Device Category: **Sensor Integrated Circuit** Device Type: **Digital Ambient Light Sensor** Sensor Interface: **I²C Digital Output** Mounting Type: **Surface Mount** Package Type: **UTDFN-Opto / UDFN** ## Functional Description The device functions as a digital ambient light sensor that measures surrounding light intensity and reports the measurement through an I²C interface. It is designed to help electronic systems adjust display brightness, conserve power, improve user visibility, and respond to changes in lighting conditions. The integrated optical sensing and digital conversion circuitry reduce the need for external analog signal-conditioning components. ## Optical Sensing Description The sensor includes an on-chip photodiode with spectral response optimized to approximate human-eye sensitivity. It also incorporates infrared and ultraviolet blocking capability to improve ambient light measurement accuracy. The adaptive gain function automatically selects the appropriate measurement range, allowing the device to operate across very low-light and bright-light conditions. ## Electrical Description The **MAX44009EDT+T** operates from a low-voltage supply range and is optimized for ultra-low power consumption. It supports digital communication through an I²C interface and is suitable for battery-powered and energy-sensitive systems. Proper supply decoupling, pull-up resistor selection, and bus voltage compatibility should be considered during circuit design. ## Package and Mechanical Description The component is supplied in a compact surface-mount optical package suitable for space-constrained printed circuit board designs. The package is intended for placement where the optical sensing window has access to ambient light while maintaining proper mechanical protection from contamination, shadowing, and enclosure obstruction. ## Interface and Control Description The device communicates with a host microcontroller or processor through an I²C digital interface. The host can read ambient light data and configure device behavior through register-based communication. The selectable I²C addressing feature supports flexible integration in systems that may include multiple I²C peripherals. ## Mounting and Assembly Description The **MAX44009EDT+T** is intended for surface-mount PCB assembly using standard reflow soldering processes. PCB layout should follow the manufacturer’s recommended footprint and assembly guidance. The optical sensing area should remain unobstructed, clean, and aligned with the product enclosure opening or light pipe when used. ## Application Suitability The device is suitable for smartphones, tablets, notebooks, wearable electronics, handheld devices, display brightness control, industrial light sensing, smart home devices, battery-powered equipment, sensor modules, and embedded systems requiring digital ambient light detection. ## Design Considerations The design should account for sensor placement, optical window design, enclosure transparency, light pipe geometry, I²C bus pull-up values, supply voltage compatibility, ambient interference, temperature conditions, and contamination protection. The sensor should not be blocked by opaque materials or placed where shadows, reflections, or nearby LEDs may distort the measured ambient light level. ## Hashtags #commonpartslibrary #integratedcircuit #sensor #ambientlightsensor #digitalsensor #opticalsensor #analogdevices #maximintegrated #max44009 #max44009edt #i2csensor #lightmeasurement #brightnesscontrol #lowpowersensor #portableelectronics #displaycontrol #embeddedhardware #embeddeddesign #smdcomponent #surfacemount #utdfnpackage #uDFNpackage #pcbdesign #hardwaredesign #electronicscomponents #electronicparts #componentlibrary #engineeringparts #electronicsengineering

11-Channel Spectral Sensor Frontend The AS7341-DLGM is a multi-channel spectral sensor developed by ams OSRAM, designed for advanced color measurement, spectral analysis, and ambient light sensing applications. The device integrates multiple optical channels covering visible and near-infrared wavelengths, enabling precise detection of light characteristics across a broad spectrum. Its compact surface-mount package, integrated analog front-end, and digital processing capabilities make it suitable for consumer electronics, industrial instrumentation, smart lighting systems, display calibration, agricultural sensing, and portable analytical devices. The sensor features highly sensitive photodiodes combined with optical filters that allow accurate spectral discrimination. Communication is performed through a standard digital interface, facilitating integration with microcontrollers, embedded systems, and IoT platforms. The AS7341 supports configurable measurement modes, programmable gain control, and interrupt functions for efficient system-level implementation. Key Features Multi-channel spectral sensing architecture Visible and near-infrared light detection capability Integrated optical interference filters High-sensitivity photodiode array Ambient light sensing functionality Advanced color measurement and analysis Programmable gain and integration settings Digital output with I²C communication interface Low-power operating characteristics Integrated interrupt and event detection functions Compact surface-mount package Suitable for portable and battery-powered designs High accuracy across varying lighting conditions Supports spectral identification and classification applications Optimized for display, lighting, and environmental monitoring systems Applications Color measurement instruments Spectral analysis equipment Smart lighting control systems Display color calibration Industrial automation sensors Agricultural monitoring devices Ambient light sensing applications Consumer electronics Wearable devices IoT sensing platforms Scientific and laboratory instruments Optical monitoring systems Electrical and Functional Characteristics Multi-channel optical sensing engine Digital signal processing architecture Configurable integration timing Adjustable sensitivity and gain control Low-noise measurement performance High dynamic range operation Fast measurement response capability Integrated spectral filtering technology Embedded register-based configuration Interrupt-driven event monitoring support Mechanical Characteristics Compact surface-mount package PCB-friendly footprint RoHS-compliant construction Suitable for automated assembly processes Optimized optical window design #commonpartslibrary #sensor #opticalsensor #spectralsensor #colorsensor #ambientlightsensor #amsosram #embeddedsystems #industrialelectronics #iot #measurement #environmentalsensing #consumerelectronics #smartlighting #electronicsdesign

Ambient Light Sensors TCS34725FN SENSOR-SMD_TCS34725FN LCSC Part Number: C2649487 JLCPCB Part Class: Extended Part Manufactured by ams(艾迈斯半导体) TCS3472 color sensor, TCS34725 color sensor, TCS3472 RGB sensor, TCS34725 RGB light sensor, TCS3472 RGBC sensor, TCS34725 RGBC sensor, TCS3472 ambient light sensor, TCS34725 ambient light sensor, RGB clear light sensor, color light-to-digital converter, I2C color sensor, color sensor with IR blocking filter, AMS TCS3472, AMS TCS34725, ams OSRAM TCS34725, TCS34725FN, TCS3472FN #TCS3472 #TCS34725 #TCS34725FN #AMS #AMSOSRAM #ColorSensor #RGBSensor #RGBCSensor #AmbientLightSensor #LightToDigitalConverter #I2CSensor #IRBlockingFilter #OpticalSensor #ColorDetectionSensor

Optical Sensor 8-DIP Module #CommonPartsLibrary #Sensor #Transducer #Optical-Sensor #Ambient-Light #IR #UV #Sensor

Optical Sensor 0.047" (1.2mm) Phototransistor Slotted Module #CommonPartsLibrary #Sensor #Transducer #Optical-Sensor #Photointerrupter #RPI-125

Optical Sensor IR 5000nm ~ 20000nm I2C, SPI 10-LFDFN #CommonPartsLibrary #Sensor #Transducer #Optical-Sensor #Ambient-Light #IR #UV-Sensor

Optical Sensor Ultraviolet (UV) 330nm, 365nm I²C 4-TFLGA #commonpartslibrary #sensor #opticalsensor #ultraviolet

Optical Sensor Ambient 560nm I2C 8-SMD Module #commonpartslibrary #integratedcircuit #opticalsensor

Optical Sensor Ambient, Ultraviolet (UV) 850nm I2C 10-WFQFN #CommonPartsLibrary #IntegratedCircuit #Sensor #Transducer #Optical-Sensor #Ambient-Light #IR #UV-Sensor

CMOS with Processor Image Sensor 1296H x 976V 1.9µm x 1.9µm 55-ODCSP (4.65x3.85) #CommonPartsLibrary #Sensor #Transducer #Optical-Sensor #Image-Sensor #Camera #MT9M114

Optical Sensor 0 ~ 24.41" (0 ~ 62cm) I²C Output #CommonPartsLibrary #Sensor #Transducer #Optical-Sensor #Distance-Measuring #VL6180

Optical Sensor 5cm Digital Output #opticalSensor #digital #part

Optical Sensor IR 850nm I²C 8-SMD Module #opticalSensor #IR #I2C #part

Optical Sensor 5cm Digital Output #opticalSensor #digital #part

Optical Sensor Ultraviolet (UV) I²C 6-WFDFN #OpticalSensor #I2C #part

Optical Sensor IR 850nm I²C 8-SMD Module #opticalSensor #IR #I2C #part

Photodiode 620nm 120° 0805 (2012 Metric) #commonpartslibrary #sensor #Opticalsensor

Optical Sensor Ambient 550nm I²C 10-SMD, No Lead #CommonPartsLibrary #Sensor #Transducer #OpticalSensor #AmbientLight #IR #UV

Optical Sensor Ambient 550nm I²C 8-SMD Module #CommonPartsLibrary #Sensor #Transducer #OpticalSensor #AmbientLight #IR #UV

Optical Sensor Ambient I²C 10-SMD, No Lead #CommonPartsLibrary #Sensor #Transducer #OpticalSensor #AmbientLight #IR #UVSensor

Optical Sensor Ambient I²C 10-VDFN #CommonPartsLibrary #Sensor #Transducer #OpticalSensor #AmbientLight #IR #UVSensor