APDS9900 Digital Ambient Light Proximity Sensor Module
APDS9900 overview
APDS9900 Digital Ambient Light Proximity Sensor Module provides digital ambient light and proximity sensor (ALS), IR LED, and a complete proximity detection system in a single 8-pin package. The APDS9900 Digital Ambient Light Proximity Sensor Module function offers plug-and-play detection to 100 mm (without front glass) thus eliminating the need for factory calibration of the end equipment or sub-assembly. The APDS9900 Digital Ambient Light Proximity Sensor Module proximity detection feature operates well from bright sunlight to dark rooms. The wide dynamic range also allows for operation in short-distance detection behind dark glass such as a cell phone.
In addition, an internal state machine provides the ability to put the device into a low power mode in between ALS and proximity measurements providing very low average power consumption. APDS9900 Digital Ambient Light Proximity Sensor Module is particularly useful for display management with the purpose of extending battery life and providing optimum viewing in diverse lighting conditions. Display panel and keyboard backlighting can account for up to 30 to 40 percent of total platform power. The ALS features are ideal for use in notebook PCs, LCD monitors, flat-panel televisions, and cell phones.
Key specifications
APDS9900 features
- ALS, infrared LED, and near joint detector in the optical module
- Ambient brightness sensor (ALS)
- an approximation of the human eye’s visual response
- programmable interrupt function with upper and lower thresholds
- up to 16- bit resolution
- high sensitivity in the dark glass after the operation
- up to 1000000:1 dynamic range
- Proximity detection
- fully calibrated to 100 mm detection
- Integrated infrared LED and synchronous LED driver
- eliminate the close proximity of “factory calibration”
- 2000:1 dynamic range
- Programmable wait timer
- wait for state power – 70 A typical values
- programmable range of 2.72 MS to more than 6 seconds
- I2C compatible interface
- up to 400 kHz (I2C fast mode)
- dedicated interrupt pin
- 1.8V VBUS I2C interface
- Sleep mode power – 2.5 A typical values
APDS9900 pinout
| Name | Description |
|---|---|
| VCC | Power |
| GND | Ground |
| SDA | I2C Data |
| SCL | I2C Clock |
| INT | Interrupt |
APDS9900 specifications
| Attribute | Attribute Value |
|---|---|
| Manufacturer | Broadcom Limited |
| Product Category | Optical Sensors – Ambient Light, IR, UV Sensors |
| Packaging | Alternate Packaging |
| Series | |
| Type | Ambient |
| Wavelength | 620nm |
| Proximity Sensor | Yes |
| Output-Type | I2C |
| Voltage-Supply | 2.5 V ~ 3.6 V |
| Operating-Temperature | -30°C ~ 85°C |
| Mounting-Type | Surface Mount |
| Package-Case | 8-SMD, No Lead |
| Supplier-Device-Package | 8-SMD |
| Product | Integrated Ambient Light and Proximity Sensors |
| Mounting-Style | SMD/SMT |
| Peak-Wavelength | 850 nm |
| Maximum Operating Temperature | + 85 C |
| Operating temperature range | – 30 C |
| Fall-Time | 300 ns |
| Rise-Time | 1000 ns |
APDS9900 applications
- Adjustable light mobile phone backlight
- Notebook / display security
- automatically enabled hands-free mode
- An automatic menu pops up
- Digital camera eye sensor
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