CJMCU-88 TMD27713 IRLED + ALS + PROXIMITY Ambient Light Sensing Proximity Detection Module
  • CJMCU-88 TMD27713 IRLED + ALS + PROXIMITY Ambient Light Sensing Proximity Detection Module

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CJMCU-88 TMD27713 IRLED + ALS + PROXIMITY Ambient Light Sensing Proximity Detection Module

Description
- The TMD2771 family of devices provides digital ambient light sensing (ALS), a complete proximity detection system, and digital interface logic in a single 8-pin package. The proximity detector includes a digital proximity sensor, LED driver, and IR LED, which are trimmed to eliminate the need for end-equipment calibration due to component variations. Excellent background light rejection allows the device to operate in environments from sunlight to dark rooms. The wide dynamic range allows for operation in short distance detection such as a cell
phone (behind dark glass). 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.
- The device 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.
- The proximity function specifically targets near-field proximity applications. In cell phones, the proximity detection can detect when the user positions the phone close to their ear. The device is fast enough to provide proximity information at a high repetition rate needed when answering a phone call. This provides both improved green power saving capability and the added security to lock the computer when the user is not present. The addition of the micro-optics lenses within the device, provide highly efficient transmission and reception of infrared energy, which lowers overall power dissipation.

Features
- Ambient Light Sensing, Proximity Detection, and IR LED in a Single OpticalModule
-  Ambient Light Sensing (ALS)
− Approximates Human Eye Response
− Programmable Analog Gain
− Programmable Integration Time
− Programmable Interrupt Function with
Upper and Lower Threshold
− Up to 16 Bits Resolution
− Very High Sensitivity Operates Behind
Darkened Glass
− Up to 1,000,000:1 Dynamic Range
 Proximity Detection
− Calibrated to 100-mm Detection
− Eliminates Factory Calibration of Prox
− Programmable Number of IR Pulses
− Programmable Current Sink for the IR
- LED No Limiting Resistor Needed
− Programmable Interrupt Function with
- Upper and Lower Threshold
- Programmable Wait Timer
− Wait State 65 A Typical Current
− Programmable from 2.72 ms

Data sheet download

 Package inlcuded:

- 1 x CJMCU-88 TMD27713 sensor module
 

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