ams TMD27723 Ambient Light Sensor

×

Description

The TMD2772 family of devices provides digital ambient light sensing (ALS), a complete proximity detection system, and digital interface logic in a single 8-pin surface mount module. The devices are register-set and pin-compatible with the TMD2771 family of devices and include new and improved ALS and proximity detection features. The ALS enhancements include a reduced gain mode that extends the operating range in sunlight. Proximity detection includes improved signal-to-noise performance and more accurate factory calibration. A proximity offset register allows compensation for optical system crosstalk between the IR LED and the sensor. To prevent false proximity data measurement readings, a proximity saturation indicator bit signals that the internal analog circuitry has reached saturation.

Details

Features

  • Integrated ALS, proximity sensor, and IR LED
  • ALS based on patented dual-diodes
  • 1M:1 dynamic range
  • Proximity detection calibrated and trimmed to provide consistent reading
  • Programmable LED drive current

Benefits

  • Module reduces board space and design effort
  • Enables operation in IR light environments
  • Allows accurate sensing behind spectrally distorting materials (e.g. dark glass)
  • Pre-calibration eliminates need for customer to calibrate the end-product
  • Allows multiple power level selection without external passives

Parameters

Function
ambient light sensing
proximity detection
Supply voltage
3.0 V
min.
2.6 V
max.
3.6 V
Interface
input
I²C slave (400kHz)
output
I²C slave (400kHz)
Operating ambient temperature
min.
-40 °C
max.
85 °C
Emitter quantity
1 integrated
Integrated diffuser
No
Package
Module
Package dimension
l
3.94 mm
w
2.36 mm
h
1.35 mm
Input/Output Voltage
1.8 V

Ordering codes

Product Type Description Order No. Availability
TMD27723

Downloads

Datasheets

Application note

Environmental documents

Lifecycle documents

Images