ams TSL26721

Discontinued
×
Discontinued

Description

The TSL2672 family of devices provides proximity detection when coupled with an external IR LED. The devices incorporate a constant-current LED sink driver to pulse the external IR LED and achieve very low average power consumption using the low power wait state with programmable wait time between proximity measurements. In addition, the devices are register-set and pin-compatible with the TSL2671 series and include a number of new and improved features, such as improved signal-to-noise and measurement accuracy. A proximity offset register allows compensation for optical system crosstalk between the IR LED and the sensor. To prevent false measurements, a proximity saturation bit indicates that the internal analog circuitry saturated. Interrupts have been enhanced with the addition of a sleep-after-interrupt feature that also allows for single-cycle operation.

Details

Features

  • Patented dual-diode architecture
  • Programmable proximity offset adjustment
  • Proximity saturation indicator bit
  • Programmable LED drive current

Benefits

  • Enables operation in IR light environments
  • Eliminates IR LED system cross talk
  • Prevents false proximity detection in bright light
  • Allows multiple power level selection without external passives

Parameters

Function
proximity detection
Supply voltage
3.0 V
min.
2.4 V
max.
3.6 V
Interface
input
I²C slave (400kHz)
output
I²C slave (400kHz)
Operating ambient temperature
min.
-30 °C
max.
70 °C
Emitter quantity
external
Integrated diffuser
No
Package
FN
Package dimension
l
2.0 mm
w
2.0 mm
h
0.65 mm
Input/Output Voltage
VDD

Downloads

Datasheets

Datasheet

Application note

Technical documents

Lifecycle documents

Images