TSL2671（Proximity Detection ）

Overview：

The TSL2671 family of devices provides a complete proximity detection system and digital interface logic in a single 6-pin package. The device includes a digital proximity sensor with integrated LED driver for the required external IR LED. The proximity function offers a wide range of performance, with four programmable LED drive currents and a pulse repetition range of 1 to 32 pulses. The proximity detection circuitry compensates for ambient light, allowing it to operate in environments ranging from bright sunlight to dark rooms. This wide dynamic range also allows operation in short-distance detection applications behind dark glass, such as cell phones. An internal state machine provides the ability to put the device a low-power mode for very low average power consumption.

Product Features:

Proximity Detection with an Integrated LED Driver in a Single Device

Proximity Detection
− Programmable Number of IR Pulses
− Programmable Current Sink for the IR LED — No Limiting Resistor Needed
− Programmable Interrupt Function with Upper and Lower Threshold
− Covers a 2000:1 Dynamic Range

Programmable Wait Timer
− Programmable from 2.72 ms to > 8 Seconds
− Wait State — 65 uA Typical Current

I²C Interface Compatible
− Up to 400 kHz (I²C Fast Mode)
− Dedicated Interrupt Pin

Small 2 mm x 2 mm ODFN Package

Sleep Mode — 2.5 uA Typical Current

Specifications:	Details:
Temperature Range(Celcius):	Min:-30 Max:70
Voltage Range:	Min:2.7 Max:3.6

Downloads：

TSL2671