TSL26721 datasheet(2/47 Pages) OSRAM

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[v1-01] 2019-Nov-20

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TSL2672

Digital Proximity Detector

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

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.

Ordering Information and Content Guide appear at end of

datasheet.

Key Benefits & Features

The benefits and features of TSL2672, Digital Proximity Detector

are listed below:

Figure 1:

Added Value Of Using TSL2672

• Proximity Detection with an Integrated LED Driver in a

Single Device

• Register Set- and Pin-Compatible with the TSL2x71 Series

• Proximity Detection

• Reduced Proximity Count Variation

• Programmable Offset Control Register

•Saturation Indicator

• Programmable Analog Gain and Integration Time

• Current Sink Driver for External IR LED

• 16,000:1 Dynamic Range

Benefits

Features

• Enables Operation in IR Light Environments

• Patented Dual-Diode Architecture

• Eliminates IR LED System Cross Talk

• Programmable Proximity Offset Adjustment

• Prevents False Proximity Detection in Bright Light

• Proximity Saturation Indicator Bit

• Allows Multiple Power-level Selection without

External Passives

• Programmable LED Drive Current

General Description

TSL26721 数据表(PDF) 2 Page - OSRAM GmbH

TSL26721 数据表(HTML) 2 Page - OSRAM GmbH

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