SFH7779 datasheet(7/42 Pages) AMSCO

Part #	SFH7779

Description	Ambient Light and Proximity Sensor with Integrated 940nm IR Emitter

PDF	42 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

Logo

7 / 42 page

SFH 7779

DATASHEET

7 | Version 1.7 | 2023-05-24

Measurement modes

Mode

Description

OFF

The device is inactive. Other units may use the I2C bus without any restrictions; I/O pins and INT are in high Z

state. There is no sink current through the LED

STAND-BY

This is the initial mode after power-up. IDD is typ. 0.8µA. No measurement is performed. Device can be

activated by I2C bus communication. Data registers can be read and written.

ALS / PS free

running

Measurements are triggered internally by the SFH 7779. Stand-by / active mode for ALS and PS,

measurement times, interrupt options and LED current can be adjusted via I2C register. Measurement results

can be read from the data register, the status from the interrupt register

If VDD exceeds the threshold voltage, the sensor will switch from OFF mode to STAND-By mode. As shown in the

transition-diagram above it is possible to switch between all modes without any restriction.

SFH7779 Datasheet(PDF) 7 Page - ams AG