TMD27721 datasheet(46/60 Pages) OSRAM

Part #	TMD27721

Description	Digital ALS and Proximity Module

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	OSRAM [OSRAM GmbH]

Direct Link	http://www.osram.com

Logo

46 / 60 page

ams Datasheet

Page 45

[v1-21] 2016-Feb-16

Document Feedback

TMD2772/ TMD2772WA − Application Information

Figure 50:

Proximity Sensing Using Single Power Supply

VBUS in the above figures refers to the I²C bus voltage which is

either VDD or 1.8V. Be sure to apply the specified I²C bus voltage

shown in the Available Options table for the specific device

being used.

The I²C signals and the Interrupt are open-drain outputs and

require pull-up resistors. The pull-up resistor (RP) value is a

function of the I²C bus speed, the I²C bus voltage, and the

capacitive load. The ams EVM running at 400 kbps, uses 1.5kΩ

resistors. A 10kΩ pull-up resistor (RPI) can be used for the

interrupt line.

1µF

VBUS

RPI

1µF

Voltage

Regulator

Per

regulator

datasheet

TMD2772

TMD2772WA

VDD

GND

LDR

INT

SCL

SDA

LEDA

LEDK

TMD27721 Datasheet(PDF) 46 Page - OSRAM GmbH