Rainbow-electronics MAX9635 User Manual download pdf

_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Industry’s Lowest-Power

Ambient Light Sensor with ADC

MAX9635

19-5284; Rev 0; 8/10

General Description

The MAX9635 ambient light sensor features an I

C digi-

tal output that is ideal for a number of portable applica-

tions such as smartphones, notebooks, and industrial

sensors. At less than 1µA operating current, it is the

lowest power ambient light sensor in the industry and

features an ultra-wide 22-bit dynamic range from 0.045

lux to 188,000 lux.

Low-light operation allows easy operation in dark glass

applications.

The on-chip photodiode’s spectral response is optimized

to mimic the human eye’s perception of ambient light

and incorporates IR and UV blocking capability. The

adaptive gain block automatically selects the correct lux

range to optimize the counts/lux.

The IC is designed to operate from a 1.7V to 3.6V sup-

ply voltage range and consumes only 0.65µA in full

operation. It is available in a small, 2mm x 2mm x 0.6mm

UTDFN-Opto package.

Applications

Tablet PCs/Notebook Computers

TVs/Projectors/Displays

Digital Lighting Management

Portable Devices

Cellular Phones/Smartphones

Security Systems

Features

S Wide 0.045 Lux to 188,000 Lux Range

S Small, 2mm x 2mm x 0.6mm UTDFN-Opto

S V

= 1.7V to 3.6V

S I

= 0.65µA Operating Current

S -40 NC to +85NC Temperature Range

Ordering Information

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

Block Diagram

EVALUATION

KIT

AVAILABLE

PART PIN-PACKAGE TEMP RANGE

MAX9635EDT+ 6 UTDFN-Opto-EP*

-40NC to +85NC

DIGITAL

SIGNAL

PROCESSING

6-BIT RANGE

CDR, TIM

CONTROL

VISIBLE +IR

PHOTODIODE

MAX9635

GND

SCL

SDA

INT

16-BIT

ADC

16-BIT

ADC

ABRIDGED

ABRIDGED 1

Summary of Contents

Page 1 - ABRIDGED

_______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and ordering information, pleas

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Rainbow-electronics MAX9635 User Manual

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