MAX44000GDT+T Maxim Integrated Products, MAX44000GDT+T Datasheet
MAX44000GDT+T
Manufacturer Part Number
MAX44000GDT+T
Description
Optical Sensors - Industrial Digital Ambient Ligh t Sensor and Proximi
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX44000GDTT.pdf
(24 pages)
Specifications of MAX44000GDT+T
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5859; Rev 0; 10/11
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.
The MAX44000 combines a wide-dynamic range ambient
light sensor with an integrated infrared proximity sensor. The
IC is a perfect solution for touch-screen portable devices.
The IC can consume as low as 11µA (time averaged) in
ambient light sensing plus proximity sensing, including
external IR LED current.
The on-chip ambient sensor has the ability to make wide
dynamic range 0.03 lux to 65,535 lux measurements. An
on-chip IR proximity detector is matched with an inte-
grated IR LED driver. All readings are available on an
I
minimizes the need to poll the device for data, freeing
up microcontroller resources, reducing system software
overhead, and ultimately, reducing power consumption.
The IC is designed to drive an external IR LED and can
operate from a V
operating current when only the ambient light sensor is
enabled and 7µA when the proximity receiver and driver
are enabled.
2
C communication bus. A programmable interrupt pin
Smartphones
Accessories
Industrial Sensors
Presence Detection
IR LED
V
LED
DD
DRV
_______________________________________________________________ Maxim Integrated Products 1
of 1.7V to 3.6V. It consumes just 5µA
Ambient and Infrared Proximity Sensor
General Description
IR (ALS)
IR (PRX)
VIS + IR
(ALS)
V
DD
GND
Applications
CANCELLATION
PGA
PGA
AMBIENT
ALS
ALS
MAX44000
PRX
PGA
S Tiny, 2mm x 2mm x 0.6mm UTDFN-Opto Package
S V
S Low-Power Operation
S Excellent Light Source Matching
S Integrated Single-Pulse IR LED Driver
S -40NC to +105NC Temperature Range
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Application Circuit appears at end of data sheet.
MAX44000GDT+
DD
Programmable Green and IR Channel Gains
10mA to 110mA Programmable Range
Internal Ambient Cancellation
5µA in Ambient Mode
7µA in Ambient Plus Proximity Mode
70µA in Ambient Plus Proximity Mode,
Including 100mA LED Current
14-/8-BIT
PART
= 1.7V to 3.6V
14-BIT
Simplified Block Diagram
I
2
C
-40NC to +105NC
TEMP RANGE
Ordering Information
SDA
SCL
INT
MICROCONTROLLER
V
DD
PIN-PACKAGE
GND
6 OTDFN-EP*
Features
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