MAX44009EDT+T Maxim Integrated Products, MAX44009EDT+T Datasheet

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MAX44009EDT+T

Manufacturer Part Number
MAX44009EDT+T
Description
Optical Sensors - Industrial Digital Ambient Ligh Ambient Light Sensor
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX44009EDT+T

Operating Supply Voltage
1.7 V to 3.6 V
Maximum Power Dissipation
953 mW
Package / Case
TDFN-6
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Supply Current
0.65 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5719; Rev 0; 1/11
The MAX44009 ambient light sensor features an I
digital output that is ideal for a number of portable appli-
cations 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.
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.
Tablet PCs/Notebook Computers
TVs/Projectors/Displays
Digital Lighting Management
Portable Devices
Cellular Phones/Smartphones
Security Systems
________________________________________________________________ _Maxim Integrated Products_ _ 1
General Description
PHOTODIODE
PHOTODIODE
VISIBLE +IR
MAX44009
Applications
IR
Ambient Light Sensor with ADC
16-BIT
16-BIT
ADC
ADC
6-BIT RANGE
2
CONTROL
CDR, TIM
C
Industry’s Lowest-Power
S
S
S
S
S
S
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
MAX44009EDT+
Wide_0.045_Lux_to_188,000_Lux_Range
Small,_2mm_x_2mm_x_0.6mm_UTDFN-Opto
V
I
-40 N C_to_+85NC_Temperature_Range
Device_Address_Options
CC
PROCESSING
CC
1001_010x_and_1001_011x
DIGITAL
SIGNAL
_=_0.65µA_Operating_Current
_=_1.7V_to_3.6V
PART
I
2
6 UTDFN-Opto-EP*
C
V
GND
PIN-PACKAGE
Ordering Information
CC
N
SDA
SCL
AO
INT
Block Diagram
-40NC to +85NC
TEMP_RANGE
Features

Related parts for MAX44009EDT+T

MAX44009EDT+T Summary of contents

Page 1

... Portable Devices Cellular Phones/Smartphones Security Systems VISIBLE +IR PHOTODIODE MAX44009 PHOTODIODE ________________________________________________________________ _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 2 C Wide_0.045_Lux_to_188,000_Lux_Range ...

Page 2

Industry’s Lowest-Power Ambient Light Sensor with ADC ABSOLUTE_MAxIMUM_RATINGS INT to GND ............................................... -0. All Other Pins to GND .............................................-0.3V to +4V INT Short-Circuit Current Duration ........................................ 10s All Other Pins Short-Circuit Current Duration ............Continuous Stresses beyond those listed ...

Page 3

ELECTRICAL_CHARACTERISTICS_(continued 1.8V -40NC to +85NC, unless otherwise noted.) (Note 1) CC MIN MAX PARAMETER SYMBOL I 2 C_TIMING Serial-Clock Frequency Bus Free Time Between a STOP and a START Condition Hold Time (Repeated) START ...

Page 4

Industry’s Lowest-Power Ambient Light Sensor with ADC (V = 1.8V, default power-up setting, unless otherwise noted.) CC SPECTRUM RESPONSE 120 100 MAX44009 RESPONSE 300 400 500 600 WAVELENGTH (nm) SPECTRUM OF LIGHT SOURCES FOR MEASUREMENT ...

Page 5

CC SUPPLY CURRENT vs. LUX READING 3.5 3.0 2.5 2.0 1.5 1.0 0.5 SUNLIGHT 0 100 1k 10k LUX READING (LUX) PIN NAME 1 V Power Supply CC 2 GND Ground ...

Page 6

Industry’s Lowest-Power Ambient Light Sensor with ADC Detailed Description The MAX44009 is an ambient light sensor with integrated 2 photodiode and ADC with digital interface. To measure ambient light, the die is placed inside an opti- cally ...

Page 7

Table_1._Register_Map REGISTER 7 6 STATUS Interrupt Status — — Interrupt Enable — — CONFIGURATION Configuration CONT MANUAL LUx_READING Lux High Byte E3 E2 Lux Low Byte — — THRESHOLD_SET Upper Threshold UE3 UE2 High Byte Lower Threshold LE3 LE2 High ...

Page 8

Industry’s Lowest-Power Ambient Light Sensor with ADC Interrupt events set the INTS bit (register 0x00, bit 0) and the INT pin only if the INTE bit is set the INTE bit is set (interrupt is enabled) and ...

Page 9

The TIM[2:0] bits can be used to program the signal integration time. In automatic mode (MANUAL = 0), integration time is automatically selected by the on-chip algorithm to be either 100ms/200ms/400ms/800ms. In manual mode, integration time can be varied by ...

Page 10

Industry’s Lowest-Power Ambient Light Sensor with ADC BIT_7 BIT_6 BIT_5 — — — Bits in Lux Low-Byte register 0x04 give the 4 least significant bits of the mantissa byte representing the lux reading of ambient light. Combined with the Lux ...

Page 11

BIT_7 BIT_6 BIT_5 LE3 LE2 LE1 The Lower Threshold register exponent with the four most significant bits of the mantissa sets the lower trip level for interrupt functionality. This lower limit is relevant only if the INTE bit in the ...

Page 12

Industry’s Lowest-Power Ambient Light Sensor with ADC The count is multiplied by 0.045, which is the LSB. Because of the logarithmic nature of autoranging cir- cuitry implemented on the IC, resolution of ambient lux readings scale with the absolute measurement. ...

Page 13

Table_9._Recommended_Manual_Mode_Settings_for_Configuration_Register_(0x02)_and_ Threshold_Registers_(0x05,_0x06) APPLICATION_CONDITIONS LUx_LSB_ LUx_ LUx_LSB_ (MIN) (MAx) (MAx) 0.045 2938 11.52 0.09 5875 23.04 0.18 11,750 46.08 0.36 23,501 92.16 0.72 47,002 184.32 1.44 94,003 368.64 2.88 188,006 737.28 5.76 188,006 737.28 11.52 188,006 737.28 23.04 188,006 737.28 46.08 ...

Page 14

Industry’s Lowest-Power Industry’s Lowest-Power Ambient Light Sensor with ADC Ambient Light Sensor with ADC READ MAX44009 AMBIENT LUX, SET APPROPRIATE BACKLIGHT STRENGTH WRITE TO UPPER LUX THRESHOLD, LOWER LUX THRESHOLD, AND LUX THRESHOLD TIMER REGISTERS WORK ON TASKS/SLEEP UNTIL WOKEN ...

Page 15

I C Serial Interface The IC features C/SMBus™-compatible, 2-wire serial interface consisting of a serial-data line (SDA) and a serial-clock line (SCL). SDA and SCL facilitate com- munication between the IC and the master at clock ...

Page 16

Industry’s Lowest-Power Ambient Light Sensor with ADC S SR SCL SDA Figure 4. START, STOP, and Repeated START Conditions The slave address is controlled by the A0 pin. Connect A0 to either ground set the address. Table ...

Page 17

ACKNOWLEDGE FROM MAX44009 S SLAVE ADDRESS R/W Figure 6. Writing 1 Byte of Data to the IC ACKNOWLEDGE FROM MAX44009 ACKNOWLEDGE FROM MAX44009 S SLAVE ADDRESS 0 A R/W Figure 7. Reading 1 Indexed Byte of Data from the IC ...

Page 18

Industry’s Lowest-Power Ambient Light Sensor with ADC V CC GND AD Figure 9. Sensor Position 1.7V TO 3.6V 1µF V SDA CC SCL GND A0* INT MAX44009 *DEVICE ADDRESS IS 1001 010x. CONNECT FOR SLAVE ADDRESS 1001 ...

Page 19

For the latest package outline information and land patterns www.maxim-ic.com/packages._Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ____________________ ________ Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 20_ 2011 Maxim Integrated Products © ...

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