Datasheet
Industry’s Lowest-Power
Ambient Light Sensor with ADC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
INT to GND ............................................... -0.3V to (V
CC
+ 0.3V)
All Other Pins to GND
.............................................-0.3V to +4V
INT Short-Circuit Current Duration
........................................ 10s
All Other Pins Short-Circuit Current Duration
............Continuous
Continuous Input Current into Any Terminal
................... Q20mA
Continuous Power Dissipation
6 UTDFN-Opto (derate 11.9mW/NC above +70NC) .....953mW
Operating Temperature Range
.......................... -40NC to +85NC
ELECTRICAL CHARACTERISTICS
(V
CC
= 1.8V, T
MIN
to T
MAX
= -40NC to +85NC, unless otherwise noted.) (Note 1)
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OPTICAL CHARACTERISTICS
Maximum Lux Sensitivity Fluorescent light 0.045 Lux/LSB
Saturation Ambient Lux Level Sunlight 188,000 Lux
Total Error TE
Green LED 538nm response,
T
A
= +25NC (Note 2)
15 %
Light Source Matching
Fluorescent/incandescent light 10 %
Infrared Transmittance at 940nm IRR T
A
= +25NC (Note 3) 0 0.5 %
Ultraviolet Transmittance at
363nm
UVR T
A
= +25NC (Note 3) 1.2 %
Dark Level Count 0LUX 0 lux, T
A
= +25NC, 800ms range 0 0.045 Lux
Maximum Signal Integration
Time
Has 50/60Hz rejection 800 ms
Minimum Signal Integration Time
Automatic mode, has 50/60Hz rejection 100
ms
Manual mode only 6.25
ADC Conversion Time ACT
100ms range, T
A
= +25NC 99.6 100 100.4
ms
100ms range 97 103 107
POWER SUPPLY
Power-Supply Voltage V
CC
Guaranteed by TE test 1.7 3.6 V
Power-Supply Current I
CC
T
A
= +25NC, 90 lux, I
2
C inputs inactive 0.65 1.2
FA
T
A
= -40NC to +85NC 1.6
DIGITAL I/O CHARACTERISTICS
Output Low Voltage SDA, INT V
OL
I
SINK
= 6mA 0.06 0.4 V
INT Leakage Current T
A
= +25NC 0.01 20 nA
SCL, SDA, A0 Input Current I
IH
, I
IL
T
A
= +25NC 0.01 20 nA
I
2
C Input Low Voltage V
IL_I2C
SDA, SCL
0.3 x
V
CC
V
I
2
C Input High Voltage V
IH_I2C
SDA, SCL
0.7 x
V
CC
V
Address Input Low Voltage V
IL_A0
A0 0.3 V
Address Input High Voltage V
IH_A0
A0
V
CC
-
0.3V
V
Input Capacitance
3 pF
2
Maxim Integrated
MAX44009