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MAX44009
Industry’s Lowest-Power
Ambient Light Sensor with ADC
ABSOLUTE MAXIMUM RATINGS
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 ................... Q 20mA
Continuous Power Dissipation
6 UTDFN-Opto (derate 11.9mW/ N C above +70 N C) .....953mW
Operating Temperature Range .......................... -40 N C to +85 N C
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.
ELECTRICAL CHARACTERISTICS
(V CC = 1.8V, T MIN to T MAX = -40 N C to +85 N C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OPTICAL CHARACTERISTICS
Maximum Lux Sensitivity
Saturation Ambient Lux Level
Fluorescent light
Sunlight
0.045
188,000
Lux/LSB
Lux
Total Error
Light Source Matching
TE
Green LED 538nm response,
T A = +25 N C (Note 2)
Fluorescent/incandescent light
10
15
%
%
Infrared Transmittance at 940nm
Ultraviolet Transmittance at
363nm
Dark Level Count
Maximum Signal Integration
Time
Minimum Signal Integration Time
IRR
UVR
0LUX
T A = +25 N C (Note 3)
T A = +25 N C (Note 3)
0 lux, T A = +25 N C, 800ms range
Has 50/60Hz rejection
Automatic mode, has 50/60Hz rejection
Manual mode only
0
1.2
0
800
100
6.25
0.5
0.045
%
%
Lux
ms
ms
ADC Conversion Time
ACT
100ms range, T A = +25 N C
100ms range
99.6
97
100
103
100.4
107
ms
POWER SUPPLY
Power-Supply Voltage
Power-Supply Current
V CC
I CC
Guaranteed by TE test
T A = +25 N C, 90 lux, I 2 C inputs inactive
T A = -40 N C to +85 N C
1.7
0.65
3.6
1.2
1.6
V
F A
DIGITAL I/O CHARACTERISTIC S
Output Low Voltage SDA, INT
INT Leakage Current
SCL, SDA, A0 Input Current
V OL
I IH , I IL
I SINK = 6mA
T A = +25 N C
T A = +25 N C
0.06
0.01
0.01
0.4
20
20
V
nA
nA
I 2 C Input Low Voltage
I 2 C Input High Voltage
Address Input Low Voltage
Address Input High Voltage
Input Capacitance
V IL_I2C
V IH_I2C
V IL_A0
V IH_A0
SDA, SCL
SDA, SCL
A0
A0
0.7 x
V CC
V CC -
0.3V
3
0.3 x
V CC
0.3
V
V
V
V
pF
2
Maxim Integrated
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