Datasheet

Industry’s Lowest-Power
Ambient Light Sensor with ADC
Typical Operating Characteristics (continued)
(V
CC
= 1.8V, default power-up setting; unless otherwise noted.)
Pin Configuration
Pin Description
SUPPLY CURRENT vs. LUX READING
MAX44009 toc07
LUX READING (LUX)
SUPPLY CURRENT (µA)
10k1k
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
100 100k
SUNLIGHT
LIGHT SENSITIVITY vs. LUX LEVEL
MAX44009 toc08
REFERENCE METER READING (LUX)
OUTPUTS READING (LUX)
25020015010050
50
100
150
200
250
300
350
0
0 300
FLUORESCENT
LAMP
INCANDESCENT
LAMP
SDA INT OUTPUT LOW VOLTAGE
vs. SINK CURRENT
MAX44009 toc09
I
SINK
(mA)
V
OL
(mV)
986 72 3 4 51
10
20
30
40
50
60
70
80
90
100
110
120
0
0 10
INT
SDA
1
6
V
CC
SDA
2
5
+
GND
SCL
3
EP
4
A0
INT
UTDFN-Opto
(2mm x 2mm)
TOP VIEW
MAX44009
PIN NAME PIN DESCRIPTION
1 V
CC
Power Supply
2 GND Ground
3 A0 Address Select. Pull high to select address 1001 011x or low to select address 1001 010x.
4
INT
Interrupt Output. Use an external pullup resistor.
5 SCL I
2
C Clock Bus
6 SDA I
2
C Data Bus
— EP Exposed Pad. Connect EP to ground.
Maxim Integrated
5
MAX44009