MAX44000 Maxim, MAX44000 Datasheet - Page 4
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MAX44000
Manufacturer Part Number
MAX44000
Description
MAX44000 combines a wide-dynamic range ambient light sensor with an integrated infrared proximity sensor, making it a perfect solution for touch-screen portable devices
Manufacturer
Maxim
Datasheet
1.MAX44000.pdf
(24 pages)
ELECTRICAL CHARACTERISTICS (continued)
( V
Ambient and Infrared Proximity Sensor
Note 1: All devices are 100% production tested at T
Note 2: Guaranteed by design. Green 538nm LED chosen for production so that the IC responds to 100 lux flourescent light with
I
Serial-Clock Frequency
Bus Free Time Between STOP
and START
Hold Time (Repeated) START
Condition
Low Period of the SCL Clock
High Period of the SCL Clock
Setup Time for a REPEATED
START
Data Hold Time
Data Setup Time
SDA Transmitting Fall Time
Setup Time for STOP Condition
Pulse Width of Suppressed Spike
(V
Temperature limits are guaranteed by design.)
4
2
C TIMING CHARACTERISTICS
DD
DD
120
100
______________________________________________________________________________________
80
60
40
20
0
= 1.8V, T
= 1.8V, T
270
100 lux.
PARAMETER
370
SPECTRUM RESPONSE
MIN
470
MIN
WAVE LENGTH (nm)
570
– T
– T
MAX
670
MAX
= -40°C to +105°C, T
770
GREEN CHANNEL
RED CHANNEL
CIE CURVE
= -40 ° C to +85 ° C, unless otherwise noted. All devices are 100% production tested at T
870
970
SYMBOL
t
t
t
t
t
HD,DAT
HD,STA
SU.STA
SU,DAT
SU,STO
t
t
1070
f
t
HIGH
LOW
SCL
BUF
t
SP
t
F
300
250
200
150
100
A
I
and 0.7 x V
50
SINK
0
= +25°C, unless otherwise noted.) (Note 1)
0
A
P 6mA, t
= +25NC. Temperature limits are guaranteed by design.
20
ADC COUNT vs. DISTANCE
vs. LED DRIVE CURRENT
DD
40
R
DISTANCE (mm)
CONDITIONS
I
and t
OUT
I
60
OUT
= 50mA
I
OUT
= 110mA
F
80
Typical Operating Characteristics
between 0.3 x V
= 20mA
100
120
140
DD
300
250
200
150
100
50
0
MIN
100
1.3
0.6
1.3
0.6
0.6
0.6
0
ADC COUNT vs. DISTANCE vs. OBJECT
0
0
10
GREY CARD
20
TYP
100
30
DISTANCE (mm)
40
WHITE CARD
50
MAX
400
0.9
50
60
70
A
80
UNITS
= +25°C .
kHz
Fs
Fs
Fs
Fs
Fs
Fs
ns
ns
Fs
ns
90
100