ALS-PDIC17-79NB-TR8 Datasheet, PDF (4/21 Pages) Everlight Electronics Co., Ltd – I2 Digital Ambient Light Sensor

Surface - Mount
I²C Digital Ambient Light Sensor
ALS-PDIC17-79NB/TR8
Electrical and Optical Characteristics (Ta=25℃ , V_DD=3.3V)
Parameter
Symbol Test Conditions
Min.
Typ.
Supply current
I²C output low voltage
Detection limit
IDD
Active mode
-
0.4
IDDQ Power-down mode -
-
VOL
Io = 4mA
-
-
Full scale
-
-
Tint = 100mS
-
-
Max.
0.5
0.1
0.4
32,767
110,000
Units
mA
uA
V
count
lux
Peak sensitivity wavelength
λp
-
-
550
-
nm
Response in dark
environment
Response to incandescent
lamp
Response to fluorescent
lamp
Rdak
Ricd
Rfrst
Ev = 0 lux,
Tint = 100 mS
Ev = 100 lux
Tint = 100 mS
Ev = 100 lux
Tint = 100 mS
-
-
1
23
32
-
20
30
-
count
counts
count
DC Characteristics of I²C Signals in Standard and Fast Mode
Parameter
Symbol
Standard Mode
Min.
Max.
Fast Mode
Unit
Min.
max.
Power supply voltage (recommend)
VDD 2.7
5.5
2.7
5.5
V
Low level input voltage
VIL
-0.5
1.0
-0.5
1.0
V
High level input voltage
VIH
2.0
2.0
V
Hysteresis of Schmit trigger inputs
Vhys 0.05VDD -
0.05VDD -
V
(VDD > 2V)
Low level output voltage (open drain)
at 3mA sink current (VDD > 2V)
VOL1 0
0.4
0
0.4
V
Output fall time from VIHMIN to VILMAX
with a bus capacitance from 10pF to
tof
-
400pF
250^[2]
20+0.1Cb
[1]
250 ^[2]
nS
Input current of each IO pins with an
input voltage between 0.1VDD and
Ii
-10
10
-10
10
uA
0.9VDD
Capacitance for each IO pin
Ci
-
10
-
10
pF
Notes:
1.
2.
Cb = capacitance of one bus line in pF
The maximum tf for the I²C data and clock bus lines quoted in the AC table is longer than the
specified maximum tof for the output stages (250nS). This allows series protection resistors (Rs) to
be connected between I²C data / clock pins and the I²C data / clock bus lines without exceeding the
maximum specified tf.
Everlight Electronics Co., Ltd.
Document No: DLS-xxxxxxx Rev1
4
http://www.everlight.com
Oct. 12, 2010