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TSL25727 Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers

Part # TSL25727
Description  LIGHT-TO-DIGITAL CONVERTER
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TSL2572
LIGHT-TO-DIGITAL CONVERTER
TAOS132 − MARCH 2012
4
r
r
Copyright
E 2012, TAOS Inc.
The LUMENOLOGY
r Company
www.taosinc.com
Operating Characteristics, VDD = 3 V, TA = 255C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Active
200
250
IDD
Supply current
Wait state
90
μA
IDD
Supply current
Sleep state — no I2C activity
2.2
4
μA
V
INT SDA output low voltage
3 mA sink current
0
0.4
V
VOL
INT, SDA output low voltage
6 mA sink current
0
0.6
V
I LEAK
Leakage current, SDA, SCL, INT pins
−5
5
μA
V
SCL SDA input high voltage
TSL25721, TSL25725
0.7 VDD
V
VIH
SCL, SDA input high voltage
TSL25723, TSL25727
1.25
V
V
SCL SDA input low voltage
TSL25721, TSL25725
0.3 VDD
V
VIL
SCL, SDA input low voltage
TSL25723, TSL25727
0.54
V
ALS Characteristics, VDD = 3 V, TA = 255C, AGAIN = 16
y, AEN = 1 (unless otherwise noted)
(Notes 1 ,2, 3)
PARAMETER
TEST CONDITIONS
CHANNEL
MIN
TYP
MAX
UNIT
Dark ADC count value
Ee = 0, AGAIN = 120
×,
CH0
0
1
5
counts
Dark ADC count value
Ee = 0, AGAIN = 120
×,
ATIME = 0xDB (100 ms)
CH1
0
1
5
counts
ADC integration time step size
ATIME = 0xFF
2.58
2.73
2.9
ms
ADC number of integration steps
(Note 4)
1
256
steps
ADC counts per step (Note 4)
ATIME = 0xFF
0
1024
counts
ADC count value (Note 4)
ATIME = 0xC0
0
65535
counts
White light, Ee = 263.9 μW/cm2,
CH0
4000
5000
6000
ADC count value
White light, Ee = 263.9 μW/cm ,
ATIME = 0xF6 (27 ms) (Note 2)
CH1
680
counts
ADC count value
λp = 850 nm, Ee = 263.4 μW/cm2,
CH0
4000
5000
6000
counts
λp = 850 nm, Ee = 263.4 μW/cm ,
ATIME = 0xF6 (27 ms) (Note 3)
CH1
2850
ADC count value ratio: CH1/CH0
White light, ATIME = 0xF6 (27 ms) (Note 2)
0.086
0.136
0.186
ADC count value ratio: CH1/CH0
λp = 850 nm, ATIME = 0xF6 (27 ms) (Note 3)
0.456
0.570
0.684
White light, ATIME = 0xF6 (27 ms)
CH0
18.9
R
Irradiance responsivity
White light, ATIME = 0xF6 (27 ms)
(Note 2)
CH1
2.58
counts/
(
μW/
Re
Irradiance responsivity
λp = 850 nm, ATIME = 0xF6 (27 ms)
CH0
19.0
(
μW/
cm2)
λp = 850 nm, ATIME = 0xF6 (27 ms)
(Note 3)
CH1
10.8
cm2)
AGAIN = 1
× and AGL = 1
0.128
0.16
0.192
Gain scaling, relative to 1
× gain
AGAIN = 8
× and AGL = 0
7.2
8.0
8.8
×
Gain scaling, relative to 1
× gain
setting
AGAIN
16
× and AGL 0
14 4
16 0
17 6
×
setting
AGAIN = 16
× and AGL = 0
14.4
16.0
17.6
×
AGAIN = 120
× and AGL = 0
108
120
132
NOTES:
1. Optical measurements are made using small-angle incident radiation from light-emitting diode optical sources. Visible white LEDs
and infrared 850 nm LEDs are used for final product testing for compatibility with high-volume production.
2. The white LED irradiance is supplied by a white light-emitting diode with a nominal color temperature of 4000 K.
3. The 850 nm irradiance Ee is supplied by a GaAs light-emitting diode with the following typical characteristics: peak wavelength
λp = 850 nm and spectral halfwidth Δλ½ = 42 nm.
4. Parameter ensured by design and is not tested.


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