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413101
Visible Light Detector with Analog
and Digital Outputs
Preliminary Datasheet
Revision A
This document is the property of Semefab (Scotland) Ltd. And is furnished in
confidence and upon the condition that it is neither copied or released to a third
party without prior consent.
Page 4 of
12
4.0 ELECTRICAL SPECIFICATION
The following parameters apply over the operating temperature range –40
oC to +85 oC, and with
RSS=10 K-Ohms and VDD= 5V, as per figure A.
Parameter
Symbol
Test conditions
Min
Typ
Max
Units
Infra Red response
900nm
1
5
%of peak
Minimumoperational voltage
VDD-VSS
300 Lux, Iss= 300uA
1.8
V
50 Lux, Iss= 50uA
1.3
V
ADJUST current
IADJ
300 Lux
300
uA
100 Lux
100
uA
10 Lux
10
uA
ADJUST Dark Current
IADJ(DARK)
0 Lux, Ta=25
oC
<1
nA
0 Lux, Ta=85
oC
170
nA
Gain Linearity
-10
10
%
Peak spectral response
520
nm
Sensitive area
0.054
mm
2
ADJUST threshold voltage for
switching of DIG_OUT
Lowto high transition on DIG_OUT
VLH
Fading light level
0.1 x VDD
V
High to lowtransition on DIG_OUT
VHL
Increasing light level
0.15 x VDD
V
DIG_OUT source current
IOUT_SOURCE
VDIG_OUT =VDD - 0.8V
2.4
mA
DIG_OUT sink current
IOUT_SINK
VDIG_OUT =0.8V
2.2
mA
Useable light range
Vss &Vdd dependant
1
1000
Lux
Note that with a lower Rss resistance connected between the ADJ pin and ground, the linear
light response range can be greatly increased – up to 1000 Lux. See graph on page 6.
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