S1F76680 Epson Electronics America, Inc., S1F76680 Datasheet - Page 17
S1F76680
Manufacturer Part Number
S1F76680
Description
Led Driver
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1F76680.pdf
(29 pages)
- Current page: 17 of 29
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[6] Constant setting
S1F76680 Technical Manual (Rev.1.22)
S1F76680 evaluates ambient brightness using value of sensor’s VPD on the scale of 1 to 16.
The following table shows relation between VPD and brightness.
Ambient luminance evaluated by a luminance sensor and sensor current IPD typically shows the following
inclination.
VPDn : Threshold of brigtness n and brightness n+1
10
VPD1=0.003
VPD2=0.004
VPD3=0.006
VPD4=0.010
VPD5=0.016
VPD6=0.026
VPD7=0.040
VPD8=0.063
VPD9=0.079
VPD10=0.126
VPD11=0.173
VPD12=0.299
VPD13=0.472
VPD14=0.787
VPD15=1.197
VPD(V)
Ambient luminance - Sensor current IPD
Ambient luminance [lx] log
7. OPERATIONAL AND FUNCTIONAL DESCRIPTION
100
EPSON
Brightness 10
Brightness 11
Brightness 12
Brightness 13
Brightness 14
Brightness 15
Brightness 16
Brightness 1
Brightness 2
Brightness 3
Brightness 4
Brightness 5
Brightness 6
Brightness 7
Brightness 8
Brightness 9
1000
Brightness
(high sensor current)
(low sensor current)
10000
Bright
Dark
13
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