S1F87110B0A Epson Electronics America, Inc., S1F87110B0A Datasheet - Page 14

• Manufacturer Part Number: S1F87110B0A
• Description: Led Controller
• Manufacturer: Epson Electronics America, Inc.

7.4.2 Brightness evaluation voltage VPD
brightness evaluation VPD.
S1F87110B0A Series Technical Manual (Rev.1.0)
The S1F87110 evaluates ambient brightness using the value of VPD on the scale of 1 to 16.
The following table shows relation between VPD threshold and brightness evaluation.
Determine the appropriate RPD based on the characteristic of the luminance sensor (IPD) and this IC’s
VPDn: Threshed of brightness n and brightness n-1
VPD1=0.004
VPD2=0.006
VPD3=0.009
VPD4=0.012
VPD5=0.020
VPD6=0.032
VPD7=0.048
VPD8=0.065
VPD9=0.080
VPD10=0.150
VPD11=0.255
VPD12=0.375
VPD13=0.575
VPD14=0.905
VPD15=1.300
VPDn(V)
7. OPERATIONAL AND FUNCTIONAL DESCRIPTION
Brightness 10
Brightness 11
Brightness 12
Brightness 13
Brightness 14
Brightness 15
Brightness 0
Brightness 1
Brightness 2
Brightness 3
Brightness 4
Brightness 5
Brightness 6
Brightness 7
Brightness 8
Brightness 9
EPSON
Brightness evaluation
Dark (low sensor
sensor current)
Bright (high
current)
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