S1F87110B0A Epson Electronics America, Inc., S1F87110B0A Datasheet - Page 16

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

7.5 Automatic luminance control
7.5.1 Selection of current change time for automatic luminance control
automatically to correspond the result.
(brightness) to decrease 25% (TDW) can be set independently.
S1F87110B0A Series Technical Manual (Rev.1.0)
Address
The S1F87110 evaluates brightness in every brightness evaluation sampling cycle, and changes the duty
(For table setting of brightness evaluation - PWM duty, see 7.5.2 and 7.9.2.)
Duty change time = brightness change time can be changed with registers.
The time required for the duty (brightness) to increase 25% (TUP) and the time required for the duty
03H
Definition of PWM duty change times TUP and TDW
Registers for selecting PWM duty change time
PWM duty change time setting table
∆duty=25%
TDW2/TUP2
Register
Name
R/W
Default
value
0
0
0
0
1
1
1
1
Item
Duty(%)
D7
-
-
-
TDW1/TUP1
I
2
C register
0
0
1
1
0
0
1
1
TDW2
TDW setting register
R/W
D6
0
TUP
7. OPERATIONAL AND FUNCTIONAL DESCRIPTION
TDW1
R/W
TDW0/TUP0
D5
1
TDW
0
1
0
1
0
1
0
1
EPSON
TDW0
R/W
D4
Registers
1
Duty change time (sec)
D3
-
-
-
(∆duty=25%)
167.77
10.48
20.97
41.94
83.89
1.31
2.62
5.24
TUP setting register
TUP2
R/W
D2
0
TUP1
R/W
D1
1
TDW default setting
TUP default setting
Change time (msec)
Remarks
TUP0
R/W
D0
0
Remarks
-
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