Panasonic S Series - Panel SOS Signal Analysis

Slide 36
Panel SOS
5.SOS Detect Circuit Explanation (4)
The Panel SOS is generated from 5 input signals
by IC5000.
These 5 inputs have different priority.
Each input signals are valid if these signal have
voltage over 2V.
Then IC5000 outputs multi level voltage
(Panel_SOS) based on inputted signals.
SOS7_SC2: 3.3V
SOS8_SS: 0.8V
SOS6_SC1: 1.4V
SOS_DCC: 2.0V
FFC_OFF_DET: 2.5V
S series and ST series are different about
generating blink by detecting panel_sos voltage.
S series will detect 2 times at 2.8s and 3.8s point.
ST series will detect at 800ms point.
SOS7_SC2
SOS8_SS
SOS6_SC1
SOS_DCC
FFC_OFF_DET
Panel_SOS
IC5000
High
Low
Priority
3.3V
0.8V
1.4V
2.0V
2.5V
0V
2.0V
Panel_SOS
SOS7_SC2
SOS8_SS
SOS6_SC1
SOS_DCC
FFC_OFF_DET
Detect
Detect
-
Detect
Detect
800ms point
ST Series
-6DetectDetect0.8V
S series
66-Detect1.4V
88Not detectDetect0.8V
99-Detect2.0V
77-Detect3.3V
blinkblink3.8s point2.8s pointPanel SOS