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7. COMMAND
(5) Power supply OFF
This IC controls the circuits of the liquid crystal drive power supply system in the V
V
power supply circuits. If V
SSH
remaining in the liquid crystal drive power supply system, the voltage that is not controlled will be output from
the SEG and COM pins, which could cause display problem. Be sure to follow the above power supply OFF
sequence.
*1: The threshold voltage of the LCD panel 1[V] serves as an index. Prevent V
high impedance during discharge (reset).
50
Optional state
Set functions by command input (user-configuration)
(23) Power save ON
External power supply stop
<When external clock is used>
External clock stop
Set functions by command input (user-configuration)
(22) Discharge ON
____
Reset (
RES pin = LOW) *1
t
Set the time (
) from entering the state of reset
L
to the time when power supplies V
V
to V
are turned off longer than the time
DD2
SSL
t
(
) at which the liquid crystal drive voltages (V
H
V
, V
, V
, MV
, and MV
2
1
C
1
or equal to the threshold of the LCD panel. *1
V
, V
power supply OFF
DD
DD2
, V
to V
, and V
DD
DD2
SSL
EPSON
(V
) and
DD
DI
,
3
) become smaller than
2
power supplies are cut off with the voltage
SSH
S1D15722D01B000 Technical Manual (Rev.1.1)
, V
to V
DD
DD2
SSL
and V
from becoming
DD
DD2
, and
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