S1D10605 Epson Electronics America, Inc., S1D10605 Datasheet - Page 457
S1D10605
Manufacturer Part Number
S1D10605
Description
S1d15000 Series Lcd Driver With Ram
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1D10605.pdf
(612 pages)
- Current page: 457 of 612
- Download datasheet (5Mb)
Power Supply Circuit
This power supply circuit is a low power supply
consumption one that generates the voltage required for
the liquid crystal drive and consists of a boosting circuit,
voltage adjusting circuit, and voltage follower circuit. It
is valid only at master operation.
The power supply circuit ON/OFF controls the boosting
• The boosting system pin indicates the CAP1+, CAP1–, CAP2+, CAP2–, or CAP3– pin.
• Although the combinations other than those listed in the above table are also possible, they cannot be recommended
Boosting circuit
The boosting circuit incorporated in the S1D15710
series enables the quadruple boosting, triple boosting,
and double boosting of the V
For the quadruple boosting, the V
is quadruple-boosted to the negative side and output to
the V
CAP1+
between CAP1+
and V
For the triple boosting, the V
Rev. 1.1a
1
2
3
4
because they are not actual use methods.
Status of use
Built-in power
supply used
V adjusting circuit
and V/F circuit only
V/F circuit only
External power
supply only
OUT
OUT
D2 Boosting circuit control bit
D1 Voltage adjusting circuit (V adjusting circuit) control bit
D0 Voltage follower circuit (V/F circuit) control bit
pin by connecting the capacitor C1 between
and CAP1–, between CAP2+
.
Table 7 Description of controlling bits using the power control set command
and CAP3–, and between V
D2
1
0
0
0
DD
DD
– V
DD
D1
SS2
1
1
0
0
V
Item
SS2
Table 8 Reference combinations
potential.
V
SS2
and CAP2–,
potential is
D0
1
1
1
0
potential
SS2
Boosting V adjusting
circuit
O
EPSON
X
X
X
circuit, voltage adjusting circuit, and voltage follower
circuit using the power supply control set command,
respectively.
Therefore, it can also use the partial functions of the
external power supply and built-in power supply
together. Table 7 lists the functions that control 3-bit
data using the power control set command and Table 8
lists the reference combinations.
triple-boosted to the negative side and output to the
V
CAP1+
and between V
CAP3– and V
For the double boosting, the V
doubly boosted to the negative side and output to the
V
CAP1+
CAP2+ to OPEN, and V
CAP3–, and V
Figure 8 shows the relationships of boosting potential.
circuit
OUT
OUT
O
O
X
X
pin by connecting the capacitor C1 between
pin by connecting the capacitor C1 between
and CAP1–, between CAP2+
and CAP1–, and between V
circuit voltage input system pin
OUT
OUT
V/F
SS2
O
O
O
X
pins.
pins.
“1”
ON
ON
ON
and V
V
External
OUT
V
OUT
V
State
5
1
V
, V
OUT
SS2
to V
, V
DD
and strapping CAP2–,
SS2
S1D15710 Series
SS2
5
and strapping both
OFF
OFF
OFF
“0”
V
SS2
SS2
Boosting
and CAP2–,
OPEN
OPEN
OPEN
potential is
Used
, setting
11–19
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