S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 124
S1D12200
Manufacturer Part Number
S1D12200
Description
S1d12000 Series Lcd Driver Ic Technical Manual Technical Manual
Manufacturer
Epson Electronics America, Inc.
Datasheet
1.S1D12200.pdf
(260 pages)
- Current page: 124 of 260
- Download datasheet (4Mb)
S1D12300 Series
Liquid crystal voltage generating circuit
The V
that V
crystal drive.
Furthermore, the V
converted by voltage follower and the then supplied to
Reference setting values: C1: 0.1 - 4.7 F
4–20
1
5
, V
potential is resistance-divided inside the IC so
When an external power regulator is used
(The built-in power regulator is not used)
regulator
External
2
power
, V
When a built-in power supply is used
3
R2
and V
C1
C2
C2
Under a triple boosting
C1
1
C1
C1
C1
C1
4
R3
R1
, V
potentials are generated for liquid
2
, V
C2: 0.1 F
3
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
and V
SS
OUT
5
R
DD
1
2
3
4
5
SS
OUT
5
R
DD
1
2
3
4
5
, V
, V
S1D123
S1D123
0
0
4
are impedance-
**
**
D
D
****
****
We recommend the user to set the optimum values to capacitors C1
and C2 according to the panel size watching the liquid crystal display
and drive waveforms.
EPSON
C2
C2
the liquid crystal drive circuit.
The liquid crystal drive voltage is fixed to 1/5 bias.
As shown in the diagrams below, the capacitor (C2) for
voltage stabilization must be externally connected to the
V
1
The diagram under a double boosting
R2
to V
regulator
C1
External
C2
power
5
pins of liquid crystal power pins.
C1
R3
R1
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
SS
OUT
5
R
DD
1
2
3
4
5
SS
OUT
5
R
DD
1
2
3
4
5
, V
, V
S1D123
S1D123
0
0
**
**
D
D
****
****
Rev. 1.9
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