S1D10605 Epson Electronics America, Inc., S1D10605 Datasheet - Page 288

• Manufacturer Part Number: S1D10605
• Description: S1d15000 Series Lcd Driver With Ram
• Manufacturer: Epson Electronics America, Inc.

* The V
The Voltage Regulator Circuit
The step-up voltage generated at V
liquid crystal driver voltage V
regulator circuit.
Because the S1D15605 Series chips have an internal
high-accuracy fixed voltage power supply with a 64-
level electronic volume function and internal resistors
for the V
without having to include high-accuracy voltage
regulator circuit components.
Moreover, in the S1D15605 Series, three types of thermal
gradients have been prepared as V
approximately -0.05%/ C (2) approximately -0.2%/ C,
and (3) external input (supplied to the V
Rev. 2.4a
value.
C1
C1
C1
C1
V
+
+
+
V
V
4 x step-up voltage circuit
OUT
DD
SS2
5
SS2
4x step-up voltage relationships
= 0V
voltage regulator, systems can be constructed
= –3V
= 4 x V
voltage range must be set so that the V
V
V
CAP3–
CAP1+
CAP1–
CAP2–
CAP2+
SS2
SS2
OUT
= –12V
5
through the voltage
REG
OUT
RS
options: (1)
V
V
V
outputs the
OUT
terminal).
C1
C1
C1
DD
SS2
3x step-up voltage relationships
+
+
+
3 x step-up voltage circuit
= 0V
= –3V
= 3 x V
OUT
EPSON
Figure 7
SS2
terminal voltage does not exceed the absolute maximum rated
= –9V
V
V
CAP3–
CAP1+
CAP1–
CAP2–
CAP2+
SS2
OUT
(A) When the V
Through the use of the V
resistors and the electronic volume function the liquid
crystal power supply voltage V
commands alone (without adding any external resistors),
making it possible to adjust the liquid crystal display
brightness. The V
equation A-1 over the range where | V
Resistors Are Used
V
V
V
OUT
DD
SS2
2x step-up voltage relationships
5
5
= 0V
Voltage Regulator Internal
= –5V
= 2 x V
voltage can be calculated using
C1
C1
+
+
5
2 x step-up voltage circuit
SS2
voltage regulator internal
OPEN
= –10V
5
S1D15605 Series
can be controlled by
V
V
CAP3–
CAP1+
CAP1–
CAP2–
CAP2+
5
SS2
OUT
| < | V
OUT
8–33
|.