S1D15206F00A200 Epson, S1D15206F00A200 Datasheet - Page 141

• Manufacturer Part Number: S1D15206F00A200
• Description: LCD Drivers LCD DRIVER
• Manufacturer: Epson

Specifications of S1D15206F00A200

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Reference setup value: S1D15300 V
1:
*2: C1 and C2 depend on the capacity of the LCD panel to be
*3: LCD SIZE means the length and breadth of the display portion
* Precautions when installing the COG
When installing the COG, it is necessary to duly consider the fact
that there exists a resistance of the ITO wiring occurring between the
driver chip and the externally connected parts (such as capacitors
and resistors). By the influence of this resistance, non-conformity
may occur with the indications on the liquid crystal display.
Therefore, when installing the COG design the module paying
sufficient considerations to the following three points.
1.
2.
3.
Also, as for this driver IC, pay sufficient attention to the following
points when connecting to external parts for the characteristics of the
circuit.
1.
Rev.1.4
CONFIGURATION
As the input impedance of V
short wire and cable shield is required.
driven. Set a value so that the LCD drive voltage may be stable.
[Setup example]
Turn on the voltage regulator and voltage follower and give an
external voltage to V
heavy load pattern and determine C2 so that the LCD drive
voltage (V
of C2 must be all equal. Next, turn on all the on-board power
supplies and determine C1.
of the LCD panel.
Suppress the resistance occurring between the driver chip pin to
the externally connected parts as much as possible.
Suppress the resistance connecting to the power supply pin of
the driver chip.
Make various COG module samples with different ITO sheet
resistance to select the module with the sheet resistance with
sufficient operation margin.
Connection to the boosting capacitors The boosting capacitors
(the capacitors connecting to respective CAP pins and capacitor
being inserted between V
switched over by use of the transistor with very low ON-
resistance of about 10 . However, when installing the COG,
SIZE
LCD
DOT
C1
C2
R1
R2
R3
S1D15300
S1D15301
S1D15302
1
Model
to V
0.22~0.47 uF
16 50 mm
1.0~4.7 uF
SED1530
32 100
700 K
200 K
1.6 M
5
) may be stable. However, the capacity value
S1D15301 V
S1D15302 V
OUT
. Display a horizontal-stripe LCD
LCD drive voltage
OUT
R
1/5 or 1/6 bias
1/6 or 1/8 bias
is high, a noise protection using
0.47~1.0 uF
32
and V
1.0~4.7 uF
SED1531
64 128
200 K
5
5
5
1 M
4 M
=
=
=
64 mm
SS2
-7 to -9 V
-11 to -13 V (variable)
-11 to -13 V (variable)
) of this IC are being
32 100 mm
0.47~1.0 uF
1.0~4.7 uF
SED1532
64 200
200 K
1 M
4 M
EPSON
Reset Circuit
When the RES input goes low, this LSI is initialized.
Initialized status
As seen in 11. Microprocessor Interface (Reference Example),
connect the RES pin to the reset pin of the microprocessor and
initialize the microprocessor at the same time.
In case the S1D15300 series does not use the internal LCD power
supply circuit, the RES must be low when the external LCD power
supply is turned on.
When RES goes low, each register is cleared and set to the above
initialized status. However, it has no effect on the oscillator circuit
and output pins (FR, CL, DYO, D0 to D7).
The initialization by RES pin signal is always required during
power-on. If the control signal from the MPU is HZ, an overcurrent
may flow through the IC. A protection is required to prevent the HZ
signal at the input pin during power-on.
Be sure to initialize it by RES pin when turning on the power supply.
When the reset command is used, only parameters 8 to 14 in the
above initialization are executed.
2.
Indicated below is an exemplary connection diagram of external
resistors.
Please make sufficient evaluation work for the display statuses with
any connection tests.
1. Display OFF
2. Normal display
3. ADC select: Normal display (ADC command D0 =
4. Read modify write OFF
5. Power control register (D2, D1, D0) = (0, 0, 0)
6. Register data clear in serial interface
7. LCD power supply bias ratio 1/6 (S1D15300), 1/8
8. Static indicator: OFF
9. Display start line register set at line 1
10. Column address counter set at address 0
11. Page address register set at page 0
12. Output status register (D3) = (0)
13. Electronic control register set at 0
14. Test command OFF
the resistance of ITO wiring is being inserted in series with the
switching transistor, thus dominating the boosting ability.
Consequently, the boosting ability will be hindered as a result
and pay sufficient attention to the wiring to respective boosting
capacitors.
Connection of the smoothing capacitors for the liquid crystal
drive
The smoothing capacitors for the liquid crystal driving potentials
(V
not only for the purpose of mere stabilization of the voltage
levels. If the ITO wiring resistance which occurs pursuant to
installation of the COG is supplemented to these smoothing
capacitors, the liquid crystal driving potentials become unstable
to cause non-conformity with the indications of the liquid
crystal display. Therefore, when using the COG module, we
definitely recommend to connect reinforcing resistors externally.
Reference value of the resistance is 100k to 1M .
Meanwhile, because of the existence of these reinforcing
resistors, current consumption will increase.
1
. V
low)
(S1D15301, SE1D15302)
2
, V
3
and V
4
) are indispensable for liquid crystal drives
S1D15300 Series
5–17