S1D15206F00A200 Epson, S1D15206F00A200 Datasheet - Page 137

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

Specifications of S1D15206F00A200

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

Example of S1D15300D00B
•
Display Data Latch Circuit.
This circuit temporarily stores (or latches) display data (during a
single common signal period) when it is output from display RAM
to LCD panel driver circuit. This latch is controlled by Display in
normal/in reverse Display ON/OFF and Static All-display on com-
mands. These commands do not alter the data.
LCD Driver
This is a multiplexer circuit consisting of 133 segment outputs to
generate four-level LCD panel drive signals. The LCD panel drive
voltage is generated by a specific combination of display data, COM
scan signal, and FR signal. Figure 8 gives an example of SEG and
COM output waveforms.
Oscillator Circuit
This is an oscillator having a complete built-in type CR, and its
output is used as the display timing signal source or as the clock for
voltage booster circuit of the LCD power supply.
The oscillator circuit is available in master mode only.
The oscillator signal is divided and output as display clock at CL pin.
Power Supply Circuit
The power supply circuit generates voltage to drive the LCD panel
at low power consumption, and is available in S1D15300 master
mode only. The power supply circuit consists of a voltage booster
voltage regulator, and LCD drive voltage follower.
The power supply circuit built in the S1D15300 series is set for a
small-scale LCD panel and is inappropriate to a large-pixel panel
and a large-display-capacity LCD panel using multiple chips. As the
large LCD panel has the dropped display quality due to a large load
capacity, it must use an external power source.
Rev.1.4
1
2
3
4
CL
FR
DYO
COM0
COM1
RAM data
SEGn
Dual-frame AC driver waveforms
D2 D1 D0
1
0
0
0
1
1
0
0
1
1
1
0
32
33
*
Voltage
booster
OFF
OFF
OFF
1/33 duty
ON
1
2
3
regulator
Voltage
OFF
OFF
ON
ON
4
5
6
EPSON
follower
Voltage
Fig. 6
OFF
ON
ON
ON
28
The power circuit is controlled by Set Power Control command.
This command sets a three-bit data in Power Control register to
select one of eight power circuit functions. The external power
supply and part of internal power circuit functions can be used
simultaneously. The following explains how the Set Power
Control command works.
[Control by Set Power Control command]
D2 turns on when triple booster control bit goes high, and D2 turns
off when this bit goes low.
D1 turns on when voltage regulator control bit goes high, and D1
turns off when this bit goes low.
D0 turns on when voltage follower control bit goes high, and D0
turns off when this bit goes low.
[Practical combination examples]
Status 1: To use only the internal power supply.
Status 2: To use only the voltage regulator and voltage follower.
Status 3: To use only the voltage follower. input the external
Status 4: To use only an external power supply because the internal
power supply does not operate.
* The voltage booster terminals are CAP1+, CAP1-, CAP2+, CAP2-
* Combinations other than those shown in the above table are
and CAP3-.
possible but impractical.
29
External voltage Voltage booster Voltage regulator
30
voltage as V
V
input
V
1
—
OUT
V
31
to V
5
5
32
5
=Vout.
33
1
terminal
OPEN
OPEN
OPEN
Used
2
S1D15300 Series
3
4
terminal
5
OPEN
OPEN
Used
Used
V
V1
V4
V5
V
V1
V4
V5
V
V2
V3
V5
5–13
DD
DD
DD