SSD1339U3 ETC1 [List of Unclassifed Manufacturers], SSD1339U3 Datasheet - Page 28

• Manufacturer Part Number: SSD1339U3
• Description: 132RGB x 132 with 2 smart Icon lines Dot Matrix OLED/PLED Segment/Common Driver with Controller
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

It is a switching voltage generator circuit, designed for handheld applications. In SSD1339, internal DC-
DC voltage converter accompanying with an external application circuit (shown in below figure) can
generate a high voltage supply V
OLED driver block. Below application circuit is an example for the input voltage of 3V VDD to generate
V
*ALL PATHS TO AGND SHOULD BE CONNECTED AS SHORT AS POSSIBLE
Passive components selection:
The VCC output voltage level can be adjusted by changing the R1 and R2 resistor values, the reference
formula is:
VCC = 1.2 x (R1+R2) / R2
DC-DC Voltage Converter
Solomon Systech
CC
VDD
Components
L1
D1
Q1
R1, R2
R3
C1
C2
C3
C4
C5
C6
C7
of 12V @20mA ~ 30mA application.
DGND
+
C1
Typical Value
Inductor, 22µH
Schottky diode
MOSFET
Resistor
Resistor, 1.5
Capacitor, 1µF
Capacitor, 22µF
Capacitor, 1µF
Capacitor, 10nF
Capacitor, 1 ~ 10 µF
Capacitor, 0.1 ~ 1µF
Capacitor, 15nF
AGND
+
+
C5
C6
AGND
VDDB
VBREF
VSSB
CC
from a low voltage supply input V
L1
RESE
GDR
FB
Remark
2A
2A, 25V e.g. 1N5822
N-FET with low R
e.g. MGSF1N02LT1 [ON SEMICONDUCTOR]
1%,1/10W
1%, 1/2W
16V
Low ESR, 25V
16V
16V
16V
16V
16V
Q1
+
Jul 2005
C4
DS
D1
(on) and low Vth voltage.
R3
R1
DD
. V
P 28/59 Rev 1.1
CC
R2
C7
+
is the voltage supply to the
+
C2
AGND
+
C3
VCC
SSD1339