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參數(shù)資料
| 型號： | SSD1339Z |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 132RGB x 132 with 2 smart Icon lines Dot Matrix OLED/PLED Segment/Common Driver with Controller |
| 中文描述： | 132RGB × 132 2智能圖標行點陣的OLED /短差段/驅(qū)動器與控制器通用 |
| 文件頁數(shù)： | 28/59頁 |
| 文件大?。?/td> | 916K |
| 代理商： | SSD1339Z |
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Solomon Systech
Jul 2005
P 28/59 Rev 1.1
SSD1339
DC-DC Voltage Converter
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
CC
from a low voltage supply input V
DD
. V
CC
is the voltage supply to the
OLED driver block. Below application circuit is an example for the input voltage of 3V VDD to generate
V
CC
of 12V @20mA ~ 30mA application.
L1
VDDB
VBREF
VSSB
GDR
RESE
FB
+
VDD
AGND
+
DGND
AGND
+
AGND
+
VCC
D1
Q1
R1
R2
+
C4
C3
C2
C1
C5
+
C6
+
C7
R3
*ALL PATHS TO AGND SHOULD BE CONNECTED AS SHORT AS POSSIBLE
Passive components selection:
Components Typical Value
L1
Inductor, 22μH
D1
Schottky diode
Q1
MOSFET
Remark
2A
2A, 25V e.g. 1N5822
N-FET with low R
DS
(on) and low Vth voltage.
e.g. MGSF1N02LT1 [ON SEMICONDUCTOR]
1%,1/10W
1%, 1/2W
16V
Low ESR, 25V
16V
16V
16V
16V
16V
R1, R2
R3
C1
C2
C3
C4
C5
C6
C7
Resistor
Resistor, 1.5
Capacitor, 1μF
Capacitor, 22μF
Capacitor, 1μF
Capacitor, 10nF
Capacitor, 1 ~ 10 μF
Capacitor, 0.1 ~ 1μF
Capacitor, 15nF
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
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