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| 型號(hào)： | KS0078 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD |
| 中文描述： | 34COM/120SEG驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 65/71頁(yè) |
| 文件大小： | 563K |
| 代理商： | KS0078 |
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KS0078 34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
POWER SUPPLY FOR DRIVING LCD PANEL
1) When an external power supply is used
2) When an internal booster is used
* 1. Boosted output voltage should not exceed the maximum value (13 V) of the LCD driving voltage.
Especially, a voltage of over 4.3V should not be input to the reference voltage
(Vci) when boosting three times.
2. A voltage of over 5.5V should not be input to the reference voltage (Vci) when boosting
twice.
3. The value of resistance, according to the number of lines, duty ratio and the bias, is
shown below. (Refer to Table 13)
Table 13. Duty Ratio and Power Supply for LCD Driving
Item
Data
Number of lines
1
2 or 4
Duty ration
1/17
1/33
BIas
1/5
1/6.7
Divided resistance
R
R
R
R0
R
2.7R
(Boosting three times)
R
R
R0
VDD
V1
V2
V3
V4
V5
V
CI
GND
C1
C2
V5OUT2
V5OUT3
R
R
VDD
+
-
+
-
1
μ
F
1
μ
F+
-
1
μ
F+
-
Can be detached
If not using
powr down mode
(Boosting twice)
R
R
R0
VDD
V1
V2
V3
V4
V5
V
CI
GND
C1
C2
V5OUT2
V5OUT3
R
R
VDD
+
-
+
-
1
μ
F
Can be detached
If not using
powr down mode
1
μ
F
-
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