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參數(shù)資料
| 型號： | SSD1852T2R1 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | LCD Segment / Common Driver With Controller CMOS |
| 中文描述： | LCD段/與普通的CMOS驅(qū)動器控制器 |
| 文件頁數(shù)： | 18/55頁 |
| 文件大小： | 637K |
| 代理商： | SSD1852T2R1 |
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SSD1852
Rev 1.0
01/2003
SOLOMON
13
7.8
LCD Driving voltage Generator and Regulator
This module generates the LCD voltage needed for display output. It takes a single supply
input and generates necessary bias voltages. It consists of:
7.8.1 3X, 4X, 5X and 6X DC-DC voltage converter
Please refer to Figure 5.
Figure 5 - DC-DC Converter Configurations
7.8.2 Voltage Regulator
The feedback gain control for LCD driving contrast curves can be selected by INTRS pin
to either internal (INTRS pin = H) or external (INTRS pin = L). If internal resistor network is
enabled, eight settings can be selected through software command. If external control is
selected, external resistors are required to be connected between V
SS
and V
R
(R
1
), and
between V
R
and V
L6
(R
2
). See application circuit diagrams for detail connections.
7.8.3 Contrast Control (Voltages referenced to V
SS
)
Software control of the 64-contrast voltage levels at each voltage regulator feedback
gains. The equations of calculating the LCD driving voltage are given as the following,
V
SS
V
CC
C
5P
C
3P
C
1N
C
1P
C
2P
C
2N
C
4P
+
-
-
+
-
+
3X Boost
V
SS
V
CC
C
5P
C
3P
C
1N
C
1P
C
2P
C
2N
C
4P
+
-
-
+
-
+
+
4X Boost
V
SS
V
CC
C
5P
C
3P
C
1N
C
1P
C
2P
C
2N
C
4P
+
-
+
-
+
-
+
+
5X Boost
+
-
V
SS
V
CC
C
5P
C
3P
C
1N
C
1P
C
2P
C
2N
C
4P
+
-
+
-
+
-
+
+
6X Boost
Remarks: capacitor = 1.0 ~ 4.7uF
out
L
V
R
R
V
*
1
1
2
6
+
=
ref
out
V
V
*
210
63
1
=
α
where
,
V
V
ref
4
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SSD1852TR1 | LCD Segment / Common Driver With Controller CMOS |
| SSD1852Z | LCD Segment / Common Driver With Controller CMOS |
| SSD1854U | LCD Segment / Common Driver with Controller CMOS |
| SSD1854Z | LCD Segment / Common Driver with Controller CMOS |
| SSD1854 | LCD Segment / Common Driver with Controller CMOS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SSD1852TR1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Segment / Common Driver With Controller CMOS |
| SSD1852Z | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Segment / Common Driver With Controller CMOS |
| SSD1854 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Segment / Common Driver with Controller CMOS |
| SSD1854U | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Segment / Common Driver with Controller CMOS |
| SSD1854Z | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Segment / Common Driver with Controller CMOS |
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