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參數(shù)資料
| 型號： | HCD66727A03BP |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| 中文描述： | 低功耗點(diǎn)陣液晶顯示控制器/鍵掃描功能驅(qū)動程序 |
| 文件頁數(shù)： | 63/97頁 |
| 文件大?。?/td> | 513K |
| 代理商： | HCD66727A03BP |
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HD66727
63
Example of Using Internal Operational Amplifier when Driving Large Size of LCD
The driving current of the internal operational amplifier in the HD66727 is reduced to control the
consumption current. When load current is apparently large such as when driving large size of LCD panel,
insert a capacitor between V1OUT–V5OUT outputs and V
CC
power supply, and stabilize the output level of
the operational amplifier. Especially the capacitors for V1OUT and V4OUT must be inserted when 1/26
duty or 1/34 duty drives.
C1
C2
Vci
V5OUT2
V5OUT3
+
GND
+
V
CC
V2
V3
V
CC
R
R
R
R
VR
–
+
–
+
–
+
–
+
–
+
V
EE
Booster
+
0.47
μ
F
to 1
μ
F
0.47
μ
F
to 1
μ
F
0.47
μ
F
to 1
μ
F
OPOFF = GND
Large size of LCD panel
R
R
GND
HD66727
V
CC
V1
V1OUT
+
V2OUT
V3OUT
V4OUT
V5OUT
+
+
+
+
SEG1–SEG60
COM1–COM16
COMS1–COMS2
LCD
multiplexing
driver
V3
V2
V4
V5
Note : The capacitors for V1OUT and V4OUT must be inserted when 1/26 duty or 1/34 duty drives.
0.1
μ
F to 0.5
μ
F*
Figure 36 Operational Amplifier Output Stabilization Circuit Example when Driving Large Size of
LCD Panel
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCD66727A04 | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66727A04BP | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66730A00 | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66730A01 | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66731A00BP | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCD66727A04 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66727A04BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HCD66730A00 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66730A01 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
| HCD66731A00BP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
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