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參數(shù)資料
| 型號： | HD61602 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Segment Type LCD Driver(段類型LCD驅(qū)動器) |
| 中文描述： | 段類型LCD驅(qū)動器（段類型液晶驅(qū)動器） |
| 文件頁數(shù)： | 28/37頁 |
| 文件大小： | 229K |
| 代理商： | HD61602 |
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HD61602/HD61603
1257
When External Drive Power Supply Is Used
An external power supply can be used by setting external voltage switching bits of mode setting data to 1.
When a large liquid crystal display panel is used, in multichip designs, which need accurate liquid crystal
drive voltage, use the external power supply. See Figure 22.
R2–R5 is connected in series between VDD and VSS, and by these resistance ratio each voltage of V
and VLCD is generated and then supplied to V1, V2, and V3. C2–C4 are smoothing capacitors.
When regulating brightness, change the resistance value by setting R5 variable resistance.
1.6
2.0
3
4
5
6
Min
Typ
Max
VDD–VSS (V)
2
V
Figure 21 Voltage Characteristics between VDD and Vref1
NC
NC
VDD
VSS
VREF1
VREF2
VC1
VC2
V1
V2
V3
R2
R3
R4
R5
C2
C3
C4
T
r
SB
C6
Positive
power
supply
(3) 1/3 and 1/4 Duty Cycle Drive
NC
NC
VDD
VSS
VREF1
VREF2
VC1
VC2
V1
V2
V3
R2
R3
R5
C2
C3
T
r
SB
C6
Positive
power
supply
(2) 1/2 Duty Cycle Drive
NC
NC
VDD
VSS
VREF1
VREF2
VC1
VC2
V1
V2
V3
R2
C4
R5
T
r
SB
C6
Positive
power
supply
(1) Static Drive
C6
≥
1
μ
F
Notes: 1.
2.
When standby mode is used, a transistor is required.
R2–R5 should be some k
–some tens of k
, and C2–C4 should be 0.1
μ
F–0.3
μ
F.
Figure 22 Example when External Drive Voltage Is Used
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| HD61604 | Segment Type LCD Driver(段類型LCD驅(qū)動器) |
| HD61605 | Segment Type LCD Driver(段類型LCD驅(qū)動器) |
| HD61830A00H | LCDC (LCD Timing Controller) |
| HD61830 | LCDC (LCD Timing Controller) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD61602R | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER |
| HD61602RH | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER |
| HD61603 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER |
| HD61603R | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:SEGMENT TYPE LCD DRIVER |
| HD61604 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
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