参数资料
型号: SED1241TXX
元件分类: 显示控制器
英文描述: 24 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC
封装: TCP
文件页数: 13/67页
文件大小: 736K
代理商: SED1241TXX
8–20
EPSON
SED1240 Series
2 Using only the voltage regulating circuit and the voltage follower.
CAP1+
CAP1–
VOUT
V5
VDD, V0
C2
V1
V2
V3
V4
V5
VS1
VR
VSS
VSS2
SED124XDXX
CAP2–
CAP2+
[When using a V5 voltage regulating built-in resistor]
(Example of VSS2 = VSS)
External
power supply
CAP1+
CAP1–
VOUT
V5
R3
R2
R1
VDD, V0
C2
V1
V2
V3
V4
V5
VS1
VR
VSS
VSS2
SED124XDXX
CAP2–
CAP2+
[When using no V5 voltage regulating built-in resistor]
(Example of VSS2 = VSS)
External
power supply
CAP1+
CAP1–
VOUT
V5
VDD, V0
C2
V1
V2
V3
V4
V5
VS1
VR
VSS
VSS2
SED124XDXX
CAP2–
CAP2+
(Example of VSS2 = VSS)
External
power supply
CAP1+
CAP1–
VOUT
VDD, V0
V1
V2
V3
V4
V5
VS1
VR
VSS
VSS2
SED124XDXX
CAP2–
CAP2+
(Example of VSS2 = VSS)
External
power supply
Reference set values: C1: 0.47 to 4.7
F It is recommended to set optimum values suitable for the panel size in
C2: 0.1 to 4.7
F capacitors C1 and C2 while watching the liquid crystal display and drive
waveforms.
*1 Because the input impedance of the VR pin is high, use a short wire and a shielding wire.
*2 Determine C1 and C2 values depending on the size of the LCD panel to be driven. Set proper values that permit
stabilizing the liquid crystal drive voltages.
[Setting example] Turn on the voltage regulating circuit and the voltage follower and give a voltage to VOUT from
the outside.
Display a LCD heavy load pattern like horizontal stripes and determine a C2 value so that the
liquid crystal drive voltages (V1 to V5) may be stabilized. However, it is necessary to set the
same capacity value in C2 in every case.
Next, turn on the built-in power supply and determine a C1 value.
相关PDF资料
PDF描述
SED1278D0G 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC
SED1278F0H 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80
SED1278D 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC80
SED1278F 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80
SED1278F0G 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80
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