E0C88316
● LCD Driver
The Typ. values of the LCD drive voltage shown in the following table shift in difference of panel load (panel size, drive duty,
display segment number). Therefore, these should be evaluated by connecting to the actual panel to be used. Moreover, if the
display is uneven with a large panel load, connect a resistor (R1) between the VSS and VC1 terminal. (it is necessary in 1/32 duty
driving.)
(Unless otherwise specified: VDD = VC2 (LCX = FH) +0.1 to 5.5V, VSS = 0V, Ta = 25°C, C1–C9 = 0.1µF)
Characteristic
LCD drive voltage
Symbol
Condition
Min.
Typ.
Max.
Unit Note
1
V
V
V
V
V
C1
C2
C3
C4
C5
*
*
*
*
*
0.18VC5
0.39VC5
0.59VC5
0.80VC5
0.22VC5
0.43VC5
0.63VC5
0.84VC5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
2
3
4
5
LCX = 0H
LCX = 1H
LCX = 2H
LCX = 3H
LCX = 4H
LCX = 5H
LCX = 6H
3.89
3.96
4.04
4.11
4.18
4.26
4.34
4.42 Typ×1.06
4.50
4.58
4.66
4.74
4.82
4.90
4.99
5.08
4.73
4.83
4.92
5.02
5.11
5.21
5.30
5.40 Typ×1.06
5.50
5.60
5.70
5.81
5.93
6.05
6.17
TYPE A
(4.5V)
LCX = 7H Typ×0.94
LCX = 8H
LCX = 9H
LCX = AH
LCX = BH
LCX = CH
LCX = DH
LCX = EH
LCX = FH
LCX = 0H
LCX = 1H
LCX = 2H
LCX = 3H
LCX = 4H
5
*
V
C5
TYPE B
(5.5V)
LCX = 5H
LCX = 6H
LCX = 7H Typ×0.94
LCX = 8H
LCX = 9H
LCX = AH
LCX = BH
LCX = CH
LCX = DH
LCX = EH
LCX = FH
6.29
1 Connects 1MΩ load resistor between VSS and VC1
2 Connects 1MΩ load resistor between VSS and VC2
3 Connects 1MΩ load resistor between VSS and VC3
.
.
.
4 Connects 1MΩ load resistor between VSS and VC4
.
.
5 Connects 1MΩ load resistor between VSS and VC5
7
SEIKO [ SEIKO EPSON CORPORATION ]
