LC75838W Datasheet, PDF (34/36 Pages) ON Semiconductor – Duty General-Purpose LCD Driver

LC75838W
Sample Application Circuit 3
1/9 duty, 1/4 bias drive technique (for use with normal panels)
LCD panel
+5V
VDD
VSS
+8V
VLCD
OPEN
VLCD0
VLCD1
VLCD2
CCC
VLCD3
VLCD4 *2
C0.047F
OSC
From
INH
CE
the controller
CL
DI
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
S40/COM9
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S36
S37
S38
COM10/S39
P1
P2
P3
General-purpose output ports
Used with the backlight
controller or other circuit.
Note: *2. If a variable resistor is not used for display contrast fine adjustment, the VLCD4 pin must be connected to
ground.
Sample Application Circuit 4
1/9 duty, 1/4 bias drive technique (for use with large panels)
+5V
+8V
R
R
R
CCC R
C0.047F
10kR2.2k
VDD
VSS
VLCD
VLCD0
VLCD1
VLCD2
VLCD3
VLCD4 *2
OSC
INH
From
CE
the controller
CL
DI
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
S40/COM9
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S36
S37
S38
COM10/S39
P1
P2
P3
LCD panel
General-purpose output ports
Used with the backlight
controller or other circuit.
Note: *2. If a variable resistor is not used for display contrast fine adjustment, the VLCD4 pin must be connected to
ground.
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