ML9051G Datasheet, PDF (39/74 Pages) OKI electronic componets – 132-Channel LCD Driver with Built-in RAM for LCD Dot Matrix Displays

OKI Semiconductor
PEDL9051G-01
ML9051G
(5) When only the V/F circuits are used
(6) When not using the internal power supply
V_DD
V_DD
V_SS
External
power
supply
C2: *2
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
C2 +
C2 +
C2 +
C2 +
IRS M/S
V_IN
VC6+
VC4+
VS2–
VC5+
VC3+
VS1–
V1
VR
V_SS
V_OUT
V1
V2
V3
V4
V5
OPEN
OPEN
IRS M/S
V_IN
VC6+
VC4+
OPEN VS2–
OPEN
OPEN
OPEN
VC5+
VC3+
VS1–
V1
OPEN _VR
V_SS
V_SS
OPEN
V_OUT
V1
External
V2
power
V3
supply
V4
V5
Note: When trace resistance external to COG-mounted chip does not exist,
➀ when C1 (*1) = 0.9 µF to 5.7 µF, C2 (*2) = 0.42 µF to 1.2 µF,
use in the range Rall (*3) = 1 MΩ to 5 MΩ.
➁ when C1 (*1) = 3.7 µF to 5.7 µF, C2 (*2) = 0.42 µF to 1.2 µF,
use in the range Rall (*3) = 500 kΩ to 5 MΩ.
Make sure that voltage multiplier output voltage, and V1 output voltage have enough margin
before using this LSI.
• Initial setting
Note: If electric charge remains in smoothing capacitor connected between the LCD driver voltage output pins (V1
to V5) and the V_SS pin, a malfunction might occur: the display screen gets dark for an instant when powered
on.
To avoid a malfunction at power-on, it is recommended to follow the flowchart in the “EXAMPLES OF
SETTINGS FOR THE INSTRUCTIONS” section in page 54.
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