S6B0759 データシートの表示（PDF） - Samsung

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S6B0759

81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD

Samsung 

S6B0759

PRELIMINARY SPEC. VER. 1.2

81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD

PIN DESCRIPTION

POWER SUPPLY

Table 2. Power Supply Pins

Name

I/O

Description

VDD

VSS1

VSS2

Supply Power supply

Supply Ground VSS1 and VSS2 must be shorted to External wire.

LCD driver supplies voltages

The voltage determined by LCD pixel is impedance converted by an operational amplifier

for application.

V0

Voltages should have the following relationship;

V1

V0 ≥ V1 ≥ V2 ≥ V3 ≥ V4 ≥ VSS

V2

I/O When the internal power circuit is active, these voltages are generated as following table

V3

according to the state of LCD bias.

V4

LCD bias

V1

V2

V3

V4

1/N bias

(N-1) / N x V0 (N-2) / N x V0

(2/N) x V0

(1/N) x V0

NOTE: N = 4 to 11

LCD DRIVER SUPPLY

Table 3. LCD Driver Supply Pins

Name

I/O

Description

C1-

C1+

C2-

C2+

C3+

C4+

C5+

VOUT

VCI

VR

REF

VEXT

O Capacitor 1 negative connection pin for voltage converter

O Capacitor 1 positive connection pin for voltage converter

O Capacitor 2 negative connection pin for voltage converter

O Capacitor 2 positive connection pin for voltage converter

O Capacitor 3 positive connection pin for voltage converter

O Capacitor 4 positive connection pin for voltage converter

O Capacitor 5 positive connection pin for voltage converter

I/O Voltage converter input / output pin

I

Voltage converter input voltage pin

Voltages should have the following relationship: VDD ≤ VCI ≤ V0

I

V0 voltage adjustment pin

It is valid only when on-chip resistors are not used (INTRS = "L")

Selects the external VREF voltage via VEXT pin

I − REF = "L": using the external VREF

− REF = "H": using the internal VREF

I

Externally input reference voltage (VREF) for the internal voltage regulator

It is valid only when REF is "L".

7

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