SPEC No.

LCY-12T09303B

MODEL No.

LS013B4DN02

PAGE

25

10. External Power Supply Circuit

An external power supply circuit is necessary to drive the Pixel Memory LCD with the 3V battery.

Table 1-1 shows power supply IC of the recommendation.

Table 1-1

Maker

Model Number

Note

SII

S-8821

Charge pump type

National Semiconductor

LM2750

Charge pump type

Refer to specifications of each power supply IC for a detailed specification.

Set the constant value after it evaluating it sufficiently by an actual application when you use it.

Electrical specification

Table 2-1

Vin [V]

Vout

Model Number

min

max

min

typ

max

Iout

[A]

S-8821

2.8

5.0

4.9

5.0

5.1

0.04

LM2750

2.7

5.6

4.8

5.0

5.2

0.04

Refer to specifications of each power supply IC for a detailed specification.

Set the constant value after it evaluating it sufficiently by an actual application when you use it.

Reference circuit

The reference circuit is shown below.

S-8821

LM2750