MITSUBISHI<Dig./Ana. INTERFACE>

M62255FP

GENERAL PURPOSE BATTERY CHARGER CONTROL IC

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New

Product

New

Product

TENTATIVE

TENTATIVE

8

BLOCK DESCRIPTION

(1) Battery Voltage Detect BLOCK

3

1

5.0V

0.31V

IN4

IN3

CK

CS

DI

IN2

IN1

1

1

x10

x10

Serial Data

from MCU

Serial-Parallel

Converter

Circuit

Reference

Voltage for

A-D Converter

to A-D input of MCU

Fig.1 Block Diagram of Multiplexer and Level Magnification Circuit

Multiplexer and Level Magnification Circuit of M62255 consists from Reference Voltage, 4times amplifier,

10times Amplifier and 4input Multiplexer.

When setting the reference voltage correspond to detecting voltage by serial data from MCU, this set

voltage supply to reference voltage for A-D converter. The difference between input voltage of IN1 - IN4

and reference voltage is multiplied by 4 at the center of this setting voltage.

converter of MCU is improved by 2-Bit as against the difference of IN1-IN4 input.