LAG640D 查看數據表（PDF） - Mitsumi

零件编号

产品描述 (功能)

比赛名单

LAG640D

IC for Multifunction Telephones

Mitsumi 

MITSUMI

IC for Multifunction Telephones LAG640

IC for Multifunction Telephones

Monolithic IC LAG640

Outline

This IC was developed for use in multifunctional telephones with security features; it has the following

functions.

Features

1. Incorporates efficient switching regulator with broad input voltage range

VOUT 5V±0.25

IL 250mA (13~45V)

VIN 15~45V

2. Internal data transmission/reception circuits

Data can be superposed on the power supply line for transmission.

Can be switched between two different input modes

3. Internal system reset circuit

5V line abnormal voltage detection circuit

Watchdog timer reset circuit

4. Internal speaker amp

260 mW typ. at 8Ω load

Mute pin

5. Internal beep sound generator circuit

With pin to vary audio volume (also used to turn beep sound on and off)

Package

SDIP-30A (LAG640D)

Absolute Maximum Ratings (Ta=25°C)

Item

Operating temperature

Storage temperature

Power supply current

Allowable loss

Symbol

TOPR

TSTG

VCC max.

Pd

Ratings

-20~+70

-40~+125

46

750

Units

°C

°C

V

mW

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