TEA2025D 데이터 시트보기 (PDF) - STMicroelectronics

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TEA2025D

STEREO AUDIO AMPLIFIER

STMicroelectronics 

TEA2025B

®

TEA2025D

STEREO AUDIO AMPLIFIER

DUAL OR BRIDGE CONNECTION MODES

FEW EXTERNAL COMPONENTS

SUPPLY VOLTAGE DOWN TO 3V

HIGH CHANNEL SEPARATION

VERY LOW SWITCH ON/OFF NOISE

MAX GAIN OF 45dB WITH ADJUST EXTER-

NAL RESISTOR

SOFT CLIPPING

THERMAL PROTECTION

3V < VCC < 15V

P = 2 • 1W, VCC = 6V, RL = 4Ω

P = 2 • 2.3W, VCC = 9V, RL = 4Ω

P = 2 • 0.1W, VCC = 3V, RL = 4Ω

ABSOLUTE MAXIMUM RATINGS

Symbol

VS Supply Voltage

IO Ouput Peak Current

TJ Junction Temperature

Tstg Storage Temperature

Parameter

POWERDIP 12+2+2

SO20 (12+4+4)

ORDERING NUMBERS: TEA2025B (PDIP)

TEA2025D (SO)

DESCRIPTION

The TEA2025B/D is a monolithic integrated circuit

in 12+2+2 Powerdip and 12+4+4 SO, intended for

use as dual or bridge power audio amplifier port-

able radio cassette players.

Test Conditions

15

1.5

150

150

Unit

V

A

°C

°C

BLOCK DIAGRAM

SVR

IN 2+

GND(Sub) IN 1+ FEED

GND

GND BOOT 1

OUT 1

THERMAL

PROTECT.

START

CIRCUIT

50Ω

10KΩ

-

1

1

+

DECOUPLING

-

2

2

+

10KΩ

5KΩ

50Ω

VS+

BRIDGE

50Ω

D94AU120

FEED

GND

GND BOOT 2 OUT 2

September 2003

1/9

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