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 < V
CC
< 15V
P = 2
•
1W, V
CC
= 6V, R
L
= 4Ω
P = 2
•
2.3W, V
CC
= 9V, R
L
= 4Ω
P = 2
•
0.1W, V
CC
= 3V, R
L
= 4Ω
ABSOLUTE MAXIMUM RATINGS
Symbol
V
S
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.
Parameter
Supply Voltage
Ouput Peak Current
Junction Temperature
Storage Temperature
Test Conditions
15
Unit
V
I
O
T
J
T
stg
1.5
150
150
A
°C
°C
BLOCK DIAGRAM
GND(Sub) IN 1+ FEED
50Ω
10KΩ
-
START
CIRCUIT
SVR
+
GND
GND
BOOT 1
OUT 1
THERMAL
PROTECT.
1
1
5KΩ
DECOUPLING
VS+
BRIDGE
50Ω
IN 2+
-
+
2
10KΩ
2
50Ω
D94AU120
FEED
GND
GND
BOOT 2
OUT 2
June 1994
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