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
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