TEA2025B TEA2025D
STEREO AUDIO AMPLIFIER
DUAL OR BRIDGE CONNECTION MODES FEW EXTERNAL COMPONENTS SUPPLY VOLTAGE DOWN TO ...
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 EXTERNAL 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
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 portable radio cassette players.
Parameter Supply
Voltage Ouput Peak Current Junction Temperature Storage Temperature
Test Conditions
15
Unit
V
IO
TJ Tstg
1.5 150 150
A °C °C
BLOCK DIAGRAM
GND(Sub) IN 1+ FEED 50Ω GND GND BOOT 1 OUT 1
THERMAL PROTECT.
10KΩ
START CIRCUIT SVR +
1
1 5KΩ DECOUPLING 50Ω VS+ BRIDGE
IN 2+
+
2 10KΩ
2
50Ω
D94AU120
FEED
GND
GND
BOOT 2
OUT 2
June 1994
1/9
TEA2025B - TEA2025D
POWERDIP 12+2+2 PIN CONNECTION (Top view)
BRIDGE OUT.2 BOOT.2 GND GND FEEDBACK IN.2 (+) SVR
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
+Vs OUT.1 BOOT.1 GND GND FEEDBACK IN.1 (+) GND (sub.)
SO 12+4+4 PIN CONNECTION (Top view)
BRIDGE OUT 2 BOOT 2 GND GND GND GND FEEDBACK IN 2(+) SVR
1 2 3 4 5 6 7 8 9 10
D94AU119
20 19 18 17 16 15 14 13 12 11
VCC OUT 1 BOOT 1 GND GND GND GND FEEDBACK IN 1(+) GND(Sub)
THERMAL DATA
Symbol R th j-case R...
