SGS-THOMSON TEA2025B, TEA205D Technical data
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 |
Parameter |
VS Supply Voltage
IO Ouput Peak Current
TJ Junction Temperature
Tstg Storage Temperature
TEA2025B
TEA2025D
STEREO AUDIO AMPLIFIER
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.
Test Conditions |
Unit |
15 |
V |
1.5 |
A |
150 |
°C |
150 |
°C |
BLOCK DIAGRAM
GND(Sub) IN 1+ |
FEED |
GND |
GND |
BOOT 1 |
OUT 1 |
THERMAL |
50Ω |
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10KΩ |
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PROTECT. |
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- |
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1 |
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1 |
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START |
+ |
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5KΩ |
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CIRCUIT |
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SVR |
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DECOUPLING |
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VS+ |
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BRIDGE |
IN 2+ |
- |
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2 |
50Ω |
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2 |
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+ |
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10KΩ |
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50Ω |
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D94AU120 |
FEED |
GND |
GND |
BOOT 2 |
OUT 2 |
June 1994 |
1/9 |
TEA2025B - TEA2025D
POWERDIP 12+2+2 PIN CONNECTION (Top view)
BRIDGE |
1 |
16 |
+Vs |
OUT.2 |
2 |
15 |
OUT.1 |
BOOT.2 |
3 |
14 |
BOOT.1 |
GND |
4 |
13 |
GND |
GND |
5 |
12 |
GND |
FEEDBACK |
6 |
11 |
FEEDBACK |
IN.2 (+) |
7 |
10 |
IN.1 (+) |
SVR |
8 |
9 |
GND (sub.) |
SO 12+4+4 PIN CONNECTION (Top view)
BRIDGE |
1 |
20 |
VCC |
OUT 2 |
2 |
19 |
OUT 1 |
BOOT 2 |
3 |
18 |
BOOT 1 |
GND |
4 |
17 |
GND |
GND |
5 |
16 |
GND |
GND |
6 |
15 |
GND |
GND |
7 |
14 |
GND |
FEEDBACK |
8 |
13 |
FEEDBACK |
IN 2(+) |
9 |
12 |
IN 1(+) |
SVR |
10 |
11 |
GND(Sub) |
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D94AU119 |
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THERMAL DATA
Symbol |
Description |
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SO 12+4+4 (*) |
PDIP 12+2+2 (**) |
Unit |
Rth j-case |
Thermal Resistance Junction-case |
Max |
15 |
15 |
°C/W |
Rth j-amb |
Thermal Resistance Junction-ambient |
Max |
65 |
60 |
°C/W |
(*) The Rth j-amb is measured with 4sq cm copper area heatsink
(**) The Rth j-amb is measured on devices bonded on a 10 x 5 x 0.15cm glass-epoxy substrate with a 35μm thick copper surface of 5 cm2.
2/9
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TEA2025B - TEA2025D |
ELECTRICAL CHARACTERISTICS (Tamb = 25°C, VCC = 9V, Stereo unless otherwise specified) |
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Symbol |
Parameter |
Test Conditions |
Min. Typ. Max. Unit |
VS |
Supply Voltage |
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IQ |
Quiescent Current |
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VO |
Quiescent Output Voltage |
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AV |
Voltage Gain |
Stereo |
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Bridge |
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AV |
Voltage Gain Difference |
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Rj |
Input Impedance |
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PO |
Output Power (d = 10%) Stereo 8 (per channel) |
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Bridge |
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d |
Distortion |
Vs = 9V; RL = 4Ω |
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SVR |
Supply Voltage Rejection |
f = 100Hz, VR = 0.5V, Rg = 0 |
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EN(IN) |
Input Noise Voltage |
RG = 0 |
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RG = 10 4Ω |
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CT |
Cross-Talk |
f = 1KHz, Rg = 10KΩ |
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3 |
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12 |
V |
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35 |
50 |
mA |
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4.5 |
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V |
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43 |
45 |
47 |
dB |
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49 |
51 |
53 |
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±1 |
dB |
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30 |
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KΩ |
9V |
4Ω |
1.7 |
2.3 |
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9V |
8Ω |
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1.3 |
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6V |
4Ω |
0.7 |
1 |
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6V |
8Ω |
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0.6 |
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6V |
16Ω |
|
0.25 |
|
W |
6V |
32Ω |
|
0.13 |
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3V |
4Ω |
|
0.1 |
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3V |
32Ω |
|
0.02 |
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12V |
8Ω |
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2.4 |
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9V |
8Ω |
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4.7 |
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6V |
4Ω |
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2.8 |
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6V |
8Ω |
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1.5 |
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W |
3V |
16Ω |
|
0.18 |
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3V |
32Ω |
|
0.06 |
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Stereo |
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0.3 |
1.5 |
% |
Bridge |
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0.5 |
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40 |
46 |
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dB |
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1.5 |
3 |
mV |
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3 |
6 |
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40 |
52 |
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dB |
Term. N° (PDIP) |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
DC VOLT (V) |
0.04 |
4.5 |
8.9 |
0 |
0 |
0.6 |
0.04 |
8.5 |
0 |
0.04 |
0.6 |
0 |
0 |
8.9 |
4.5 |
9 |
Figure 1: Bridge Application (Powerdip) |
Figure 2: Stereo Application (Powerdip) |
C1
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C6 |
C10 |
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C4 |
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C8 |
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C2 |
C5 |
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C11 |
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C7 |
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C9 |
C3 |
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3/9
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