SGS-THOMSON TDA1904 Technical data
!
TDA1904
4W AUDIO AMPLIFIER
HIGH OUTPUT CURRENT CAPABILITY
PROTECTION AGAINST CHIP OVERTEMPERATURE
LOW NOISE
HIGH SUPPLY VOLTAGE REJECTION
SUPPLY VOLTAGE RANGE: 4V TO 20V
DESCRIPTION
The TDA 1904 is a monolithic integrated circuit in POWERDIP package intended for use as low-fre- quency power amplifier in wide range of applications in portable radio and TV sets.
ABSOLUTE MAXIMUM RATINGS
Powerdip
(8 + 8)
ORDERING NUMBER : TDA 1904
Symbol |
Parameter |
Value |
Unit |
VS |
Supply voltage |
20 |
V |
IO |
Peak output current (non repetitive) |
2.5 |
A |
IO |
Peak output current (repetitive) |
2 |
A |
Ptot |
Total power dissipation at Tamb = 80°C |
1 |
W |
|
at Tpins = 60°C |
6 |
W |
Tstg, Tj |
Storage and junction temperature |
-40 to 150 |
°C |
TEST AND APPLICATION CIRCUIT
(*) R4 is necessary only for Vs < 6V.
March 1993 |
1/10 |
TDA1904
PIN CONNECTION (top view)
SCHEMATIC DIAGRAM
THERMAL DATA
Symbol |
Parameter |
|
Value |
Unit |
Rth-j-case |
Thermal resistance junction-pins |
max |
15 |
°C/W |
Rth-j-amb |
Thermal resistance junction-ambient |
max |
70 |
°C/W |
2/10
TDA1904
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb = 25 °C, Rth (heatsink) = 20 °C/W, unless otherwisw specified)
Symbol |
Parameter |
Test conditions |
Vs |
Supply voltage |
Vo |
Quiescent output voltage |
Id |
Quiescent drain current |
Po |
Output power |
Vs = 4V
Vs = 14V
Vs = 9V
Vs = 14V
d = 10% |
f = 1 KHz |
Vs = 9V |
RL = 4Ω |
Vs = 14V |
|
Vs = 12V |
|
Vs = 6V |
|
d |
Harmonic distortion |
Vi |
Input saturation voltage |
|
(rms) |
Ri Input resistance (pin 8)
ηEfficiency
BW |
Small signal bandwidth (-3 dB) |
Gv |
Voltage gain (open loop) |
Gv |
Voltage gain (closed loop) |
eN |
Total input noise |
SVR |
Supply voltage rejection |
Tsd Thermal shut-down case temperature
f = 1 KHz
Vs = 9V RL = 4Ω Po = 50 mW to 1.2W
Vs = 9V
Vs = 14V
f = 1 KHz
f = 1 KHz |
RL = 4Ω Po = 2W |
|
Vs = 9V |
||
Vs = 14V |
RL = 4Ω Po = 4.5W |
|
Vs = 14V |
RL = 4Ω |
|
Vs = 14V |
|
|
f = 1 KHz |
|
|
Vs = 14V |
RL = 4Ω |
|
f = 1 KHz |
Po = 1W |
|
Rg = 50Ω |
(°) |
|
Rg = 10 KΩ |
||
|
||
Rg = 50Ω |
(°°) |
|
Rg = 10 KΩ |
||
|
Vs = 12V
fripple = 100 Hz Rg = 10 KΩ Vripple = 0.5 Vrms
Ptot = 2W
Min. |
Typ. |
Max. |
Unit |
4 |
|
20 |
V |
|
2.1 |
|
V |
|
7.2 |
|
|
|
|
|
|
|
8 |
15 |
mA |
|
10 |
18 |
|
|
|
||
1.8 |
2 |
|
|
4 |
4.5 |
|
W |
3.1 |
|
|
|
0.7 |
|
|
|
|
0.1 |
0.3 |
% |
0.8 |
|
|
V |
1.3 |
|
|
|
|
|
|
|
55 |
150 |
|
KΩ |
|
70 |
|
% |
|
65 |
|
|
|
40 to 40,000 |
|
Hz |
|
75 |
|
dB |
39.5 |
40 |
40.5 |
dB |
|
1.2 |
|
μV |
|
2 |
4 |
|
|
|
||
|
2 |
|
μV |
|
3 |
|
|
|
|
|
|
40 |
50 |
|
dB |
|
120 |
|
ÉC |
Note: (°) Weighting filter = curve A.
(°°) Filter with noise bendwidth: 22Hz to 22 KHz.
3/10
Loading...