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TDA7294 Datasheet(Fiches technique) 3 Page - STMicroelectronics

Numéro de pièce TDA7294
Description  100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
Télécharger  16 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
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TDA7294 Datasheet(HTML) 3 Page - STMicroelectronics

 
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THERMAL DATA
Symbol
Description
Value
Unit
Rth j-case
Thermal Resistance Junction-case
Max
1.5
°C/W
ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit VS =
±35V, RL =8Ω,GV = 30dB;
Rg =50
Ω;Tamb =25°C, f = 1 kHz; unless otherwise specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Supply Range
±10
±40
V
Iq
Quiescent Current
20
30
60
mA
Ib
Input Bias Current
500
nA
VOS
Input Offset Voltage
+10
mV
IOS
Input Offset Current
+100
nA
PO
RMS Continuous Output Power
d = 0.5%:
VS =
± 35V, RL =8Ω
VS =
± 31V, RL =6Ω
VS =
± 27V, RL =4Ω
60
60
60
70
70
70
W
W
W
Music Power (RMS)
IEC268.3 RULES -
∆t = 1s (*)
d = 10%
RL =8
Ω ;VS = ±38V
RL =6
Ω ;VS = ±33V
RL =4
Ω ;VS = ±29V (***)
100
100
100
W
W
W
d
Total Harmonic Distortion (**)
PO = 5W; f = 1kHz
PO = 0.1 to 50W; f = 20Hz to 20kHz
0.005
0.1
%
%
VS =
±27V, RL =4Ω:
PO = 5W; f = 1kHz
PO = 0.1 to 50W; f = 20Hz to 20kHz
0.01
0.1
%
%
SR
Slew Rate
7
10
V/
µs
GV
Open Loop Voltage Gain
80
dB
GV
Closed Loop Voltage Gain
24
30
40
dB
eN
Total Input Noise
A = curve
f = 20Hz to 20kHz
1
25
µV
µV
fL,fH
Frequency Response (-3dB)
PO = 1W
20Hz to 20kHz
Ri
Input Resistance
100
k
SVR
Supply Voltage Rejection
f = 100Hz; Vripple = 0.5Vrms
60
75
dB
TS
Thermal Shutdown
145
°C
STAND-BY FUNCTION (Ref: -VS or GND)
VST on
Stand-by on Threshold
1.5
V
VST off
Stand-by off Threshold
3.5
V
ATTst-by
Stand-by Attenuation
70
90
dB
Iq st-by
Quiescent Current @ Stand-by
1
3
mA
MUTE FUNCTION (Ref: -VS or GND)
VMon
Mute on Threshold
1.5
V
VMoff
Mute off Threshold
3.5
V
ATTmute
Mute AttenuatIon
60
80
dB
Note (*):
MUSIC POWER CONCEPT
MUSIC POWER is the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity)
1 sec after the application of a sinusoidal input signal of frequency 1KHz.
Note (**): Tested with optimized Application Board (see fig. 2)
Note (***): Limited by the max. allowable current.
TDA7294
3/16


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