INTEGRATED CIRCUITS
DATA SHEET
TDA2611A
5 W audio power amplifier
Product specification
November 1982
NXP Semiconductors
Product specification
5 W audio power amplifier
TDA2611A
The TDA2611A is a monolithic integrated circuit in a 9-lead single in-line (SIL) plastic package with a high supply voltage
audio amplifier. Special features are:
•
possibility for increasing the input impedance
•
single in-line (SIL) construction for easy mounting
•
very suitable for application in mains-fed apparatus
•
extremely low number of external components
•
thermal protection
•
well defined open loop gain circuitry with simple quiescent current setting and fixed integrated closed loop gain.
QUICK REFERENCE DATA
Supply voltage range
Repetitive peak output current
Output power at d
tot
=
10%
V
P
=
18 V; R
L
=
8
Ω
V
P
=
25 V; R
L
=
15
Ω
Total harmonic distortion at P
o
<
2 W; R
L
=
8
Ω
Input impedance
Total quiescent current at V
P
=
18 V
Sensitivity for P
o
=
2,5 W; R
L
=
8
Ω
Operating ambient temperature
Storage temperature
P
o
P
o
d
tot
|Z
i
|
I
tot
V
i
T
amb
T
stg
typ.
typ.
typ.
typ.
typ.
typ.
4,5 W
5 W
0,3 %
45 kΩ
25 mA
55 mV
V
P
I
ORM
<
6 to 35 V
1,5 A
−25
to
+
150
°C
−55
to
+
150
°C
PACKAGE OUTLINE
9-lead SIL; plastic (SOT110B); SOT110-1.
November 1982
2
NXP Semiconductors
Product specification
5 W audio power amplifier
TDA2611A
handbook, full pagewidth
1
TR4
R5
R6
R11
TR14
TR5
TR7
D8
TR20
R17
R9
TR12
D5
TR11
TR13
TR10
R14
D6
D3
TR2
R7
R3
TR6
TR21
2
D4
D7
R13
TR19
TR8
C1
D9
TR15
TR16
R15
TR18
D1
D2
R2
TR1
TR3
R1
6
R4
TR9
R8
R10
R12
TR17
R16
4
8
5
7
9
MGD831
Fig.1 Circuit diagram; pin 3 not connected.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage
Non-repetitive peak output current
Repetitive peak output current
Total power dissipation
Storage temperature
Operating ambient temperature
V
P
I
OSM
I
ORM
T
stg
T
amb
max.
max.
max.
35 V
3A
1,5 A
see derating curves Fig. 2
−55
to
+
150
°C
−25
to
+
150
°C
November 1982
3
NXP Semiconductors
Product specification
5 W audio power amplifier
TDA2611A
handbook, full pagewidth
8
MBL006
Ptot
(W)
6
infinate
heatsink
4
without
heatsink
2
0
−50
0
50
100
Tamb (°C)
150
Fig.2 Power derating curves.
HEATSINK EXAMPLE
Assume V
P
=
18 V; R
L
=
8
Ω;
T
amb
=
60
°C
maximum; T
j
=
150
°C
(max. for a 4 W application into an 8
Ω
load, the
maximum dissipation is about 2,2 W).
The thermal resistance from junction to ambient can be expressed as:
150
–
60
R
th j-a
=
R
th j-tab
+
R
th tab-h
+
R
th h-a
=
---------------------
=
41 K/W.
-
2
,
2
Since R
th j-tab
=
11 K/W and R
th tab-h
=
1 K/W, R
th h-a
=
41
−
(11
+
1)
=
29 K/W.
November 1982
4
NXP Semiconductors
Product specification
5 W audio power amplifier
D.C. CHARACTERISTICS
Supply voltage range
Repetitive peak output current
Total quiescent current at V
P
=
18 V
V
P
I
ORM
I
tot
TDA2611A
6 to 35 V
<
typ.
1,5 A
25 mA
A.C. CHARACTERISTICS
T
amb
=
25
°C;
V
P
=
18 V; R
L
=
8
Ω;
f
=
1 kHz unless otherwise specified; see also Fig. 3
A.F. output power at d
tot
=
10%
V
P
=
18 V; R
L
=
8
Ω
V
P
=
12 V; R
L
=
8
Ω
V
P
=
8,3 V; R
L
=
8
Ω
V
P
=
20 V; R
L
=
8
Ω
V
P
=
25 V; R
L
=
15
Ω
Total harmonic distortion at P
o
=
2 W
Frequency response
Input impedance
Noise output voltage at R
S
=
5 kΩ; B
=
60 Hz to 15 kHz
Sensitivity for P
o
=
2,5 W
Note
1. Input impedance can be increased by applying C and R between pins 5 and 9 (see also Figures 6 and 7).
|Z
i
|
V
n
V
i
P
o
P
o
P
o
P
o
P
o
d
tot
>
typ.
typ.
typ.
typ.
typ.
typ.
<
>
typ.
typ.
<
typ.
4W
4,5 W
1,7 W
0,65 W
6W
5W
0,3 %
1%
15 kHz
45 kΩ
(1)
0,2 mV
0,5 mV
55 mV
44 to 66 mV
November 1982
5
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