tda2615, Ham- CB Radio, Karty katalogowe
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INTEGRATED CIRCUITS
DATA SHEET
6 W hi-fi audio power amplifier
Product specification
Supersedes data of July 1994
File under Integrated Circuits, IC01
1995 May 08
Philips Semiconductors
´
TDA2615
2
Philips Semiconductors
Product specification
2
´
6 W hi-fi audio power amplifier
TDA2615
FEATURES
GENERAL DESCRIPTION
·
Requires very few external components
The TDA2615 is a dual power amplifier in a 9-lead plastic
single-in-line (SIL9MPF) medium power package. It has
been especially designed for mains fed applications, such
as stereo radio and stereo TV.
·
No switch-on/switch-off clicks
·
Input mute during switch-on and switch-off
·
Low offset voltage between output and ground
·
Excellent gain balance of both amplifiers
·
Hi-fi in accordance with “IEC268” and “DIN45500”
·
Short-circuit proof and thermal protected
·
Mute possibility.
QUICK REFERENCE DATA
Stereo application.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
±
V
P
supply voltage range
7.5
-
21
V
P
O
output power
V
S
=
±
12 V; THD = 0.5%
-
6
-
W
G
v
internal voltage gain
-
30
-
dB
ï
G
v
ï
channel unbalance
-
0.2
-
dB
a
channel separation
-
70
-
dB
SVRR
supply voltage ripple rejection
-
60
-
dB
V
no
noise output voltage
-
70
-
m
V
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA2615
SIL9MPF
plastic single in-line medium power package with fin; 9 leads
SOT110-1
1995 May 08
2
Philips Semiconductors
Product specification
2
´
6 W hi-fi audio power amplifier
TDA2615
BLOCK DIAGRAM
+ V
P
V
A
7
V
ref1
TDA2615
20 k
½
680
½
V
B
CM
INV1
1
20 k
½
4
OUT1
MUTE
2
4 k
½
– V
P
5 k
½
+ V
P
V
ref3
10 k
½
+ V
P
+ V
ref2
THERMAL
PROTECTION
V
ref1
3
1/2 V / GND
P
voltage
comparator
10 k
½
V
A B
V
– V
ref2
– V
P
– V
P
20 k
½
6
OUT2
INV2
9
CM
8
680
½
V
B
INV1, 2
20 k
½
V
ref1
V
A
5
MLA711
– V
P
Fig.1 Block diagram.
1995 May 08
3
Philips Semiconductors
Product specification
2
´
6 W hi-fi audio power amplifier
TDA2615
PINNING
FUNCTIONAL DESCRIPTION
SYMBOL PIN
DESCRIPTION
The TDA2615 is a hi-fi stereo amplifier designed for mains
fed applications, such as stereo radio and stereo TV. The
circuit is optimally designed for symmetrical power
supplies, but is also well-suited to asymmetrical power
supply systems.
-
INV1
1 non-inverting input 1
MUTE
2 mute input
1
¤
2
V
P
/GND
3
1
¤
2
supply voltage or ground
OUT1
4 output 1
An output power of 2
´
6 W (THD = 0.5%) can be
delivered into an 8
-
V
P
5 supply voltage (negative)
W
load with a symmetrical power supply
12 V. The gain is internally fixed at 30 dB, thus offering
a low gain spread and a very good gain balance between
the two amplifiers (0.2 dB).
±
OUT2
6 output 2
+V
P
7 supply voltage (positive)
INV1, 2
8 inverting input 1 and 2
A special feature is the input mute circuit. This circuit
disconnects the non-inverting inputs when the supply
voltage drops below
-
INV2
9 non-inverting input 2
6 V, while the amplifier still retains its
DC operating adjustment. The circuit features suppression
of unwanted signals at the inputs, during switch-on and
switch-off.
The mute circuit can also be activated via pin 2. When a
current of 300
±
INV1
1
m
A is present at pin 2, the circuit is in the
mute condition.
MUTE
2
The device is provided with two thermal protection circuits.
One circuit measures the average temperature of the
crystal and the other measures the momentary
temperature of the power transistors. These control
circuits attack at temperatures in excess of +150
°
C, so a
crystal operating temperature of max. +150
1/2 V
P
/ GND
3
OUT1
4
V
P
5
TDA2615
OUT2
6
°
C can be
used without extra distortion.
+ V
P
7
With the derating value of 6 K/W, the heatsink can be
calculated as follows:
INV1, 2
8
INV2
9
at R
L
=8
and V
S
=
±
12 V, the measured maximum
MLA708
dissipation is 7.8 W.
With a maximum ambient temperature of +60
°
C, the
thermal resistance of the heatsink is:
R
th
=
---------------------- 6
–
7.8
–
=
5.5 K/W
Fig.2 Pin configuration.
The metal tab has the same potential as pin 5.
1995 May 08
4
of
W
150 60
Philips Semiconductors
Product specification
2
´
6 W hi-fi audio power amplifier
TDA2615
LIMITING VALUES
In accordance with the Absolute maximum System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX. UNIT
±
V
P
supply voltage
-
21
V
I
OSM
non-repetitive peak output current
-
4
A
P
tot
total power dissipation
see Fig.3
-
15
W
T
stg
storage temperature range
-
55
+150
°
C
T
xtal
crystal temperature
-
+150
°
C
T
amb
ambient operating temperature range
-
25
+150
°
C
t
sc
short-circuit time
short-circuit to ground; note 1
-
1
h
Note
1. For asymmetrical power supplies (with the load short-circuited), the maximum unloaded supply voltage is limited to
V
P
= 28 V and with an internal supply resistance of R
S
³
4
W
, the maximum unloaded supply voltage is limited to 32 V
(with the load short-circuited)
. For symmetrical power supplies the circuit is short-circuit-proof up to V
P
=21V.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-c
thermal resistance from junction to case
6
K/W
16
MCD368 - 2
P
(W)
tot
12
infinite heatsink
8
R = 5.5 K/W
4
– 25
0
0
50
100
T ( C)
150
o
amb
Fig.3 Power derating curve.
1995 May 08
5
th-hs
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