Philips TDA2615 User Manual
INTEGRATED CIRCUITS
DATA SH EET
TDA2615
2 × 6 W hi-fi audio power amplifier
Product specification
Supersedes data of July 1994
File under Integrated Circuits, IC01
Philips Semiconductors
1995 May 08
Philips Semiconductors Product specification
2 × 6 W hi-fi audio power amplifier TDA2615
FEATURES
• Requires very few external components
• No switch-on/switch-off clicks
• Input mute during switch-on and switch-off
GENERAL DESCRIPTION
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.
• Low offset voltage between output and ground
• Excellent gain balance of both amplifiers
• Hi-fi in accordance with
“IEC 268”
and
“DIN 45500”
• Short-circuit proof and thermal protected
• Mute possibility.
QUICK REFERENCE DATA
Stereo application.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
±V
P
P
O
G
v
channel unbalance − 0.2 − dB
G
v
supply voltage range 7.5 − 21 V
output power VS= ±12 V; THD = 0.5% − 6 − W
internal voltage gain − 30 − dB
α channel separation − 70 − dB
SVRR supply voltage ripple rejection − 60 − dB
V
no
noise output voltage − 70 −µV
ORDERING INFORMATION
TYPE
NUMBER
NAME DESCRIPTION VERSION
TDA2615 SIL9MPF
PACKAGE
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
INV1
MUTE
1/2 V / GND
P
V
A
V
ref1
680 Ω
V
1
20 kΩ
– V
10 kΩ
10 kΩ
P
4 kΩ
5 kΩ
+ V
– V
V
ref3
ref2
ref2
2
+ V
P
V
3
ref1
B
voltage
comparator
– V
– V
P
P
7
TDA2615
20 kΩ
CM
4
OUT1
+ V
P
THERMAL
PROTECTION
V
V
B
A
20 kΩ
INV2
INV1, 2
9
8
680 Ω
V
B
V
ref1
V
A
Fig.1 Block diagram.
1995 May 08 3
CM
– V
20 kΩ
5
P
MLA711
6
OUT2
Philips Semiconductors Product specification
2 × 6 W hi-fi audio power amplifier TDA2615
PINNING
SYMBOL PIN DESCRIPTION
−INV1 1 non-inverting input 1
MUTE 2 mute input
1
⁄2VP/GND 31⁄2 supply voltage or ground
OUT1 4 output 1
−V
P
5 supply voltage (negative)
OUT2 6 output 2
+V
P
7 supply voltage (positive)
INV1, 2 8 inverting input 1 and 2
−INV2 9 non-inverting input 2
INV1
1
MUTE
2
1/2 V
P
INV1, 2
/ GND
OUT1
V
OUT2
+ V
INV2
3
4
TDA2615
5
P
6
7
P
8
9
MLA708
FUNCTIONAL 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.
An output power of 2 × 6W (THD = 0.5%) can be
delivered into an 8 Ω load with a symmetrical power supply
of ±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).
A special feature is the input mute circuit. This circuit
disconnects the non-inverting inputs when the supply
voltage drops below±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 µA is present at pin 2, the circuit is in the
mute condition.
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 °C can be
used without extra distortion.
With the derating value of 6 K/W, the heatsink can be
calculated as follows:
=8Ω and VS= ±12 V, the measured maximum
at R
L
dissipation is 7.8 W.
Fig.2 Pin configuration.
1995 May 08 4
With a maximum ambient temperature of +60 °C, the
thermal resistance of the heatsink is:
150 60–
R
----------------------
th
7.8
6– 5.5 K/W==
The metal tab has the same potential as pin 5.
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