tda1514a.pdf

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INTEGRATED CIRCUITS
DATA SHEET
TDA1514A
50 W high performance hi-fi
amplifier
Product specification
File under Integrated Circuits, IC01
May 1992
11045841.003.png
Philips Semiconductors
Product specification
50 W high performance hi-fi amplifier
TDA1514A
GENERAL DESCRIPTION
The TDA1514A integrated circuit is a hi-fi power amplifier for use as a building block in radio, tv and other audio
applications. The high performance of the IC meets the requirements of digital sources (e.g. Compact Disc equipment).
The circuit is totally protected, the two output transistors both having thermal and SOAR protection (see Fig.3). The circuit
also has a mute function that can be arranged for a period after power-on with a delay time fixed by external components.
The device is intended for symmetrical power supplies but an asymmetrical supply may also be used.
Features
·
High output power
·
Low harmonic distortion
·
Low intermodulation distortion
·
Low offset voltage
·
Good ripple rejection
·
Mute/stand-by facilities
·
Thermal protection
·
Protected against electrostatic discharge
·
No switch-on or switch-off clicks
·
Very low thermal resistance
·
Safe Operating Area (SOAR) protection.
QUICK REFERENCE DATA
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply voltage range
(pin 6 to pin 4)
V P
±
10
-
±
30
V
Total quiescent current
V P =
±
27.5 V
I tot
-
56
-
mA
Output power
THD = - 60 dB;
V P =
±
27.5 V;
R L = 8
W
P o
-
40
-
W
23 V;
R L = 4 W
±
P o
-
48
-
W
Closed loop voltage gain
determined
externally
G c
-
30
-
dB
Input resistance
determined
externally
R i
-
20
-
k W
Signal plus noise-to-noise ratio
P o = 50 mW
(S
+
N)/N
-
83
-
dB
Supply voltage ripple
rejection
f = 100 Hz
SVRR
-
64
-
dB
PACKAGE OUTLINE
9-lead SIL, plastic power (SOT131R); SOT131-2; 1996 July 19.
May 1992
2
V P =
11045841.004.png 11045841.005.png
Philips Semiconductors
Product specification
50 W high performance hi-fi amplifier
TDA1514A
Fig.1 Block diagram.
May 1992
3
11045841.006.png
Philips Semiconductors
Product specification
50 W high performance hi-fi amplifier
TDA1514A
RATINGS
Limiting values in accordance with the Absolute Maximum Rating System (IEC 134)
PARAMETER
SYMBOL
MIN.
MAX.
UNIT
Supply voltage (pin 6 to pin 4)
V P
-
±
30
V
Bootstrap voltage (pin 7 to pin 4)
V bstr
-
70
V
Output current (repetitive peak)
I o
-
8
A
Operating ambient temperature range
T amb
see Fig.2
Storage temperature range
T stg
-
55
+
150
°
C
Power dissipation
see Fig.2
Thermal shut-down protection time
t pr
-
1
hour
Mute voltage (pin 3 to pin 4)
V m
-
7.25
V
THERMAL RESISTANCE
From junction to mounting base
R th j-mb
1 K/W
Fig.2 Power derating curve.
May 1992
4
11045841.001.png
Philips Semiconductors
Product specification
50 W high performance hi-fi amplifier
TDA1514A
The theoretical maximum power dissipation for P o = 40 W with a stabilized power supply is:
----------------- 19 W;
V
2
P
=
where V P =
±
27.5 V; R L =8
W
2
2
p
R L
Considering, for example, a maximum ambient temperature of 50
°
C and a maximum junction temperature of 150
°
C the
total thermal resistance is:
R th j-a
=
150 50
=
5.3 K/W
Since the thermal resistance of the SOT131A encapsulation is R th j-mb < 1 K/W, the thermal resistance required of the
heatsink is R th h-a < 4.3 K/W.
SAFE OPERATING AREA (SOAR) PROTECTION
Fig.3 SOAR protection curve.
May 1992
5
–
19
----------------------
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