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ST Microelectronics
ST Microelectronics

TDA2005 Datasheet

20W BRIDGE AMPLIFIER FOR CAR RADIO


TDA2005 Datasheet Preview


® TDA2005
20W BRIDGE AMPLIFIER FOR CAR RADIO
High output power : PO = 10 + 10 W@RL = 2,
d = 10% ; PO = 20W@RL = 4, d = 1 %.
High reliability of the chip and package with addi-
tional complete safety during operation thanks to
protection against :
. OUTPUT DC AND AC SHORT CIRCUIT TO
GROUND
. OVERRATING CHIP TEMPERATURE
. LOAD DUMP VOLTAGE SURGE
. FORTUITOUS OPEN GROUND
. VERY INDUCTIVE LOADS
Flexibility in use : bridge or stereo booster ampli-
fiers with or without boostrap and with programma-
ble gain and bandwidth.
Space and cost saving : very low number of
external components, very simple mounting sys-
tem with no electrical isolation between the pack-
age and the heatsink (one screw only).
In addition, the circuit offers loudspeaker protec-
tion during short circuit for one wire to ground.
MULTIWATT11
ORDERING NUMBERS : TDA2005M (Bridge Appl.)
TDA2005S (Stereo Appl.)
DESCRIPTION
The TDA2005 is class B dual audio power amplifier
in MULTIWATT® package specifically designed for
car radio application : power booster amplifiers
are easily designed using this device that provides
a high current capability (up to 3.5 A) and that can
drive very low impedance loads (down to 1.6in
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Vs
Vs
Vs
Io (*)
Io (*)
Operating Supply Voltage
DC Supply Voltage
Peak Supply Voltage (for 50 ms)
Output Peak Current (non repetitive t = 0.1 ms)
Output Peak Current (repetitive f 10 Hz)
Ptot Power Dissipation at Tcase = 60 °C
Tstg, Tj Storage and Junction Temperature
(*) The max. output current is internally limited.
Value
18
28
40
4.5
3.5
30
– 40 to 150
Unit
V
V
V
A
A
W
°C
PIN CONNECTION
October 1998
TAB CONNECTED TO PIN 6
11
10
9
8
7
6
5
4
3
2
1
BOOTSTRAP(1)
OUTPUT(1)
+VS
OUTPUT(2)
BOOTSTRAP(2)
GND
INPUT+(2)
INPUT-(2)
SVRR
INPUT-(1)
INPUT+(1)
D95AU318
1/20
Page 1

TDA2005
SCHEMATIC DIAGRAM
THERMAL DATA
Symbol
Rth j-case
Parameter
Thermal Resistance Junction-case
2/20
Max.
Value
3
Unit
°C/W
Page 2

BRIDGE AMPLIFIER APPLICATION (TDA2005M)
Figure 1 : Test and Application Circuit (Bridge amplifier)
TDA2005
Figure 2 : P.C. Board and Components Layout of Figure 1 (1:1 scale)
3/20
Page 3

TDA2005
ELECTRICAL CHARACTERISTICS (refer to the Bridge applicationcircuit, Tamb = 25oC, GV = 50dB,
Rth (heatsink) = 4oC/W, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
Vs Supply Voltage
Vos Output Offset Voltage (1)
(between pin 8 and pin 10)
Id Total Quiescent Drain Current
Po Output Power
d Distortion
Vi Input Sensitivity
Ri
fL
fH
Gv
eN
SVR
Input Resistance
Low Frequency Roll Off (– 3dB)
High Frequency Roll Off (– 3dB)
Closed Loop Voltage Gain
Total Input Noise Voltage
Supply Voltage Rejection
η Efficiency
Tj Thermal Shut-down Junction
Temperature
VOSH Output Voltage with one Side of
Notes : 1. thFeoSr TpDeAa2k0e0r5sMhoonrtley d to ground
2. Bandwith Filter : 22Hz to 22kHz.
Vs = 14.4V
Vs = 13.2V
Vs = 14.4V
Vs = 13.2V
RL = 4
RL = 3.2
d = 10%
Vs = 14.4V
Vs = 13.2V
f = 1 Hz
RL = 4
RL = 3.2
RL = 3.2
f = 1kHz
Vs = 14.4V
RL = 4
Po = 50mW to 15W
Vs = 13.2V
RL = 3.2
Po = 50mW to 13W
f = 1kHz
Po = 2W
Po = 2W
RL = 4
RL = 3.2
f = 1kHz
RL = 3.2
RL = 3.2
f = 1kHz
Rg = 10k(2)
Rg = 10k, C4 = 10µF
fripple = 100Hz, Vripple = 0.5V
Vs = 14.4V, f = 1 kHz
Po = 20W
RL = 4
Po = 22W
RL = 3.2
Vs = 13.2V, f = 1 kHz
Po = 19W
RL = 3.2
Vs = 14.4V, RL = 4
f = 1kHz, Ptot = 13W
Vs = 14.4V
Vs = 13.2V
RL = 4
RL = 3.2
8 18 V
150 mV
150 mV
75 150 mA
70 160 mA
18 20
20 22
17 19
W
1%
1%
9 mV
8 mV
70 k
40 Hz
20 kHz
50 dB
3 10 µV
45 55
dB
60 %
60 %
58 %
145 °C
2V
4/20
Page 4
Part Number TDA2005
Manufactur ST Microelectronics
Description 20W BRIDGE AMPLIFIER FOR CAR RADIO
Total Page 20 Pages
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