TDA2003音频功率放大电路
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TDA2003
10W CAR RADIO AUDIO AMPLIFIER
DESCRIPTION
The TDA 2003has improved performance with the same pin configuration as the TDA 2002.
The additional features of TDA 2002,very low number of external components,ease of assembly,space and cost saving,are maintained.
The device provides a high output current capability (up to 3.5A)very low harmonic and cross-over distortion.
Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground,thermal over-range,load dump voltage surge up to 40V and fortuitous open ground.
April 1995Symbol Parameter
Value Unit V s Peak supply voltage (50ms)40V V s DC supply voltage 28V V s Operating supply voltage 18V I o Output peak current (repetitive) 3.5A I o Output peak current (non repetitive) 4.5A P tot Power dissipation at T case =90°C 20W T stg ,T j
Storage and junction temperature
-40to 150
°C
ABSOLUTE MAXIMUM RATINGS
TEST CIRCUIT
PENTAWATT
ORDERING NUMBERS :TDA 2003H
TDA 2003V
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TDA2003
PIN CONNECTION(top view)
SCHEMATIC DIAGRAM
THERMAL DATA
Symbol Parameter Value Unit R th-j-case Thermal resistance junction-case max3°C/W
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Symbol Parameter Test conditions Min.Typ.Max.Unit DC CHARACTERISTICS(Refer to DC test circuit)
V s Supply voltage818V V o Quiescent output voltage(pin4) 6.1 6.97.7V
I d Quiescent drain current(pin5)4450mA AC CHARACTERISTICS(Refer to AC test circuit,Gv=40dB)
P o Output power d=10%
f=1kHz R L=4Ω
R L=2Ω
R L=3.2Ω
R L=1.6Ω5.5
9
6
10
7.5
12
W
W
W
W
V i(rms)Input saturation voltage300mV
V i Input sensitivity f=1kHz
P o=0.5W
P o=6W
P o=0.5W
P o10W R L=4Ω
R L=4Ω
R L=2Ω
R L=2Ω
14
55
10
50
mV
mV
mV
mV
ELECTRICAL CHARACTERISTICS(V s=14.4V,T amb=25°C unless otherwise specified)
DC TEST CIRCUIT AC TEST CIRCUIT
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TDA2003
Figure1.Quiescent output voltage vs.supply voltage Figure 2.Quiescent drain
current vs.supply voltage
Figure3.Output power vs.
supply voltage
Symbol Parameter Test conditions Min.Typ.Max.Unit
B Frequency response(-3dB)P o=1W
R L=4Ω
40to15,000Hz
d Distortion f=1kHz
P o=0.05to4.5W R L=4ΩP o=0.05to7.5W R L=2Ω0.15
0.15
%
%
R i Input resistance(pin1)f=1kHz70150kΩ
G v Voltage gain(open loop)f=1kHz
f=10kHz 80
60
dB
dB
G v Voltage gain(closed loop)f=1kHz
R L=4Ω
39.34040.3dB
e N Input noise voltage(0)15µV i N Input noise current(0)60200pA
ηEfficiency f=1Hz
P o=6W
P o=10W R L=4Ω
R L=2Ω
69
65
%
%
SVR Supply voltage rejection f=100Hz
V ripple=0.5V
R g=10kΩR L=4Ω3036dB ELECTRICAL CHARACTERISTICS(continued)
(0)Filter with noise bandwidth:22Hz to22kHz
TDA2003
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