Td2003

3®

TDA2003
10W CAR RADIO AUDIO AMPLIFIER

DESCRIPTION The TDA 2003 has 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. Thedevice provides a high output currentcapability (up to 3.5A) very low harmonic and cross-over distortion. Completelysafe operation is guaranteed due to protectionagainst DC and AC short circuit between all pins and ground, thermal over-range,load dump voltage surge up to 40V and fortuitous open ground. ABSOLUTE MAXIMUM RATINGS
Symbol VS VS VS IO IO Ptot Tstg, Tj DC supply voltage Operating supply voltage Output peak current (repetitive) Output peak current (non repetitive) Power dissipation at Tcase = 90°CStorage and junction temeperature Parameter Peak supply voltage (50ms)

PENTAWATT

ORDERING NUMBERS : TDA 2003H TDA 2003V

Value 40 28 18 3.5 4.5 20 -40 to 150

Unit V V V A A W °C

TEST CIRCUIT

October 1998

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PIN CONNECTION (top view)

SCHEMATIC DIAGRAM

THERMAL DATA
Symbol Rth-j-case Parameter Thermal resistance junction-case max Value 3 Unit °C/W

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DC TEST CIRCUIT AC TEST CIRCUIT

ELECTRICAL CHARACTERISTICS ( Vs = 14.4V, Tamb = 25 °C unless otherwise specified)
Symbol Parameter Test conditions Min. Typ. Max. Unit

DC CHARACTERISTICS (Refer to DC test circuit)
Vs Vo Id Supply voltage Quiescent output voltage (pin 4) Quiescent drain current (pin 5) 8 6.1 6.9 44 18 7.7 50 V V mA

AC CHARACTERISTICS (Refer to AC test circuit, Gv= 40 dB)
Po Output power d = 10% f = 1 kHz RL RL RL RL = 4Ω = 2Ω = 3.2Ω = 1.6Ω 5.5 9 6 10 7.5 12 W W W W mV 14 55 10 50 mV mV mV mV

Vi(rms) Vi

Input saturation voltage Input sensitivity f = 1 kHz Po = 0.5W Po = 6W Po = 0.5W Po 10W RL RL RL RL = 4Ω = 4Ω = 2Ω = 2Ω

300

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ELECTRICAL CHARACTERISTICS (continued)
Symbol B d Parameter Frequency response (-3 dB) DistortionTest conditions Po = 1W RL = 4Ω f = 1 kHz Po = 0.05 to4.5W RL = 4Ω Po = 0.05 to 7.5W RL = 2Ω f = 1 kHz f = 1 kHz f = 10 kHz f = 1 kHz RL = 4Ω (0) (0) f = 1 Hz Po = 6W Po = 10W f = 100 Hz Vripple = 0.5V Rg = 10 kΩ R L = 4Ω R L = 2Ω 39.3 70 Min. Typ. 40 to 15,000 Max. Unit Hz

0.15 0.15 150 80 60 40 1 60 69 65 40.3 5 200

% % kΩ dB dB dB µV pA % %

Ri Gv Gv eN iN η

Input resistance (pin 1)Voltage gain (open loop) Voltage gain (closed loop) Input noise voltage Input noise current Efficiency

SVR

Supply voltage rejection

R L = 4Ω

30

36

dB

(0) Filter with noise bandwidth: 22 Hz to 22 kHz

Figure 1. Quiescent output voltage vs. supply voltage

Figure 2. Quiescent drain current vs. supply voltage

Figure 3. Output power vs. supply voltage

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TDA2003Figure 4. Output power vs. load resistance RL Fi gure 5. Gain vs. inp ut sensivity Figure 6. Gain vs. input sensivity

F i gu re 7. Di stortion vs. output power

Fi g ure 8. Disto r tion vs. frequency

Figure 9. Supply voltage rejection vs. voltage gain

Figure 10. Supply voltage rejection vs. frequency

Figure 11. Power dissipation and efficiency vs. output power (RL = 4Ω)

Figure 12.Power dissipation and efficiencyvs. output power (RL = 2Ω)

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Figure 13. Maximum power dissipation vs. supply voltage (sine wave operation) Figure 14. Maximum allowable power dissipation vs. ambient temperature Figure 15. Typical values of capacitor (CX) for different values of frequency reponse (B)

APPLICATION INFORMATION Figure 16. Typical application circuit Figure 17. P.C.board and component layout for the circuit of fig. 16 (1 : 1 scale)

BUILT-IN PROTECTION SYSTEMS Load dump voltage surge The TDA 2003 has a circuit which enables it to withstand a voltage pulse train, on pin 5, of the type shown in fig. 19. If the supply voltage peaks to more than 40V, then an LC filter must be inserted between the supply and pin 5, in order to assure that the pulses at pin 5...