UTC UNISONIC TECHNOLOGIES TDA 2003 Datasheet

UNISONIC TECHNOLOGIES CO., LTD

TDA2003

LINEAR INTEGRATED CIRCUIT

10W CAR RADIO AUDIO AMPLIFIER

 DESCRIPTION

The UTC TDA2003 is a monolithic audio power amplifier

integrated circuit.

 FEATURES

*Very low external component required. *High current output ( up to 3 A). *Low harmonic and crossover distortion. *Built-in Over temperature protection. *Short circuit protection between all pins.

 ORDERING INFORMATION

Ordering Number

Normal Lead Free Plating TDA2003-TA5-T TDA2003L-TA5-T TO-220-5 Tube TDA2003-TB5-T TDA2003L-TB5-T TO-220B Tube

Package Packing

*Pb-free plating product number: TDA2003L

 PIN DESCRIPTION

PIN NO.

1 Non inverting input 2 Inverting input 3 Ground 4 Output 5 Supply Voltage

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PIN NAME

TDA2003 LINEAR INTEGRATED CIRCUIT

 BLOCK DIAGRAM

5

4

3

12

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TDA2003 LINEAR INTEGRATED CIRCUIT

 ABSOLUTE MAXIMUM RATINGS (Ta=25℃)

PARAMETER SYMBOL RATINGS UNIT Peak Supply Voltage Vss 40 V DC Supply Voltage Vss 28 V Operating Supply Voltage Vss 18 V

Output Peak Current

Power Dissipation at Tc = 90°C PD 20 W Storage and Junction Temperature T

Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

 ELECTRICAL CHARACTERISTICS

(Refer to the test circuit, Vs=±16V, Ta=25°C, unless otherwise specified.)

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

DC CHARACTERISTICS

Supply Voltage Vss 8 18 V Quiescent Output Voltage V Quiescent Drain Current ID 44 50 mA

AC CHARACTER ISTIC S

Output Power P

Input Sensitivity V

Input Saturation Voltage V Frequency Response(-3dB) F P

Total Harmonic Distortion THD f=1kHz

Input Resistance(Pin 1) RI open loop, f=1kHz 70 150 kΩ Input Noise Current iN 60 200 pA Input Noise Voltage eN 1 5 μV

Open Loop Voltage Gain Gvo

Closed Loop Voltage Gain Gvc f=1kHz, RL=4Ω 39.3 40 40.3 dB

Efficiency, f=1kHz η

Supply Voltage Rejection SVR

Repetitive 3.5 A Non Repetitive

6.1 6.9 7.7 V

OUT

I

O(PEAK)

-40 ~ +150 °C

STG

4.5 A

RL=8Ω 5.5 6

OUT

I(S)

I(RMS)

f=1kHz

300 mV

=1W, RL=4Ω 40 15000 Hz

OUT

THD=10%,

RL=2Ω 9 10 RL=3.2Ω 7.5 R

=1.6Ω 12

L

P

=0.5W, RL=4Ω 14

OUT

P

=6W, RL=4Ω 55

OUT

P

=0.5W, RL=2Ω 10

OUT

=10W, RL=2Ω 50

P

OUT

P

=0.05 ~ 4.5W, RL=4Ω 0.15

OUT

=0.05 ~ 7.5W, RL=2Ω 0.15

P

OUT

W

mV

%

f=1kHz 80 dB f=10kHz 60 dB

P

=6W, RL=4Ω 69

OUT

P

=10W, RL=2Ω 65

OUT

f=100Hz, V R

=10kΩ, RL=4Ω

G

RUPPLE

=0.5V

30 36 dB

%

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TEST CIRCUIT

100nF

DC Test Circuit

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TEST CIRCUIT(Cont.)

AC Test Circuit

100nF

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TYPICAL APPLICATION CIRCUIT

100nF

20W Bridge Configuration Application

The Values of the capacitors C3 and C4 are different to optimize the SVR (Typ. 40dB)

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TYPICAL APPLICATION CIRCUIT

Low Cost Bridge Configuration Application Circuit(P

OUT

=18W)

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TDA2003 LINEAR INTEGRATED CIRCUIT

 BUILT-IN PROTECTION SYSTEMS

LOAD DUMP VOLTAGE SURGE

The UTC TDA2003 has a circuit which enables it to withstand a voltage pulse train, on pin 5.

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 will be head within the limits.

A suggested LC network. With this network, a train of pulses with amplitude up to 120V and width of 2ms can be applied at point A. This type of protection is ON when the supply voltage(pulsed or DC) exceeds 18V. For this reason the maximum operating supply voltage is 18V.

SHORT CIRCUIT (AC and DC Conditions)

The UTC TDA2003 can withstand a permanent short-circuit on the output for a supply voltage up to 16V.

POLARITY INVERSION

High current (up to 5A) can be handled by the device with no damage for a longer period than the blow-out time of a quick 1A fuse(normally connected in series with the supply). The feature is added to avoid destruction if, during fitting to the car, a mistake on connection of the supply is made.

OPEN GROUND

When the radio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be

damaged. On the UTC TDA2003 protection diodes are included to avoid any damage.

INDUCTIVE LOAD

A protection diode is provide between pin 4 and pin 5(see the internal schematic diagram) to allow use of the UTC TDA2003 with inductive loads. In particular, the UTC TDA2003 can drive a coupling transformer for audio modulation.

DC VOLTAGE

The maximum operating DC voltage on the UTC TDA2003 is 18V.

However the device can withstand a DC voltage up to 28V with no damage. This could occur during winter if two batteries were series connected to crank the engine.

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TDA2003 LINEAR INTEGRATED CIRCUIT

 BUILT-IN PROTECTION SYSTEMS(Cont.)

THERMAL SHUT-DOWN

The presence of a thermal limiting circuit offers the following advantages: (1) An overload on the output (even if it is permanent),or an excessive ambient temperature can be easily withstood. (2) The heat-sink can have a smaller factor compared with that of a conventional circuit. There is no device damage in case of excessive junction temperature: all that happens is that Po ( and there P

 COMPONENTS USAGE SUGGESTION

The recommended values of the components are those shown on typical application circuit Different values can

be used. The following table can help the designer.

COMPONENT RECOMMENDED

VALUE R1 (Gv-1)*R2 gain setting. increase of Gain R2 2.2π gain and SVR setting. Decrease of SVR

R3 1Ω Frequency stability

Rx ≈20R2 Upper frequency cutoff

C1 2.2μF Input DC decoupling

C2 470μF Ripple rejection Decrease of SVR C3 0.1μF Supply voltage bypass Danger of oscillation

C4 100μF Supply voltage bypass

C5 0.1μF Frequency stability

Cx ≈1/(2π*B*R1) Upper frequency cutoff smaller bandwidth Larger bandwidth

PURPOSE LARGE THAN

RECOMMENDED VALUE

Danger of oscillation at high

frequencies with inductive

loads.

Poor high frequencies

attenuation

) and Id are reduced.

D

LARGE THAN

RECOMMENDED VALUE

Danger of oscillation

Noise at switch-on

switch-off

Higher low frequency

cutoff

Danger of oscillation at

high frequencies with

inductive loads.

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TYPICAL CHARACTORISTICS

Quiescent output voltage vs.Supply

voltage

Quiescent drain current vs.Supply

voltage

8

6

4

2

0

810 1214 16

Vs(V)

Output power vs.Supply voltage

Gv=40dB f=1kHz THD=10%

20

15

10

5

R=1.6

R=3.2

R=2

R=4

80

60

40

20

0

810 1214 16

Vs(V)

Output power vs.load resistance

Gv=40dB f=1kHz

16

12

8

4

Vs=16V

Vs=14.4V

Vs=12V

Vs=8V

THD=10%

0

05 1015 20

Vs(V)

0

02 4 6 8

RL ( )

Gain vs. Input sensitivity Gain vs. Input sensitivity

58

54

52

48

44

40

36

32

28

24

20

10 100 1000

Gv=40dB f=1kHz R

L=4

VI (RMS) VI (RMS)

58

54

52

48

44

40

36

32

28

24

20

10

100 1000

Gv=40dB f=1kHz RL=2

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TYPICAL CHARACTORISTICS (Cont.)

Distortion vs. output power

100

THD (%)

10

1

0.1

0.01

Gv=40dB f=1kHz Vs=14.4V

R=3.2

R=4

R=2

R=1.6

100.1 1 100

POUT ( )

Supply voltage rejection vs. voltage gain

fRIPPLE=100Hz Vs=14,4V RL=2.2 RG=10k

-10

-20

Distortion vs.frequency

Gv=40dB Vs=14.4V RL=2 /4

0.8

0.6

THD (%)

0.4

0.2

POUT=2.5W

0

1

10

2

10

3

10

Frequency (Hz)

Supply voltage rejection vs.frequency

Vs=14.4V V

RIPPLE=0.5V

Gv=40dB

0

f=1kHz R

G=10k

-20

PoUT=50mW

4

10

SVR (dB)

-30

-40

-50 30 35 40 45 50 55

Gv(dB)

Power dissipation and efficiency vs.

output power (R

Vs=14.4V Gv=40dB f=1kHz

8

6

PD (W)

4

2

0

02468

POUT (W)

l=4 )

PD

SVR (dB)

-40

-60

-80

10 10

2

R2=22

R2=1

3

10

4

10

5

10

frequency(Hz)

Power dissipation and efficiency vs.

output power(R

Vs=14.4V Gv=40dB f=1kHz

80

60

(%)

40

20

0

8

6

PD (W)

4

2

0

2468

l=2 )

POUT (W)

80

60

(%)

40

20

0

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TDA2003 LINEAR INTEGRATED CIRCUIT

 TYPICAL CHARACTORISTICS (Cont.)

Maximum Power dissipation and

supply voltage(sine wave operation)

Maximum allowable dissipation

and ambient temperature

20

15

PD (W)

10

5

0

0 5 10 15 20

Vs(V)

RL=1.6

RL=2

RL=3.2

RL=4

Typical values of capacitor(Cx) for

different values of frequency response

100

B=10kHz

B=15kHz

10

Cx (nF)

B=20kHz

infinite heatsink

20

15

D (W)

P

10

10℃/W

5

30℃/W

0

050100150200

Ta (℃)

R2=2.2

1

36 40 44 48

Gv (dB)

UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.

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