Datasheet UTCTDA2003 Datasheet (UTC)

UTC 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.

1

TO-220B

PIN CONFIGURATIONS

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

BLOCK DIAGRAM

5

4

3

1 2

UTC UNISONIC TECHNOLOGIES CO., LTD. 1

QW-R107-002,A

UTC TDA2003 LINEAR INTEGRATED CIRCUIT

ABSOLUTE MAXIMUM RATINGS(Ta=25°C)

PARAMETER SYMBOL VALUE UNIT

Peak Supply Voltage Vs 40 V DC Supply Voltage Vs 28 V Operating Supply Voltage Vs 18 V Output Peak Current (repetitive) Io 3.5 A Output Peak Current ( non repetitive) Io 4.5 A Power Dissipation at Tcase = 90°C Ptot 20 W Storage Temperature Tstg -40~+150 °C Junction Temperature Tj -40~+150 °C

ELECTRICAL CHARACTERISTICS(Refer to the test circuit,Vs=+-16V,Ta=25°C)

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

DC CHARACTERISTICS

Supply Voltage Vs 8 18 V Quiescent Output Voltage Quiescent Drain Current

AC CHARACTERISTICS

Output Power Po RL=2Ω 9 10 W

Input Sensitivity Vi Po=6W,RL=4Ω 55 mV

Input Saturation Voltage Frequency Response(-3dB)

Distortion D Po=0.05 to 4.5W ,RL=4Ω 0.15 %

Input Resistance(Pin 1) Input Noise Current e Input Noise Voltage I Open Loop Gvo f=1kHz 80 dB Voltage Gain f=10kHz 60 dB Closed Loop Gvc f=1kHz Voltage Gain RL=4Ω 39.3 40 40.3 dB

Vo 6.1 6.9 7.7 V

Id 44 50 mA

d=10%,f=1kHz

RL=8Ω 5.5 6

RL=3.2Ω 7.5 RL=1.6Ω 12 f=1kHz

Po=0.5W,RL=4Ω 14 mV

Po=0.5W,RL=2Ω 10 mV

Po=10W,RL=2Ω 50 mV

Vi(rms) 300 mV

B Po=1W,RL=4Ω 40 15000 Hz

f=1kHz

Po=0.05 to 7.5W ,RL=2Ω 0.15

Ri open loop,f=1kHz 70 150 kΩ

N

60 200 pA

1 5 µV

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QW-R107-002,A

UTC TDA2003 LINEAR INTEGRATED CIRCUIT

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

f=1kHz

Efficiency

Supply Voltage Rejection

TEST CIRCUIT

¦Ç

Po=6W,RL=4Ω 69 %

Po=10W,RL=2Ω 65 %

SVR f=100Hz,Vripple=0.5V

Rg=10kΩ,RL=4Ω 30 36 dB

+Vs

F

µ

Vi

C1

1 µF

1

100

UTC

TDA2003

2

Rx

39

Ω

Cx

39nF

Rx=20*R2 Cx=1/(2 πB*R1)

C2

470 µF

DC Test Circuit

5

3

C3

100nF

4

C4

1000 µF

R1

220

Ω

R3

1

Ω

R2

2.2

Ω

100nF

AC Test Circuit

RL

+Vs

mA

Vi

1

5

UTC

TDA2003

2

3

470 µF

1000 µF

4

V

100nF

220

2.2

Vi

C1

1 µF

R1

Ω

RL

R2

Ω

39

39nF

1

2

Rx

Ω

Cx

F

µ

100

UTC

TDA2003

C2

470 µF

C3

100nF

5

3

C4

1000µF

4

R1

220

Ω

2.2

R3 1

Ω

R2

Ω

RL

100nF

Rx=20*R2 Cx=1/(2πB*R1)

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UTC TDA2003 LINEAR INTEGRATED CIRCUIT

TYPICAL PERFORMANCE CHARACTERISTICS

Fig.1 Quiescent output voltage

vs.Supply voltage

Vo(V)

8

6

4

2

0

8 10 12 14 16

Fig.4 output power vs.load

resistance

Po

(W)

16

Vs=16V

Vs=14.4V

12

Vs=12V

8

Vs=8V

4

0

0 2 4 6 8

Fig.7 Distortion vs.

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

output power

R=4Ω

d(%)

100

10

1

0.1

0.01

R=3.2Ω

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

Vs(V)

RL(Ω)

R=2

Ω

R=1.6Ω

100.1 1 100

Po(Ω)

Fig.2 Quiescent drain current

vs.Supply voltage

Id(mA)

80

60

40

20

0

8 10 12 14 16

Fig.5 Gain vs. Input sensitivity Fig.6 Gain vs. Input sensitivity

58

54 52 48 44

40 36 32

28 24

20

10 100 1000

d(%)

0.8

0.6

0.4

0.2

0

1

10

Gv=40dB f=1kHz RL=4Ω

Fig.8 Distortion vs.

frequency

Gv=40dB Vs=14.4V RL=2Ω/4Ω

Po=2.5W

2

10

Frequency (Hz)

10

Fig.3 Output power vs.Supply

Po

(W)

20

15

10

5

0

Vs(V)

Vi(rms) Vi(rms)

Po=50mW

3

4

10

0 5 10 15 20

58

54 52 48 44

40 36 32

28 24

20

10

SVR (dB)

-10

-20

-30

-40

-50 30 35 40 45 50 55

voltage

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

Gv=40dB f=1kHz RL=2Ω

100 1000

Fig.9 Supply voltage rejection

vs. voltage gain

fripple=100Hz Vs=14,4V RL=2.2Ω Rg=10kΩ

Gv(dB)

R=1.6Ω

R=2Ω

R=3.2Ω

R=4

Vs(V)

Ω

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UTC TDA2003 LINEAR INTEGRATED CIRCUIT

Fig. 10 Supply voltage

rejection vs.frequency

SVR (dB)

0

-20

-40

-60

-80 10 10

Ptot

(W)

20

15

10

5

0

Vs=14.4V Vripple=0.5V Gv=40dB f=1kHz Rg=10k

2

Fig. 13 Maximum Power

dissipation and supply

voltage(sine wave operation)

0 5 10 15 20

3

10

Ω

R2=22

Ω

R2=1

10410

frequency(Hz)

RL=1.6

RL=2

RL=3.2

RL=4

Fig. 11 Power dissipation

and efficiency vs. output

Ptot (W)

5

Ptot (W)

Ω

Vs(V)

power(Rl=4Ω)

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

Ptot

temperature

η

8

6

4

2

0

0 2 4 6 8

Fig. 14 Maximum allowable

dissipation and ambient

infinite heatsink

20

15

10

10¢XC/W

5

30¢XC/W

0

0 50 100 150 200

Po(W)

Tamb(¢XC)

η

(%)

80

60

40

20

0

Fig. 12 Power dissipation

and efficiency vs. output

Ptot (W)

Vs=14.4V

8

Gv=40dB f=1kHz

6

4

2

0

2 4 6 8

Fig. 15 Typical values of

capacitor(Cx) for different

values of frequency

100

Cx

(nF)

10

R2=2.2

1

36 40 44 48

power(Rl=2Ω)

response

B=15kHz

B=20kHz

Ω

B=10kHz

Po(W)

Gv(dB)

¦Ç

(%)

80

60

40

20

0

APPLICATION CIRCUIT

+Vs

F

µ

100

Vi

C1

1 µF

1

5

UTC

TDA2003

2

Rx

39

Ω

470 µF

3

C2

Cx

39nF

Rx=20*R2 Cx=1/(2πB*R1)

Fig 16 Typical Application Circuit

C3

100nF

4

220

2.2

R1

R2

Ω

C4

1000 µF

R3 1

Ω

100nF

RL

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UTC TDA2003 LINEAR INTEGRATED CIRCUIT

Vs=14.4V

0.1µF

Ω

2.2 µF

1

2

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

5

UTC

TDA2003

4

3

0.1 µF

C3

15 µF

Fig.18 20W Bridge Configuration Application

1

RL=4Ω

200Ω 430Ω

Ω

16

Ω

16

4

C4

10 µF

5

UTC

TDA2003

3

1

2

2.2 µF

Vs=14.4V

0.1 µF

1

2

Fig.20 Low Cost Bridge Configuration Application Circuit(Po=18W)

5

UTC

TDA2003

3

C3

15 µF

Ω

RL=4

4

F

µ

0.1

1nF

0.1 µF

620Ω

5

4

TDA2003

3

0.1 µF

1

UTC

2

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UTC TDA2003 LINEAR INTEGRATED CIRCUIT

BUILT-IN PROTECTION SYSTEMS LOAD DUMP VOLTAGE SURGE

The UTC TDA2003 has a circuit which enables it to withstand a volt. CHARACT age pulse train, on pin 5, of the type shown in Fig. 23. 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 shown in Fig.22. A suggested LC network is shown in Fig.23.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.

Vs

t1=50ms

(V)

40

A B

2mH

From

Supply

Voltage

3000 µF

16V

To

Pin 5

14.4

t

t2=1000ms

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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UTC TDA2003 LINEAR INTEGRATED CIRCUIT

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 Ptot) and Id are reduced.

APPLICATION SUGGESTION

The recommended values of the components are those shown on application circuit of Fig.16. 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

R3 1Ω Frequency stability Danger of oscillation

Rx ≈20R2 Upper frequency

C1 2.2µF Input DC decoupling Noise at switch-on

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

C4 100µF Supply voltage

C5 0.1µF Frequency stability Danger of oscillation

Cx ≈1/(2π*B*R1) Upper frequency

PURPOSE LARGE THAN

RECOMMENDED

VALUE

Decrease of SVR

setting.

at high frequencies

with inductive loads.

cutoff

bypass

cutoff

Poor high frequencies

attenuation

smaller bandwidth Larger bandwidth

LARGE THAN

RECOMMENDED

Dange of oscillation

Higher low frequency

at high frequencies

with inductive loads.

VALUE

switch-off

cutoff

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Datasheet UTCTDA2003 Datasheet (UTC)

Specifications and Main Features

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