SGS Thomson Microelectronics TDA7299 Datasheet

TDA7299

SOUND 2W MONO AMPLIFIER

■

CAN DELIVER 2W THD 10% 12V/8

■

INTERNAL FIXED GAIN 20dB

■

NO BOUCHEROT CELL

■

THERMAL PROTECTION

■

AC SHORT CIRCUIT PROTECTION

■

SVR CAPACITOR FOR BETTER

Ω

RIPPLEREJECTION

■

LOW TURN-ON/OFF POP

■

STAND-BY MODE

DESCRIPTION

The device TDA7299 is a new technology Mono Au­dio Amplifier in SO package specially designed for
12V sound cards application.

Thanks to the fully complementary output configura-

BLOCK DIAGRAM

SO8 (4+4)

ORDERING NUMBER:

TDA7299

tion the device delivers a rail voltage swing without
need of boostrap capacitors.

IN

47µF

September 2002

0.1µF
IN

SVR

V

S

100µF

470µF

+

VS=12V

-

OUT

8Ω

GND

D94AU160A

1/7

TDA7299

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

I

O

T

op

T

T

stg

Operating Supply Voltage 18 V

S

Output Put Peak Current 1.5 A
Operating Temperature Range 0 to 70 °C
Junction Temperature 150 °C

j

Storage Temperature Range -40 to 125 °C

PIN CONNECTION

THERMAL DATA

(Top view)

V

S

OUT
SVR

IN GND

2
3
4

D94AU162

8
7
6
5

GND1
GND
GND

Symbol Parameter Value Unit

R

th j-amb

R

th j-case

ELECTRICAL CHARACTERISTICS

(T

amb

Symbol Parameter Test Condition Min. Typ. Max. Unit

R

Thermal Resistance Junction to ambient (on PCB) 80 °C/W
Thermal Resistance Junction to case 20 °C/W

= 25°C; VS = 12V; RL = 8Ω; f = 1KHz; unless otherwise specified.)

V

Supply Voltage Range 4.5 18 V

S

I

Quiescent Current 20 30 mA

S

I

Stand-By Current Pin 2 shorted to GND 0.3 mA

sb

V

Quiescent Output Voltage 6 V

O

Voltage Gain 20 dB

A

V

Input Impedance 50 100 KΩ

IN

P

Output Power THD = 10% 1.8 2 W

O

= 4Ω, VS = 8.5V, THD = 10% 2 W

R

L

2/7

TDA7299

ELECTRICAL CHARACTERISTICS

(T

= 25°C; VS = 12V; RL = 8Ω; f = 1KHz; unless otherwise specified.)

amb

(continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

P

ot

Transient Output Power
THD Distortion P
SVR Supply Voltage Rejection V

Input Noise Voltage Rg = 10KΩ; BW = 20Hz to 20KHz 1.5 5 µV

E

I

V

*) Limited by the RTH of the package

Stand-By Enable Voltage 1 V

sb

*)

Vi = 400mVp, THD < 2%, RL = 4Ω 2W

= 1W 1 %

O

= 150mVrms;

ripple

F

= 1KHz

ripple

50 dB

Figure 1. Application Circuit

V

=12V

S

STAND-BY

V

S

0.1µF

IN

IN

SVR

47µF

GND

100µF

470µF

OUT

8Ω

V

S

470µF

OUT

8Ω

D94AU161A

STAND-BY

0.1µF

IN

IN

SVR

47µF

GND

APPLICATION HINTS:

For 12V supply and 8Ω speaker application, its maximum power dissipation is about 1.8W.
Assumming that max ambient temperatur e i s 70° C. re quired thermal resistance of the device and heat dissipat-

ing means must be equal to (150 - 70)/1.8 = 45°C/W.
Junction to pin thermal resistance of the package is about 20°C/W. That means external heat sink of about

25°C/W is required.
Cu ground plane of PCB can be used as heat dissipating means.
Stand-By switches must be able to discharge C

current.

svr

3/7

TDA7299

j

pp

j

Figure 2. On Board Copper Area

Vcc = 12V
Rl = 4 ohm
Pout = 2W
Pd = 1.8W

TDA7299

∆

Tj = 108°C

∆

Tpin = 82°C

∆

Tj = 96°C

∆

Tpin = °70C

copper 35um

copper area
2 x 1 cm
Rth

-a = 60°C/W

co

er area
3 x 3 cm
Rth

-a = 53°C/W

Figure 3. P

Figure 4. P

vs Supply Voltage (Rload = 8Ω)

out

AUDIO PRECISION remote vs measured

Pout(W)

vs Supply Voltage (Rload = 4Ω)

out

Pout(W)

5

THD = 10%

1

0.1

4.500 6.000 7.500 9.000 10.50 12.00 13.50 15.00 16.50 18.00

AUDIO PRECISION r e mot e vs measured

5

Power dissipation
limitation

LEVEL(W)

LEVEL(W)

DMM(Vdc)

THD = 0.1%

Rload= 8 ohm
f = 1KHz

DMM(Vdc)

Power dissipation
limited

Vs (V)

THD = 10%

1

0.1

4.500 6.000 7.500 9.000 10.50 12.00 13.50 15.00 16.50 18.00

THD = 0. 1%

Rload = 4 OHM
f = 1KHz

Current Limiter
Intervention

Vs (V)

4/7

Figure 5. SVR v s Frequency

k

AUDIO PRE CISION remo te vs m easured

S.V.R.(dB )

-30.00

-35.00

-40.00

XTALK(dB)

TDA7299

FREQ(Hz)

-45.00

-50.00

-55.00

-60.00

-65.00

-70.00

-75.00

-80.00
20 100 1k 10k 20

Vs = 4.5V

Vs = 9V

Rload = 4 OHM

SVR

= 47uF

C
Rs = 600OHM
Vrip = 0.5 Vrms

Vs = 12V

Vs = 18V

Frequency (Hz)

5/7

TDA7299

DIM.

D (1) 4.8 5.0 0.189 0.197

F (1) 3.8 4.0 0.15 0.157

(1) D and F do not include mold flash or protrusions. Mold flash or
potrusions shall not exceed 0.15mm (.006inch).

MIN. TYP. MAX. MIN. TYP. MAX.

A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
a3 0.65 0.85 0.026 0.033

b 0.35 0.48 0.014 0.019
b1 0.19 0.25 0.007 0.010

C 0.25 0.5 0.010 0.020
c1 45° (typ.)

E 5.8 6.2 0.228 0.244

e 1.27 0.050
e3 3.81 0.150

L 0.4 1.27 0.016 0.050

M 0.6 0.024

S8° (max.)

mm inch

OUTLINE AND

MECHANICAL DATA

SO8

6/7

TDA7299

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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implic ation or otherwise under any patent or p at ent rights of STMicroelectronics. Spec i fications mentioned i n this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as cri t i cal compone nts in life support device s or systems without express written approval of STMicroel ectronics.

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