Datasheet TDA7499 Datasheet (SGS Thomson Microelectronics)

TDA7499

6 + 6W STEREO AMPLIFIER WITH MUTE & ST-BY

WIDE SUPPLY VOLTAGE RANGE UP TO
±18V

6 + 6W @ THD=10%,R

L

=8Ω,VS=+14V
NO POP AT TURN-ON/OFF
MUTE(POP FREE)
STAND-BY FEATURE (LOWI

q

)
SHORTCIRCUITPROTECTIONTO GND
THERMALOVERLOADPROTECTION

DESCRIPTION

The TDA7499 is class AB dual Audio power am­plifier assembled in the Multiwatt package, spe­cially designed for high quality sound application
as Hi-Fi music centers and stereo TV sets.

May 1997

Multiwatt11

ORDERING NUMBER: TDA7499

+5V

18K15K

IN (L)

1µF

15K 1µF

MUTE/

ST-BY

GND

IN (R)

1µF

4.7Ω

4.7Ω

100nF

100nF

OUT (L)

OUT (R)

1000µF

1000µF

+V

S

3

5
7

9

6

11

2

4+

+

-

-

D94AU085

RL (L)

RL (R)

-V

S

µP

560Ω

18K

IN- (L)8

10 IN- (R)

1

560Ω

18K

Figure 1: Typical ApplicationCircuit

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ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

S

DC Supply Voltage ±20 V

I

O

Output PeakCurrent (internally limited) 2.5 A

P

tot

Power Dissipation T

case

=70°C23W

T

op

Operating Temperature 0 to 70 °C

T

stg,Tj

Storage and Junction Temperature -40to +150 °C

1

2

3

4

5

6

7

9

10

11

8

IN+(1)
IN-(1)
GND
IN-(2)
IN+(2)

-V

S

MUTE
OUTPUT(2)
+V

S

OUTPUT(1)

-V

S

TAB CONNECTED TO PIN 6

D95AU316

PIN CONNECTION(Topview)

THERMAL DATA

Symbol Description Value Unit

R

th j-case

Thermal Resistance Junction-case Max 2.8 °C/W

R

th j-amb

Thermal Resistance Junction to Ambient Max 35 °C/W

PLAY

5V

R2

15K

IN (L)

C3 1µF

R1

10K

C1

1µF

MUTE/ST-BY

IN (R)

C4 1µF

R8

4.7Ω

R7
1K

C7

0.1µF

OUT (L)

OUT (R)

C5

1000µF

+V

S

3

5
7

9

6

11

2

4+

+

-

-

D96AU444

OUT

(L)

OUT

(R)

GND

R4

30K

IN- (L)8

10

IN- (R)

1

R5
1K

R6

30K

R9

4.7Ω

C9 470µF

C10 470µF

C8

0.1µF

R3

15K

0

MUTE

Q1

BSX33

C6

0.1µF

D1 5.1V

C2

100µF

Figure 2: Single SupplyApplication

TDA7499

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ELECTRICALCHARACTERISTICS (Refer to the test circuit, VS= + 14V; RS =50Ω;
G

V

= 30dB;f = 1KHz; T

amb

=25°C, unless otherwise specified.)

Symbol Parameter Test Condition Min. Typ. Max. Unit

V

S

Supply Range RL=8Ω +5 +18 V

R

L

=4Ω +5 +13.5 V

I

q

Total Quiescent Current 50 90 mA

V

OS

Input Offset Voltage –25 +25 mV

I

b

Output BiasCurrent 500 nA

P

O

Output Power THD = 10%

R

L

=8Ω ;

V

S

+ 11V; RL=4Ω

810

7.5

W
W

THD = 1%
R

L

=8Ω ;

V

S

+ 11V; RL=4

Ω

6 7.5

6

W
W

THD Total Harmonic Distortion R

L

=8Ω ;PO= 1W; f = 1KHz 0.03 %

R

L

=8Ω ;

P

O

= 0.1 to 5W; VS+ 13V;

f = 100Hz to 15KHz

0.2 0.5 %

R

L

=4Ω;PO= 1W; f = 1KHz 0.02 %

R

L

=4Ω ;VS+ 10V;

P

O

= 0.1 to 4W;

f = 100Hz to 15KHz

0.2 1 %

C

T

Cross Talk f = 1KHz

f = 10KHz 50

70
60

dB
dB

SR Slew Rate 6.5 10 V/µs

G

OL

Open Loop Voltage Gain 80 dB

e

N

Total Input Noise A Curve

f = 20Hz to 22KHz

3
48

µ

V

µV

R

i

Input Resistance 15 20 KΩ

SVR Supply Voltage Rejection

(each channel)

fr = 100Hz Vr = 0.5V 60 dB

T

j

Thermal Shut-down
Junction Temperature

145 °C

MUTE FUNCTION [ref: +V

S

]

VT

MUTE

Mute / Play Threshold -7 -6 -5 V

A

M

Mute Attenuation 60 70 dB

STAND-BY FUNCTION [ref: +V

S

] (only For Split Supply)

VT

ST-BY

Stand-by / Mute Threshold -3.5 -2.5 -.5 V

A

ST-BY

Stand-by Attenuation 110 dB

I

q ST-BY

Quiescent Current @ Stand-by 3 6 mA

TDA7499

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MUTE STAND-BY FUNCTION

The pin 5 (MUTE/STAND-BY) controls the ampli­fier status by two different thresholds, referred to
+V

S

.

- When V

pin5

higher than = +VS - 2.5V the
amplifier is in Stand-by mode and the final
stage generatorsare off

- when V

pin5

is between +VS- 2.5V and+V

S

- 6V the final stage current generators are
switched on and the amplifier is in mute
mode

- when V

pin5

is lower than +VS - 6V the am-

plifier is play mode.

t

OFF

STDBY

MUTE MUTE

MUTE

MUTE

PLAY STDBY PLAY OFF

STDBY

20

+V

S

(V)

-20

-V

S

V

IN

(mV)

Vpin5

(V)

V

S

VS-2.5

V

S-

6

V

S

-10

I

q

(mA)

0

VOUT

(V)

D94AU086

Figure 3.

TDA7499

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R3

IN (L)

C1

R2 C3

MUTE/

ST-BY

GND

IN (R)

C2

R7

R10

C8

C9

OUT (L)

OUT (R)

C6

C4

+V

S

3

5
7

9

6

11

2

4+

+

-

-

D94AU087

RL (L)

RL (R)

+V

S

-V

S

R9

R5

IN- (L)8

10 IN- (R)

1

SW1

R1

DZ

R4

SW2

C7

R8

R6

C5

Figure 4: Test and Application Circuit (StereoConfiguration).

APPLICATIONS SUGGESTION

(Demo Board Schematic)
The recommendedvalues of the external compo-

nents are those shownare the demo board sche­matic different values can be used: the following
table can help the designer.

COMPONENTS

RECOMMENDED

VALUE

PURPOSE

LARGER THAN

RECOMMENDED VALUE

SMALLER THAN

RECOMMENDED VALUE

R1 10KΩ Mute Circuit

Increase of Dz
Biasing Current

R2 15KΩ Mute Circuit V

pin

# 5 Shifted Downward V

pin

# 5 Shifted Upward

R3 18KΩ Mute Circuit V

pin # 5 Shifted Upward Vpin # 5 Shifted Downward

R4 15K

Ω

Mute Circuit V

pin

# 5 Shifted Upward V

pin

# 5 Shifted Downward

R5, R8 18K

Ω

Closed Loop Gain
Setting (*)

Increase of Gain

R6, R9 560Ω Decrease of Gain

R7, R10 4.7Ω Frequency Stability Danger of Oscillations Danger of Oscillations

C1, C2 1µF

Input DC
Decoupling

Higher Low Frequency
Cutoff

C3 1µF

St-By/Mute Time
Constant

Larger On/Off Time Smaller On/Off Time

C4, C6 1000µF

Supply Voltage
Bypass

Danger of Oscillations

C5, C7 0.1µF

Supply Voltage
Bypass

Danger of Oscillations

C8, C9 0.1µF FrequencyStability

Dz 5.1V Mute Circuit

(*) Closed loop gain has to be => 25dB

TDA7499

5/7

MULTIWATT11 PACKAGE MECHANICAL DATA

DIM.

mm inch

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

A 5 0.197
B 2.65 0.104
C 1.6 0.063
D 1 0.039
E 0.49 0.55 0.019 0.022

F 0.88 0.95 0.035 0.037

G 1.57 1.7 1.83 0.062 0.067 0.072

G1 16.87 17 17.13 0.664 0.669 0.674
H1 19.6 0.772
H2 20.2 0.795

L 21.5 22.3 0.846 0.878
L1 21.4 22.2 0.843 0.874
L2 17.4 18.1 0.685 0.713
L3 17.25 17.5 17.75 0.679 0.689 0.699
L4 10.3 10.7 10.9 0.406 0.421 0.429
L7 2.65 2.9 0.104 0.114

M 4.1 4.3 4.5 0.161 0.169 0.177

M1 4.88 5.08 5.3 0.192 0.200 0.209

S 1.9 2.6 0.075 0.102

S1 1.9 2.6 0.075 0.102

Dia1 3.65 3.85 0.144 0.152

TDA7499

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Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences 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 implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men­tioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without ex­press written approval of SGS-THOMSON Microelectronics.

 1997SGS-THOMSON Microelectronics - All Rights Reserved

 MULTIWATT is a registered trademark of companies belonging to the SGS-THOMSON Microelectronics Group

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TDA7499

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