SGS Thomson Microelectronics TDA7293V Datasheet

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TDA7293

120V - 100W DMOS AUDIO AMPLIFIER WITHMUTE/ST-BY

VERY HIGH OPERATING VOLTAGE RANGE
(±50V)

DMOSPOWERSTAGE
HIGH OUTPUT POWER (100W @ THD =

10%, R

L =8

,VS=±40V)

Ω

MUTING/STAND-BYFUNCTIONS
NO SWITCHON/OFF NOISE
VERYLOW DISTORTION
VERYLOW NOISE
SHORTCIRCUIT PROTECTION
THERMALSHUTDOWN
CLIPDETECTOR
MODULARITY (MORE DEVICES CAN BE

EASILY CONNECTED IN PARALLEL TO
DRIVE VERYLOW IMPEDANCES)

DESCRIPTION

The TDA7293 is a monolithic integrated circuit in
Multiwatt15 package, intended for use as audio
class AB amplifier in Hi-Fi field applications
(Home Stereo, self powered loudspeakers, Top-

Figure 1: Typical Applicationand Test Circuit

MULTIPOWER BCD TECHNOLOGY

Multiwatt15

ORDERING NUMBER: TDA7293V

class TV). Thanks to the wide voltage range and
to the high out current capability it is able to sup­ply the highest powerinto both4Ω and 8Ω loads.

The built in muting function with turn on delay
simplifiesthe remote operation avoiding switching
on-off noises.
Parallel mode is made possible by connecting
more device through of pin11. High output power
can be deliveredto verylow impedance loads, so
optimizingthe thermal dissipation ofthe system.

VMUTE

VSTBY

December1999

C7 100nF C6 1000µF

R3 22K

C2

R2

22µF

680Ω

C1 470nF

R1 22K

R5 10K

R4 22K

C3 10µFC410µF

IN- 2

IN+

3

4

SGND
(**)

10

MUTE

9

STBY

(*) see Application
(**) for SLAVE function

note

MUTE

STBY

1
STBY-GND

+Vs

BUFFER DRIVER

713

11

-

+

THERMAL

SHUTDOWN

-Vs -PWVs

C9 100nF C8 1000µF

PROTECTION

158

-Vs

+PWVs+Vs

S/C

14

12

6
5

D97AU805A

OUT

BOOT
LOADER

C5

22µF

BOOTSTRAP

CLIP DET

(*)

VCLIP

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TDA7293

PIN CONNECTION (Top view)

TAB CONNECTED TO PIN 8

15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

D97AU806

-VS(POWER)
OUT

(POWER)

+V

S

BOOTSTRAP LOADER
BUFFER DRIVER
MUTE
STAND-BY

-V

(SIGNAL)

S

+VS(SIGNAL)
BOOTSTRAP
CLIP AND SHORT CIRCUIT DETECTOR
SIGNAL GROUND
NON INVERTING INPUT
INVERTING INPUT
STAND-BY GND

QUICK REFERENCEDATA

Symbol Parameter Test Conditions Min. Typ. Max. Unit

V

S

G

LOOP

P

tot

SVR Supply Voltage Rejection 75 dB

Supply Voltage Operating ±12 æ 50 V
Closed Loop Gain 26 40 dB
Output Power VS=±45V; RL=8Ω; THD = 10% 140 W

= ±30V; RL =4Ω; THD = 10% 110 W

V

S

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

S

V
V

2 -V3 Maximum Differential Inputs ±30 V

V

V
V
V
V
V

V

10
11 Buffer Voltage Referred to -VS 120 V

V
V

12

I

O

P

tot

T

op

T

stg,Tj

Supply Voltage (No Signal)
V

1
2

3
4

5 Clip Detector Voltage Referred to -VS 120 V
6
9

STAND-BY

Input Voltage (inverting) Referred to -V

Input Voltage (non inverting) Referred to -V
Signal GND Voltage Referred to -V

Bootstrap Voltage Referred to -V
Stand-by Voltage Referred to -V
Mute Voltage Referred to -V

Bootstrap Loader Voltage Referred to -V

GND Voltage Referred to -VS(pin 8) 90 V

S

S

S

S

S

S

S

Output Peak Current 10 A
Power Dissipation T

=70°C50W

case

Operating Ambient Temperature Range 0 to 70
Storage and Junction Temperature 150

60 V

±

90 V

90 V
90 V

120 V
120 V
120 V

100 V

THERMAL DATA

Symbol Description Typ Max Unit

R

th j-case

Thermal Resistance Junction-case 1 1.5

°
°

C/W

°

C
C

2/13

TDA7293

ELECTRICALCHARACTERISTICS(Refer to the Test Circuit VS= ±40V,RL=8Ω,Rg=50Ω;

T

=25°C,f = 1 kHz; unlessotherwise specified).

amb

Symbol Parameter Test Condition Min. Typ. Max. Unit

V

V

I
P

Supply Range

S

Quiescent Current 30 mA

I

q

Input Bias Current 0.3 1

I

b

Input Offset Voltage -10 10 mV

OS

Input Offset Current 0.2

OS

RMS Continuous Output Power d = 1%:

O

R

=4Ω; VS = ± 29V,

L

d = 10%
R

=4Ω ;VS=±29V

L

d Total Harmonic Distortion (**) P

I

Current Limiter Threshold 6.5 A

SC

= 5W; f = 1kHz

O

P

=0.1to 50W;f = 20Hz to 15kHz

O

SR Slew Rate 15 V/µs

G
G

e

Open Loop Voltage Gain 80 dB

V

Closed Loop Voltage Gain (1) 30 dB

V

Total Input Noise A = curve

N

f = 20Hz to 20kHz

R

SVR Supply Voltage Rejection f = 100Hz; V

T

Input Resistance 100 kΩ

i

= 0.5Vrms 75 dB

ripple

Thermal Protection DEVICE MUTED 150

S

DEVICE SHUT DOWN 160 °C

STAND-BY FUNCTION (Ref: to pin 1)

V
V

ATT

I

q st-by

ST on
ST off

Stand-by on Threshold 1.5 V
Stand-by off Threshold 3.5 V
Stand-by Attenuation 70 90 dB

st-by

Quiescent Current @ Stand-by 0.5 mA

MUTE FUNCTION (Ref: to pin 1)

V
V

ATT

Mute on Threshold 1.5 V

Mon

Mute off Threshold 3.5 V

Moff

Mute AttenuatIon 60 80 dB

mute

CLIP DETECTOR

Ω

Duty Duty Cycle ( pin 5) THD = 1% ; RL = 10K

to 5V 10 %

THD = 10% ;
RL = 10KΩto 5V

I

CLEAK

SLAVE FUNCTION pin 4 (Ref: to pin 8 -V

V

Slave

V

Master

Note (1): GVmin ≥ 26dB
Note: Pin 11 only for modular connection.Max external load 1MΩ/10 pF,only for test purpose

Note (**): Tested with optimized Application Board (see fig. 2)

SlaveThreshold 1V
Master Threshold 3 V

PO = 50W 1 µA

)

S

12

±

50 V

±

80
80

100
100

0.005

0.1

1
25

40 %

A

µ

A

µ

W

W

%
%

V

µ

V

µ

C

°

3/13

TDA7293

Figure 2: Typical Application P.C. Boardand ComponentLayout (scale1:1)

4/13