TDA7296 データシートの表示（PDF） - STMicroelectronics

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TDA7296

70V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY

STMicroelectronics 

TDA7296

70V - 60W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY

1 FEATURES

■ MULTIPOWER BCD TECHNOLOGY

■ VERY HIGH OPERATING VOLTAGE RANGE

(±35V)

■ DMOS POWER STAGE

■ HIGH OUTPUT POWER (UP TO 60W MUSIC

POWER)

■ MUTING/STAND-BY FUNCTIONS

■ NO SWITCH ON/OFF NOISE

■ NO BOUCHEROT CELLS

■ VERY LOW DISTORTION

■ VERY LOW NOISE

■ SHORT CIRCUIT PROTECTION

■ THERMAL SHUTDOWN

2 DESCRIPTION

The TDA7296 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, Topclass TV).

Figure 2. Typical Application and Test Circuit

Figure 1. Package

Multiwatt15V

Multiwatt15H

(Short Leads)

Table 1. Order Codes

Part Number

TDA7296

TDA7296HS

Package

Multiwatt15V

Multiwatt15H (Short Leads)

Thanks to the wide voltage range and to the high

out current capability it is able to supply the high-

est power into both 4Ω and 8Ω loads even in pres-

ence of poor supply regulation, with high Supply

Voltage Rejection.

The built in muting function with turn on delay sim-

plifies the remote operation avoiding switching on-

off noises.

VM

VSTBY

C7 100nF

+Vs C6 1000µF

R3 22K

C2

22µF

R2

680Ω

IN- 2

C1 470nF

IN+ 3

R1 22K

IN+MUTE 4

R5 10K MUTE 10

MUTE

STBY 9

STBY

R4 22K

1

+Vs

7

-

+PWVs

13

14 OUT

+

C5

22µF

6

BOOT-

STRAP

THERMAL

SHUTDOWN

8

S/C

PROTECTION

15

C3 10µF

C4 10µF

STBY-GND

-Vs

C9 100nF

-PWVs

C8 1000µF

D93AU011

-Vs

Note: The Boucherot cell R6, C10, normally not necessary for a stable operation it could

be needed in presence of particular load impedances at VS <±25V.

R6

2.7Ω

C10

100nF

February 2005

Rev. 10

1/15

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