TDA7454 datasheet(1/13 Pages) STMICROELECTRONICS

tên linh kiện	TDA7454

Giải thích chi tiết về linh kiện	4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER

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TDA7454

4 x 35W HIGH EFFICIENCY QUAD BRIDGE

CAR RADIO AMPLIFIER

HIGH OUTPUT POWER CAPABILITY:

4 x 40W/4

Ω MAX.

4 x 35W/4

Ω EIAJ.

4 x 25W/4

Ω @14.4V, 1KHz, 10%

4 x 60W/2

Ω MAX.

2

Ω DRIVING CAPABILITY

DUAL MODE OPERATING EXTERNALLY

PRESETTABLE: CONVENTIONAL CLASS A-

B MODE, HIGH EFFICIENCY MODE

LOW EXTERNAL COMPONENTS COUNT:

– NO BOOTSTRAP CAPACITORS

– NO EXTERNAL COMPENSATION

– INTERNALLY FIXED GAIN (26dB)

CLIPPING DETECTOR

ST-BY FUNCTION (CMOS COMPATIBLE)

MUTE FUNCTION (CMOS COMPATIBLE)

AUTOMUTE AT MINIMUM SUPPLY

VOLTAGE DETECTION

LOW RADIATION

Protections:

OUPUT SHORT CIRCUIT

TO GND; TO VS; ACROSS THE LOAD

3 STEPS OVERRATING CHIP TEMPERA-

TURE WITH THERMAL WARNING

LOAD DUMP VOLTAGE

FORTUITOUS OPEN GND

LOUDSPEAKER DC CURRENT

ESD

DESCRIPTION

The TDA7454 is a new BCD technology QUAD

BRIDGE type of car radio amplifier in Flexiwatt25

packagespecially intendedfor car radio applications.

Among the features, its superior efficiency per-

formance coming from the internal exclusive

structure, makes it the most suitable device to

simplify the thermal management in high power

sets. The dissipated output power under average

listening condition is in fact reduced up to 50%

when compared to the level provided by conven-

tional class AB solutions.

October 1999

Flexiwatt 25

7

8

9

-

+

5

2

3

+

-

19

18

17

21

24

23

-

+

-

RIGHT FRONT

RIGHT REAR

LEFT FRONT

LEFT REAR

SVR

11

12

15

14

MUTE

22

ST-BY

4

IN LEFT

REAR

IN LEFT

FRONT

100

µF

IN RIGHT

FRONT

IN RIGHT

REAR

0.22

µF

0.22

µF

0.22

µF

0.22

µF

10

CD

25

1

TAB

13

S-GND

STD/HI- EFF

16

VCC2

VCC1

VCC

20

6

D94AU172C

BLOCK & APPLICATION DIAGRAM

MULTIPOWER BCD TECHNOLOGY

1/13

Số phần tương tự - TDA7454

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	TDA7451	79Kb / 9P	4x7W OR 2x22W CAR RADIO POWER AMPLIFIER PLUS TRIPLE POWER SUPPLY Oct-1999

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