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TDA7454 Datasheet

  • TDA7454

  • 4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER

  • 242.48KB

  • 13頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA7454
4 x 35W HIGH EFFICIENCY QUAD BRIDGE
CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY:
4 x 40W/4鈩?MAX.
4 x 35W/4
鈩?/div>
EIAJ.
4 x 25W/4
鈩?/div>
@14.4V, 1KHz, 10%
4 x 60W/2鈩?MAX.
2鈩?DRIVING CAPABILITY
DUAL MODE OPERATING EXTERNALLY
PRESETTABLE: CONVENTIONAL CLASS A-
B MODE, HIGH EFFICIENCY MODE
LOW EXTERNAL COMPONENTS COUNT:
鈥?NO BOOTSTRAP CAPACITORS
鈥?NO EXTERNAL COMPENSATION
鈥?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 V
S
; ACROSS THE LOAD
3 STEPS OVERRATING CHIP TEMPERA-
TURE WITH THERMAL WARNING
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
BLOCK & APPLICATION DIAGRAM
MULTIPOWER BCD TECHNOLOGY
Flexiwatt 25
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.
6
STD/HI- EFF
0.22碌F
IN RIGHT
FRONT
16
20
7
11
8
9
ST-BY
0.22碌F
4
13
5
12
2
3
19
18
17
SVR
10
1
21
14
24
25
23
VCC1
VCC2
VCC
-
RIGHT FRONT
+
S-GND
+
RIGHT REAR
-
-
LEFT FRONT
+
TAB
+
LEFT REAR
-
D94AU172C
IN RIGHT
REAR
MUTE
22
0.22碌F
15
IN LEFT
FRONT
100碌F
0.22碌F
IN LEFT
REAR
CD
October 1999
1/13

TDA7454 產(chǎn)品屬性

  • TDA7454 View All Specifications

  • 17

  • 集成電路 (IC)

  • 線性 - 音頻放大器

  • -

  • AB 類

  • 4-通道（四路）

  • 60W x 4 @ 2 歐姆

  • 8 V ~ 18 V

  • 靜音，短路和熱保護(hù)，待機(jī)

  • 通孔

  • 25-Flexiwatt

  • 25-Flexiwatt（彎曲和交錯(cuò)引線）

  • 管件

  • 497-2179-5

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