|
|
|
부품번호 | TDA7382 기능 |
|
|
기능 | 4 x 22W FOUR BRIDGE CHANNELS CAR RADIO AMPLIFIER | ||
제조업체 | ST Microelectronics | ||
로고 | |||
전체 10 페이지수
® TDA7382
4 x 22W FOUR BRIDGE CHANNELS CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY:
4 x 30W max./4Ω EIAJ
4 x 22W/4Ω @ 14.4V, 1KHz, 10%
4 x 18.5W/4Ω @ 13.2V, 1KHz, 10%
CLIPPING DETECTOR (THD = 10%)
LOW DISTORTION
LOW OUTPUT NOISE
ST-BY FUNCTION
MUTE FUNCTION
AUTOMUTE AT MIN. SUPPLY VOLTAGE DE-
TECTION
LOW EXTERNAL COMPONENT COUNT:
– INTERNALLY FIXED GAIN (26dB)
– NO EXTERNAL COMPENSATION
– NO BOOTSTRAP CAPACITORS
PROTECTIONS:
OUTPUT SHORT CIRCUIT TO GND, TO VS,
ACROSS THE LOAD
VERY INDUCTIVE LOADS
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
BLOCK AND APPLICATION DIAGRAM
FLEXIWATT25
ORDERING NUMBER: TDA7382
REVERSED BATTERY
ESD PROTECTION
DESCRIPTION
The TDA7382 is a new technology class AB
Audio Power Amplifier in Flexiwatt 25 package
designed for high end car radio applications.
Thanks to the fully complementary PNP/NPN out-
put configuration the TDA7382 allows a rail to rail
output voltage swing with no need of bootstrap
capacitors. The extremely reduced components
count allows very compact sets. The on-board
clipping detector simplifies gain compression op-
erations.
ST-BY
MUTE
IN1
0.1µF
Vcc1
IN2
0.1µF
IN3
0.1µF
IN4
0.1µF
AC-GND
0.1µF
SVR
47µF
September 1999
Vcc2
TAB
S-GND
2.200µF
100nF
CLIPPING DET.
OUT1+
OUT1-
PW-GND
OUT2+
OUT2-
PW-GND
OUT3+
OUT3-
PW-GND
OUT4+
OUT4-
PW-GND
D98AU818
1/10
TDA7382
Figure 1: Standard Test and Application Circuit
ST-BY
MUTE
IN1
R1
10K
R2
47K
C1
0.1µF
IN2
C2 0.1µF
IN3
C3 0.1µF
IN4
C4 0.1µF
C8
0.1µF
4
C9
1µF
22
C10
1µF
11
C7
2200µF
Vcc1-2 Vcc3-4
6 20
9
8
7
5
2
3
12 17
18
19
15
S-GND
14
13
16
C5
0.1µF
21
24
23
10
SVR
C6
47µF
25
1
TAB
CLIPPING DET.
OUT1
OUT2
OUT3
OUT4
D98AU819
4/10
4페이지 Figure 9: Output Noise vs. Source Resistance
TDA7382
Figure 10: Power Dissipation & Efficiency vs.
Output Power
Ptot (W)
Ptot
Rg (Ω)
INPUT STAGE
The TDA7382’S inputs are ground-compatible
and can stand very high input signals (± 8Vpk)
without any performances degradation.
If the standard value for the input capacitors
(0.1µF) is adopted, the low frequency cut-off will
amount to 16 Hz.
STAND-BY AND MUTING
STAND-BY and MUTING facilities are both
CMOS-COMPATIBLE. If unused, a straight con-
nection to Vs of their respective pins would be ad-
missible. Conventional low-power transistors can
be employed to drive muting and stand-by pins in
Figure 11: Input/OutputBiasing.
100KΩ
0.1µF
C1 ÷ C4
IN
absence of true CMOS ports or microprocessors.
R-C cells have always to be used in order to
smooth down the transitions for preventing any
audible transient noises.
Since a DC current of about 10 uA normally flows
out of pin 22, the maximum allowable muting-se-
ries resistance (R2) is 70KΩ, which is sufficiently
high to permit a muting capacitor reasonably
small (about 1µF).
If R2 is higher than recommended, the involved
risk will be that the voltage at pin 22 may rise to
above the 1.5 V threshold voltage and the device
will consequently fail to turn OFF when the mute
line is brought down.
About the stand-by, the time constant to be as-
+
-
8KΩ
400Ω
VS
10KΩ
70KΩ SVR
10KΩ
100KΩ
47µF
C6
400Ω
8KΩ
AC_GND
-
+
0.1µF
C5
D95AU302
TOWARDS
OTHER CHANNELS
7/10
7페이지 | |||
구 성 | 총 10 페이지수 | ||
다운로드 | [ TDA7382.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
TDA7381 | 4 x 25W QUAD BRIDGE CAR RADIO AMPLIFIER | ST Microelectronics |
TDA7382 | 4 x 22W FOUR BRIDGE CHANNELS CAR RADIO AMPLIFIER | ST Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |