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TDA7381 データシート(PDF) 1 Page - STMicroelectronics

部品番号 TDA7381
部品情報  4 x 25W quad bridge car radio amplifier
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7381 データシート(HTML) 1 Page - STMicroelectronics

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June 2008
Rev 6
1/13
13
TDA7381
4 x 25W quad bridge car radio amplifier
Features
High output power capability:
–4 x 30 W/4
Ω max.
–4 x 25 W/4
Ω EIAJ
–4 x 18 W/4
Ω @ 14.4 V, 1 kHz, 10 %
–4 x 15 W/4
Ω @ 13.2 V, 1 kHz, 10 %
Clipping detector
Low distortion
Low output noise
St-by function
Mute function
Automute at min. supply voltage detection
Diagnostics facility for:
– Clipping
– Out to GND short
– Out to VS short
– Thermal shutdown
Low external component count:
– Internally fixed gain (26 dB)
– 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
Reversed battery
ESD protection
Description
The TDA7381 is a class AB audio power amplifier
in Flexiwatt25 package designed for car radio
applications. Thanks to the fully complementary
PNP/NPN output configuration the TDA7381
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 operations.
The fault diagnostics makes it possible to detect
mistakes during Car- Radio assembly and wiring
in the car
Flexiwatt25
Table 1.
Device summary
Order code
Package
Packing
TDA7381
Flexiwatt25
Tube
www.st.com


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