TDA7381 Ver la hoja de datos (PDF) - STMicroelectronics
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TDA7381 Datasheet PDF : 15 Pages
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TDA7381
4 x 25 W quad bridge car radio amplifier
Datasheet production data
Features
■ High output power capability:
– 4 x 30 W/4 max.
– 4 x 25 W/4 EIAJ
– 4 x 18 W/4 @ 14.4 V, 1 kHz, 10 %
– 4 x 15 W/4 @ 13.2 V, 1 kHz, 10 %
■ Clipping detector
■ Low distortion
■ Low output noise
■ Standby 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
'!0'03
Flexiwatt25
– 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.
Table 1.
Device summary
Order code
TDA7381
Package
Flexiwatt25
Packing
Tube
September 2013
This is information on a product in full production.
Doc ID 4947 Rev 8
1/15
www.st.com
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