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TDA7575B Fiches technique(PDF) 1 Page - STMicroelectronics

No de pièce TDA7575B
Description  2 x 75W multifunction dual-bridge power amplifier with integrated digital diagnostics
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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October 2007
Rev 1
1/32
1
TDA7575B
2 x 75W multifunction dual-bridge power amplifier
with integrated digital diagnostics
Features
Multipower bcd technology
MOSFET output power stage
DMOS power output
New Hi-efficiency (class AB)
Single-channel 1Ω driving capability
High output power capability 2x28W/4Ω @
14.4V, 1KHz, 10% THD
Max. output power 2x75W/2Ω, 1x150W/1Ω
Single-channel 1Ω driving capability
– 84W undistorted power
– Full I2C bus driving with 4 address
possibilities:
- St-by
- Play/mute
- Gain 12/26dB
- Full digital diagnostic (AC and DC loads)
Possibility to disable the I2C bus
Differential inputs
Full fault protection
DC offset detection
Two independent short circuit protections
Diagnostic on clipping detector with selectable
threshold (2%/10%)
Clipping detector as diagnostic pin when I2C
bus is disabled
St-by/mute pins
ESD protection
Description
The TDA7575B is a new MOSFET dual bridge
amplifier specially intended for car radio
applications. Thanks to the DMOS output stage
the TDA7575B has a very low distortion allowing
a clear powerful sound.
Among the features, its superior efficiency
performance 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
conventional class AB solutions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I2C bus. The TDA7575B has also the
possibility of driving loads down to 1
Ω paralleling
the outputs into a single channel. It is also
possible to disable the I2C and control the
TDA7575B by means of the usual ST-BY and
MUTE pins.
PowerSO36 (Slug up)
Flexiwatt 27
Table 1.
Device summary
Order code
Package
Packing
TDA7575B
Flexiwatt 27
Tube
TDA7575BPD
PowerSSO36 (slug up)
Tube
TDA7575BPDTR
PowerSSO36 (slug up)
Tape and reel
www.st.com


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