TDA7564B Datasheet, PDF (1/34 Pages) STMicroelectronics – 4 x 50W multifunction quad power amplifier with built-in diagnostics features

TDA7564B
4 x 50W multifunction quad power amplifier
with built-in diagnostics features
Features
■ Multipower BCD technology
■ MOSFET output power stage
■ DMOS power output
■ New Hi-efficiency (class SB)
■ High output power capability 4x28W/4Ω @
14.4V, 1KHz, 10% THD, 4x50W max, power
■ Max. output power 4x72W/2Ω
■ Full I²C bus driving:
– St-by
– Independent front/rear soft play/mute
– Selectable gain (for low noise line output
function)
– High efficiency enable/disable
– I²C bus digital diagnostics (including AC
and DC load detection)
■ Full fault protection
■ DC offset detection
■ Four independent short circuit protection
■ Clipping detector (2%/10%)
■ Linear thermal shutdown with multiple thermal
warning
■ ESD protection
Description
The TDA7564B is a new BCD technology QUAD
BRIDGE type of car radio amplifier in
Flexiwatt25
(Vertical)
Flexiwatt25
(Horizontal)
PowerSO36
Flexiwatt25/PowerSO36 package specially
intended for car radio applications.
Thanks to the DMOS output stage the TDA7564B
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 diagnostics array that
communicates the status of each speaker through
the I²C bus.
Table 1. Device summary
Order code
TDA7564B
TDA7564BH
TDA7564BPD
TDA7564BPDTR
Package
Flexiwatt25 (vertical)
Flexiwatt25 (horizontal)
PowerSO36
PowerSO36
Packing
Tube
Tube
Tube
Tape and reel
January 2008
Rev 2
1/34
www.st.com
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