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PDF TDA1556Q Data sheet ( Hoja de datos )
| Número de pieza | TDA1556Q | |
| Descripción | 2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic distortion detector | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
TDA1556Q
2 x 22 W stereo BTL differential
amplifier with speaker protection
and dynamic distortion detector
Product specification
File under Integrated Circuits, IC01
July 1994
1 page  
Philips Semiconductors
2 x 22 W stereo BTL differential amplifier
with speaker protection and dynamic
Product specification
TDA1556Q
FUNCTIONAL DESCRIPTION
The TDA1556Q contains two identical amplifiers each with
a fixed gain of 26 dB and differential input stages.
The device can be used for bridge-tied-load applications.
The circuit has the following features:
• low stand-by current (< 100 µA)
• low mute/stand-by switching current (low cost supply
switch)
• mute facility
Loudspeaker protection
Should a short circuit to ground occur, thereby forcing a
DC voltage ≥ 1 V across the loudspeaker, a built-in
protection circuit is activated to limit the DC voltage across
the speaker to ≤ 1 V. The delay time of the protection
circuit can be influenced by the external capacitor
connected to pin 15.
A dynamic distortion detector (DDD) is activated when
clipping occurs at one or both output stages. Its
information may be used to operate a sound processor or
DC volume control to attenuate the input signal, thereby
minimizing the distortion.
LIMITING VALUES
In accordance with the absolute maximum system (IEC 134)
SYMBOL
PARAMETER
VP positive supply voltage
IOSM
IORM
Tstg
Tvj
Vpsc
Vpr
Ptot
non-repetitive peak output current
repetitive peak output current
storage temperature range
virtual junction temperature
AC and DC short-circuit safe voltage
energy handling capability at outputs
reverse polarity
total power dissipation
CONDITION
operating
non-operating
during 50 ms (load
dump protection);
rise time ≥ 2.5 ms
VP = 0
MIN. MAX. UNIT
− 18 V
− 30 V
− 45 V
−6A
−4A
−55 +150 °C
− +150 °C
− 18 V
− 200 mJ
−6V
− 60 W
DC CHARACTERISTICS
VP = 14.4 V; Tamb = 25 °C; unless otherwise specified
SYMBOL
PARAMETER
CONDITIONS
Supply
VP positive supply voltage
IP quiescent current
VO DC output voltage
Vos DC output offset voltage
Mute/stand-by
VON switch-on voltage level
note 1
note 2
operating
MIN.
TYP. MAX. UNIT
6.0
14.4 18
V
− 80 160 mA
−
6.9 −
V
− − 100 mV
8.5 − − V
July 1994
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TDA1556Q.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| TDA1556 | 2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic distortion detector | NXP Semiconductors |
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