Musica
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Publicado: 4 de febrero de 2010
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TDA7294
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
VERY HIGH OPERATING VOLTAGE RANGE (±40V) DMOS POWER STAGE HIGH OUTPUT POWER (UP TO100W MUSIC POWER) MUTING/STAND-BY FUNCTIONS NO SWITCH ON/OFF NOISE NO BOUCHEROT CELLS VERY LOW DISTORTION VERY LOW NOISE SHORT CIRCUIT PROTECTIONTHERMAL SHUTDOWN DESCRIPTION The TDA7294 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier inHi-Fi field applications (Home Stereo, self powered loudspeakers, Topclass TV). Thanks to the wide voltage range and Figure 1: Typical Application andTest Circuit MULTIPOWER BCD TECHNOLOGY
Multiwatt15V Multiwatt15H ORDERING NUMBERS: TDA7294V TDA7294HS
to the high out current capability it isable to supply the highest power into both 4Ω and 8Ω loads even in presence of poor supply regulation, with high Supply Voltage Rejection. The builtin muting function with turn on delay simplifies the remote operation avoiding switching on-off noises.
C7 100nF R3 22K C2 22µF +Vs R2 680Ω C1470nF IN2 7 -
+Vs
C6 1000µF
+PWVs 13 14 OUT C5 22µF 6 BOOTSTRAP R6 2.7Ω C10 100nF
IN+
3
+
R1 22K IN+MUTE R5 10K MUTE STBY R4 22K C310µF C4 10µF 4 10 9
VM VSTBY
MUTE STBY 1 STBY-GND 8
THERMAL SHUTDOWN
S/C PROTECTION 15 -PWVs C8 1000µF
D93AU011
-Vs C9 100nF -VsNote: The Boucherot cell R6, C10, normally not necessary for a stable operation it could be needed in presence of particular load impedances at VS
TDA7294
100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
VERY HIGH OPERATING VOLTAGE RANGE (±40V) DMOS POWER STAGE HIGH OUTPUT POWER (UP TO100W MUSIC POWER) MUTING/STAND-BY FUNCTIONS NO SWITCH ON/OFF NOISE NO BOUCHEROT CELLS VERY LOW DISTORTION VERY LOW NOISE SHORT CIRCUIT PROTECTIONTHERMAL SHUTDOWN DESCRIPTION The TDA7294 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier inHi-Fi field applications (Home Stereo, self powered loudspeakers, Topclass TV). Thanks to the wide voltage range and Figure 1: Typical Application andTest Circuit MULTIPOWER BCD TECHNOLOGY
Multiwatt15V Multiwatt15H ORDERING NUMBERS: TDA7294V TDA7294HS
to the high out current capability it isable to supply the highest power into both 4Ω and 8Ω loads even in presence of poor supply regulation, with high Supply Voltage Rejection. The builtin muting function with turn on delay simplifies the remote operation avoiding switching on-off noises.
C7 100nF R3 22K C2 22µF +Vs R2 680Ω C1470nF IN2 7 -
+Vs
C6 1000µF
+PWVs 13 14 OUT C5 22µF 6 BOOTSTRAP R6 2.7Ω C10 100nF
IN+
3
+
R1 22K IN+MUTE R5 10K MUTE STBY R4 22K C310µF C4 10µF 4 10 9
VM VSTBY
MUTE STBY 1 STBY-GND 8
THERMAL SHUTDOWN
S/C PROTECTION 15 -PWVs C8 1000µF
D93AU011
-Vs C9 100nF -VsNote: The Boucherot cell R6, C10, normally not necessary for a stable operation it could be needed in presence of particular load impedances at VS
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