TDA7350A STMicroelectronics, TDA7350A Datasheet - Page 9

• Manufacturer Part Number: TDA7350A
• Description: IC AMP AUDIO PWR 22W MULTIWATT11
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA7350A

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 22W x 1 @ 3.2 Ohm; 11W x 2 @ 2 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: Depop, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Package / Case: Multiwatt-11 (Vertical, Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3972-5

Figure 24. Power Dissipation & Efficiency vs.
Output Power (Stereo)
Figure 25. Power Dissipation & Efficiency vs.
Output Power (Bridge)
Figure 26. Power Dissipation & Efficiency vs.
Output Power (Bridge))
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The TDA7350A has been developed taking care of
the key concepts of the modern power audio am-
plifier for car radio such as: space and costs sav-
ing due to the minimized external count, excellent
electrical performances, flexibility in use, superior
reliability thanks to a built-in array of protections.
As a result the following performances has been
achieved:
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4.1 Polarization
The device is organized with the gain resistors di-
rectly connected to the signal ground pin i.e. with-
out gain capacitors (fig. 27).
The non inverting inputs of the amplifiers are con-
nected to the SVR pin by means of resistor divid-
ers, equal to the feedback networks. This allows
the outputs to track the SVR pin which is sufficient-
ly slow to avoid audible turn-on and turn-off tran-
sients.
4.2 SVR
The voltage ripple on the outputs is equal to the
one on SVR pin: with appropriate selection of CS-
VR, more than 55dB of ripple rejection can be ob-
tained.
NO NEED OF BOOTSTRAP CAPACITORS
EVEN AT THE HIGHEST OUTPUT POWER
LEVELS
ABSOLUTE STABILITY WITHOUT EXTERNAL
COMPENSATION THANKS TO THE NNOVA-
TIVE OUT STAGE CONFIGURATION, ALSO
ALLOWING INTERNALLY FIXED LOSED
LOOP LOWER THAN COMPETITORS
LOW GAIN (30dB STEREO FIXED WITHOUT
ANY EXTERNAL COMPONENTS) IN ORDER
TO MINIMIZE THE OUTPUT NOISE AND OP-
TIMIZE SVR
SILENT MUTE/ST-BY FUNCTION FEATUR-
ING ABSENCE OF POP ON/OFF NOISE
HIGH SVR
STEREO/BRIDGE OPERATION WITHOUT
ADDITION OF EXTERNAL COMPONENT
AC/DC SHORT CIRCUIT PROTECTION (TO
GND, TO V
LOUDSPEAKER PROTECTION
DUMP PROTECTION
ESD PROTECTION
Amplifier Organization
Block Description
S
, ACROSS THE LOAD)
TDA7350A
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