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TDA7245ASTN/a11avai6W AUDIO AMPLIFER WITH STAND-BY
TDA7245AN/a15avai6W AUDIO AMPLIFER WITH STAND-BY


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TDA7245A
6W AUDIO AMPLIFER WITH STAND-BY
TDA7245A
6W AUDIO AMPLIFIER WITH STAND-BY
STAND-BY FUNCTION
SUPPLY VOLTAGE RANGE UP TO 30V
MUSIC POWER = 16W (RL = 4Ω, d = 10%)
THERMAL PROTECTION
DESCRIPTION

The TDA7245A is a monolithic integrated circuit
in 9+9 POWERDIP package, intended for use as
low frequency power amplifier in a wide range of
applications in radio and TV sets.
Figure 1: Test and Application Circuit
ABSOLUTE MAXIMUM RATINGS
PIN CONNECTION (Top view)
THERMAL DATA
Figure 2: Schematic Diagram
TDA7245A
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tamb = 25°C, VS = 16.5V, RL = 4Ω, f =
1kHz; unless otherwise specified).
STAND-BY FUNCTION
Note (*):

MUSIC POWER CONCEPT
MUSIC POWER is ( according to the IEC clauses n.268-3 of Jan 83) the maximal power which the amplifier is capable of producing across the
rated load resistance (regardless of non linearity) 1 sec after the application of a sinusoidal input signal of frequency 1KHz.
According to this definition our method of measurement comprises the following steps:
1) Set the voltage supply at the maximum operating value -20%
2) Apply a input signal in the form of a 1KHz tone burst of 1 sec duration; the repetition period of the signal pulses is > 60 sec
3) The output voltage is measured 1 sec from the start of the pulse
4) Increase the input voltage until the output signal show a THD = 10%
5) The music power is then V2 out/R1, where Vout is the output voltage measured in the condition of point 4) and R1 is the rated load impedance
The target of this method is to avoid excessive dissipation in the amplifier.
TDA7245A
Figure 3: Output Power vs. Supply Voltage Figure 4: Output Power vs. Supply Voltage
TDA7245A
POWERDIP 18 PACKAGE MECHANICAL DATA
TDA7245A
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