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TDA2040
20W Hi-Fi AUDIO POWER AMPLIFIER
TDA204020W Hi-Fi AUDIO POWER AMPLIFIER
December 1995
DESCRIPTIONThe TDA2040 is a monolithic integrated circuit in
Pentawatt package, intended for use as an audio
class AB amplifier. Typically it provides 22W output
power (d = 0.5%) at Vs = 32V/4Ω . The TDA2040
provides high output current and has very low
harmonic and cross-over distortion. Further the
device incorporates a patented short circuit protec-
tion system comprising an arrangement for auto-
matically limiting the dissipated power so as to keep
the working point of the output transistors within
their safe operating area. A thermal shut-down
system is also included.
TEST CIRCUIT1/13
SCHEMATIC DIAGRAM
PIN CONNECTION
THERMAL DATA
TDA20402/13
ELECTRICAL CHARACTERISTICS
(refer to the test circuit, VS = ± 16V, Tamb = 25o C unless otherwise specified)
ABSOLUTE MAXIMUM RATINGS
TDA20403/13
Figure 1 : Output Power versus Supply Voltage
Figure 2 : Output Power versus Supply Voltage
Figure 3 : Output Power versus Supply Voltage
Figure 4 : Distortion versus Frequency
Figure 5 : Supply Voltage Rejection versus
Frequency
Figure 6 : Supply Voltage Rejection versus
Voltage Gain
TDA20404/13
Figure 7 : Quiescent Drain Current versus
Supply Voltage
Figure 8 : Open Loop Gain versus Frequency
Figure 9 : Power Dissipation versus Output
Power
TDA20405/13
