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TDA2040
20W Hi-Fi AUDIO POWER AMPLIFIER
DESCRIPTION
The 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 V
= 32V/4 . The TDA2040
s
provides high output current and has very low
harmonic and cross-over distortion. Further the
device incorporates a patented short circuit protec-
PENTAWATT
tion system comprising an arrangement for auto-
matically limiting the dissipated power so as to keep
ORDERING NUMBER : TDA2040V
the working point of the output transistors within
their safe operating area. A thermal shut-down
system is also included.
TEST CIRCUIT
1/13
December 1995
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Related Manuals for THOMSON TDA2040
Summary of Contents for THOMSON TDA2040
- Page 1 PENTAWATT tion system comprising an arrangement for auto- matically limiting the dissipated power so as to keep ORDERING NUMBER : TDA2040V the working point of the output transistors within their safe operating area. A thermal shut-down system is also included.
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Page 2: Schematic Diagram
TDA2040 SCHEMATIC DIAGRAM PIN CONNECTION THERMAL DATA Symbol Parameter Value Unit Thermal Resistance Junction-case Max. th j-case 2/13... -
Page 3: Absolute Maximum Ratings
Output Peak Current (internally limited) Power Dissipation at T = 75 C case Storage and Junction Temperature – 40 to + 150 ELECTRICAL CHARACTERISTICS (refer to the test circuit, V 16V, T = 25 C unless otherwise specified) Symbol Parameter Test Conditions Min. - Page 4 TDA2040 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 Figure 6 :...
- Page 5 TDA2040 Figure 7 : Quiescent Drain Current versus Figure 8 : Open Loop Gain versus Frequency Supply Voltage Figure 9 : Power Dissipation versus Output Power 5/13...
- Page 6 TDA2040 Figure 10 : Amplifier with Split Power Supply Figure 11 : P.C. Board and Components Layout for the Circuit of Figure 10 (1:1 scale) 6/13...
- Page 7 Figure 12 : Amplifier with Split Power Supply (see Note) Note : In this case of highly inductive loads protection diodes may be necessary. Figure 13 : P.C. Board and Components Layout for the Circuit of Figure 12 (1:1 scale) 7/13...
- Page 8 TDA2040 Figure 14 : 30W Bridge Amplifier with Split Power Supply Figure 15 : P.C. Board and Components Layout for the Circuit of Figure 14 (1:1 scale) 8/13...
- Page 9 TDA2040 Figure 16 : Two Way Hi-Fi System with Active Crossover Figure 17 : P.C. Board and Components Layout for the Circuit of Figure 16 (1:1 scale) 9/13...
- Page 10 Commonly, The results obtained are excellent because this is these loudspeaker systems divide the audio spec- the best type of audio filter and the only one free trum into two, three or four bands. from phase and transient distortion.
- Page 11 TDA2040 The impedance at the pin (-) is of the order of 100 , PRATICAL CONSIDERATION while that of the pin (+) is very high, which is also what was wanted. Printed Circuit Board The layout shown in Figure 11 should be adopted C1 = C2 = C3 by the designers.
- Page 12 TDA2040 PENTAWATT PACKAGE MECHANICAL DATA inch DIM. MIN. TYP. MAX. MIN. TYP. MAX. 0.189 1.37 0.054 0.094 0.110 1.35 0.047 0.053 0.35 0.55 0.014 0.022 1.05 0.031 0.041 0.039 0.055 0.126 0.134 0.142 0.260 0.268 0.276 10.4 0.409 10.05 10.4 0.396...
- Page 13 SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.