Datasheet
Table Of Contents
- Table 1. Device summary
- 1 Schematic and pins connection diagrams
- 2 Electrical specifications
- 2.1 Absolute maximum ratings
- 2.2 Thermal data
- 2.3 Bridge amplifier section
- 2.4 Stereo amplifier application
- Figure 9. Typical stereo application circuit
- 2.4.1 Electrical characteristics (stereo application)
- Table 7. Electrical characteristics (stereo application)
- Figure 10. Quiescent output voltage vs. supply voltage (stereo amplifier)
- Figure 11. Quiescent drain current vs. supply voltage (stereo amplifier)
- Figure 12. Distortion vs. output power (stereo amplifier)
- Figure 13. Output power vs. supply voltage, RL = 2 and 4 W (stereo amplifier)
- Figure 14. Output power vs. supply voltage, RL = 1.6 and 3.2 W (stereo amplifier)
- Figure 15. Distortion vs. frequency, RL = 2 and 4 W (stereo amplifier)
- Figure 16. Distortion vs. frequency, RL = 1.6 and 3.2 W (stereo amplifier)
- Figure 17. Supply voltage rejection vs. C3 (stereo amplifier)
- Figure 18. Supply voltage rejection vs. frequency (stereo amplifier)
- Figure 19. Supply voltage rejection vs. C2 and C3, GV = 390/1 W (stereo amplifier)
- Figure 20. Supply voltage rejection vs. C2 and C3, GV = 1000/10 W (stereo amplifier)
- Figure 21. Gain vs. input sensitivity RL = 4 W (stereo amplifier)
- Figure 22. Gain vs. input sensitivity RL = 2 W (stereo amplifier)
- Figure 23. Total power dissipation and efficiency vs. output power (bridge)
- Figure 24. Total power dissipation and efficiency vs. output power (stereo)
- 3 Application suggestion
- 4 Application information
- Figure 25. Bridge amplifier without boostrap
- Figure 26. PC board and components layout of Figure 25
- Figure 27. Low cost bridge amplifier (GV = 42 dB)
- Figure 28. PC board and components layout of Figure 27
- Figure 29. 10 + 10 W stereo amplifier with tone balance and loudness control
- Figure 30. Tone control response (circuit of Figure 29)
- Figure 31. 20 W bus amplifier
- Figure 32. Simple 20 W two way amplifier (FC = 2 kHz)
- Figure 33. Bridge amplifier circuit suited for low-gain applications (GV = 34 dB)
- Figure 34. Example of muting circuit
- 4.1 Built-in protection systems
- 5 Package information
- 6 Revision history
Application information TDA2005
20/25 Doc ID 1451 Rev 6
Figure 33. Bridge amplifier circuit suited for low-gain applications (G
V
= 34 dB)
Figure 34. Example of muting circuit
4.1 Built-in protection systems
4.1.1 Load dump voltage surge
The TDA2005 has a circuit which enables it to withstand voltage pulse train, on Pin 9, of the
type shown in Figure 36. If the supply voltage peaks to more than 40 V, then an LC filter
must be inserted between the supply and pin 9, in order to assure that the pulses at pin 9
will be held within the limits shown.
A suggested LC network is shown in Figure 35. With this network, a train of pulses with
amplitude up to 120 V and width of 2 ms can be applied at point A. This type of protection is
ON when the supply voltage (pulse or DC) exceeds 18 V. For this reason the maximum
operating supply voltage is 18 V.
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