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TDA2030 Schematic ( PDF Datasheet ) - ST Microelectronics

Teilenummer TDA2030
Beschreibung 14W Hi-Fi AUDIO AMPLIFIER
Hersteller ST Microelectronics
Logo ST Microelectronics Logo 




Gesamt 17 Seiten
TDA2030 Datasheet, Funktion
TDA2030
14 W hi-fi audio amplifier
Features
Wide-range supply voltage, up to 36 V
Single or split power supply
Short-circuit protection to ground
Thermal shutdown
Description
The TDA2030 is a monolithic integrated circuit in
the Pentawatt® package, intended for use as a
low frequency class-AB amplifier. Typically it
provides 14 W output power (d = 0.5%) at
14 V/4 Ω. At ±14 V or 28 V, the guaranteed output
power is 12 W on a 4 Ω load and 8 W on an 8 Ω
(DIN45500).
The TDA2030 provides high output current and
has very low harmonic and crossover distortion.
Furthermore, the device incorporates an original
(and patented) short-circuit protection system
comprising an arrangement for automatically
limiting the dissipated power so as to keep the
operating point of the output transistors within
their safe operating range. A conventional thermal
shutdown system is also included.
Figure 1. Ex: Functional block diagram
Pentawatt (horizontal)
Table 1. Device summary
Order code
Package
TDA2030H
Pentawatt horizontal
June 2011
Doc ID 1458 Rev 3
1/17
www.st.com
17






TDA2030 Datasheet, Funktion
Electrical specifications
Figure 8. Distortion vs. output power
TDA2030
Figure 9. Distortion vs. frequency
Figure 10. Distortion vs. frequency
Figure 11.
Frequency response with different
values of the rolloff capacitor C8
(see typical amplifier with split
power supply)
6/17 Doc ID 1458 Rev 3

6 Page









TDA2030 pdf, datenblatt
Short-circuit protection
5 Short-circuit protection
TDA2030
The TDA2030 has an original circuit which limits the current of the output transistors.
Figure 21 shows that the maximum output current is a function of the collector emitter
voltage; hence the output transistors work within their safe operating area (Figure 5).
This function can therefore be considered as being peak power limiting rather than simple
current limiting.
It reduces the possibility that the device gets damaged during an accidental short-circuit
from AC output to ground.
Figure 21. Maximum output current vs.
Figure 22. Safe operating area and collector
voltage [VCEsat] across each output
transistor
characteristics of the protected
power transistor
12/17
Doc ID 1458 Rev 3

12 Page





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