TDA2004R Application suggestion
Doc ID 17614 Rev 2 13/17
Figure 19. Suggested LC network circuit
Figure 20. Voltage gain bridge configuration
3.1.2 Short circuit (AC condition)
The TDA2004R can withstand a permanent short-circuit from the output to ground caused
by a wrong connection during normal working.
3.1.3 Polarity inversion
High current (up to 10 A) can be handled by the device with no damage for a longer period
than the blow-out time of a quick 2 A fuse (normally connected in series with the supply).
This feature is added to avoid destruction, if during fitting to the car, a mistake on the
connection of the supply is made.
3.1.4 Open ground
When the ratio is in the ON condition and the ground is accidentally opened, a standard
audio amplifier will be damaged. On the TDA2004R protection diodes are included to avoid
any damage.
3.1.5 Inductive load
A protection diode is provided to allow use of the TDA2004R with inductive loads.
3.1.6 DC voltage
The maximum operating DC voltage for the TDA2004R is 18 V. However the device can
withstand a DC voltage up to 28 V with no damage. This could occur during winter if two
batteries are series connected to crank the engine.
FROM
SUPPLY
LINE
L = 2mH
A
C
TO PIN
3000 µF
16V
V
s
(V)
40
t1
t1 = 50ms
t2 = 1000ms
t2
t
14.4
