TDA2005R STMicroelectronics, TDA2005R Datasheet - Page 21
Manufacturer Part Number
IC AMP AUD 20W CLASS B DUAL
Specifications of TDA2005R
1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power X Channels @ Load
22W x 1 @ 3.2 Ohm; 12W x 2 @ 2 Ohm
Voltage - Supply
8 V ~ 18 V
Short-Circuit and Thermal Protection
Package / Case
Multiwatt-11 (Vertical, Bent and Staggered Leads)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 35. Suggested LC network circuit
Figure 36. Voltage gain bridge configuration
Short circuit (AC and DC conditions)
The TDA2005 can withstand a permanent short-circuit on the output for a supply voltage up
to 16 V.
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.
When the ratio is in the ON condition and the ground is accidentally opened, a standard
audio amplifier will be damaged. On the TDA2005 protection diodes are included to avoid
A protection diode is provided to allow use of the TDA2005 with inductive loads.
The maximum operating DC voltage for the TDA2005 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.
Doc ID 1451 Rev 4