This part is a kind of semiconductor called TDA2005.

Function of this product has 20W BRIDGE AMPLIFIER FOR CAR RADIO.

Manufacturers : ST Microelectronics

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TDA2005 20 W bridge/stereo amplifier for car radio Datasheet  production data Features ■ High output power: – Po = 10 + 10 W @ RL = 2 , THD = 10 % – Po = 20 W @ RL = 4 , THD = 10 %. ■ Protection against: – Output DC and AC short circuit to ground – Overrating chip temperature – Load dump voltage surge – Fortuitous open ground – Very inductive loads ■ Loudspeaker protection during short circuit for one wire to ground Description The TDA2005 is a class B dual audio power amplifier in Multiwatt11 package specifically designed for car radio applications. Multiwatt11 Power booster amplifiers can be easily designed using this device that provides a high current capability (up to 3.5 A) and can drive very low impedance loads (down to 1.6  in stereo applicati [ ... ]

TDA2005 PDF Datasheet Download