Friday, September 5, 2014
2×22W Stereo Car Audio Amplifier schematic diagram
This is a schematic diagram of stereo audio amplifier for your car. The schema is powered by a single IC TDA1553 with some external components, this IC will handle your stereo car audio system.
The TDA1553CQ is a monolithic integrated class-B output amplifier in a 13-lead plastic DIL-bent-SIL power package. It contains 2×22 W amplifiers in BTL configuration. The device is primarily developed for car radio applications.
The TDA1553CQ contains two identical amplifiers with differential input stages and can be used for bridge applications. The gain of each amplifier is fixed at 26 dB.
Special features of the device are:
· standby: low supply current (<100> Loudspeaker protection
When a short-schema to ground occurs, which forces a DC voltage across the loudspeaker of >= V, a built-in protection schema becomes active and limits the DC voltage across the loudspeaker to <= v. pin 12 detects the status of the protection
Short-schema protection
If any output is short-schemaed to ground during the standby mode, it becomes impossible to switch the schema to the mute or operating condition. In this event the supply current will be limited to a few milliamps.
Download the TDA1553CQ datasheet
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