LM1876 Power Amplifier Circuit

Published:2011/7/15 20:23:00 Author:Robert | Keyword: Power, Amplifier | From:SeekIC

The picture shows the LM1876 power amplifier circuit. Maintenance points: (1)This IC uses +/-22V power supply. The 22V should input to pin 2 and pin 15 and the -22V should input to pin 4. The pic 5 and pin 10 should be connected to the ground. (2)This IC uses OCL output circuit and the output port's middle point's voltage is 0V. When this circuit needs maintenance it should be noticed to avoid to damage the speaker or IC. (3)When the IC's external circuit needs maintenance it should use a dummy load for discharging and then do the measurement on the circuit. Otherwise it may cause unnecessary damage.



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