BD783 High-Power Speaker Amp ICs ROHM Semiconductor BD783 High-Power Speaker Amp ICs are Class-AB monaural speaker amplifiers designed for automotive applications. The BD783 series includes 6dB to 26dB voltage gain products. Class-AB amplifiers have no requirements for EMI noise. High-output power is achieved by adopting the HTSOP-J8 power package. Its low quiescent current can reduce battery consumption. The shutdown current is very low (0.1μA typ.), and the pop noise level when switching to shutdown is very small. The device is ideal for applications where mode changes often between 'shutdown state' and 'active state.'