GENERAL DESCRIPTION

SC2380 is a Class D stereo audio amplifier which can deliver continuous 2*5.0W output power into a 4Ω speaker with 4.2V battery supply when THD+N

= 10%. The class D audio amplifier’s power supply is adaptively boosted by the integrated charge pump regulator which only works while the output power is big enough. This will significantly extend the playing time in battery supply applications.

SC2380 features Non-Clip output control Function which detects output signal clip due to the over input signal and suppresses the output signal clip automatically. Also, it can adapt the output clip caused by power supply voltage down. It can significantly improve the sound quality, creating a very comfortable musical enjoyment, and to protect the speakers from overload damage. It provides 4 different NCN modes and NCN OFF mode to adjust different applications.

Class AB amplifier mode is also available for SC2380. Once the EMI Interference from class D and Boost Converter becomes an annoying problem, SC 2380 can be changed into Class AB mode.

SC2380 has a filter-less modulation circuit which directly drives speakers while realizes low distortion and low noise characteristics. Thanks to filter-less, circuit design with fewer external parts can be made in portable applications.

SC2380 has an internal gain of 28dB and an independent Shutdown function which can minimize the power consumption. As for protection function, over current protection function for speaker output terminals, over temperature protection function, and low supply voltage malfunction preventing function are also prepared.

FEATURE

・4 modes of Non-Clip output control Function ・Adaptive Charge Pump Regulator

・Maximum Voltage Gain: 28dB ・Output Power

2*5.0W (VBAT=3.7V, RL=4Ω, THD+N=10%) ・Efficiency

85% (VBAT = 3.7V, RL = 4 Ω, Po = 0.5W)

・Power Supply

-Input VBAT：2.7V to 5.5V

-Output CPOUT：6.5V

・Quiescent Current: <10mA

・Shutdown Current: <1uA

・Class AB / Class D selectable

・Filter-less Modulation, Eliminating Output Filter ・Over Current Protection, Thermal Protection,

Low voltage malfunction prevention function included

・Pb-Free Packages , ETSSOP2 4

APPLICATIONS

・Smart Speakers ・Wireless Speakers

・Portable Audio Devices ・Smart Phones

TYPICAL APPLICATION