BD27400GUL Datasheet (ROHM) - Filter-Less Class-D Monaural Speaker Amplifier

BD27400GUL, Filter-Less Class-D Monaural Speaker Amplifier

BD27400GUL is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others.

The LC filter of the speaker output is unnecessary and the external part can compose a speaker amplifier at three.

Because the efficiency is high and

BD27400GUL Features

* High output power 2.5W typ.(VDD=5V, RL=4Ω, THD+N=10%, BTL）

* Very small package 9-Pin WL-CSP

* Gain selectable by external resistor

* LC Filter less

* Protection circuitry (Short protection, Thermal shutdown, Under voltage lockout)

* Analogue differential input / PWM digita