BD27400GUL

Datasheet Small-sized Class-D Speaker Amplifiers Filter-Less Class-D Monaural Speaker Amplifier BD27400GUL General Description 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 is low consumption power with the class-D operation, it is the optimal for the application of the battery drive. Also Current consumption of 0μA when standby and fast transitions from standby to active with little pop noise make it is suitable for applications that switch repeatedly between suspended and active. Key Specifications  Operating voltage Range:  Circuit current(No signal):  Circuit current(Stand by):  Output Power(RL=8Ω):  Output Power(RL=4Ω):  Start-up time:  Operating Temperature Range: 2.5V to 5.5V 2.9mA(Typ) 0.1μA(Typ) 0.85W(Typ) 2.5W(Typ) 3.0msec(Typ) -40°C to +85°C Package(s) VCSP50L1 W(Typ) x D(Typ) x H(Max) 1.50mm x 1.50mm x 0.55mm 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 digital output  Pop noise suppression circuitry VCSP50L1 Applications  Mobile phone, Smart phone, Digital video ca...