Analog Input Monaural Class-D Speaker Amplifiers - BD5638NUX

BD5638NUX 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 only 3 external components are needed by fixed gain 18dB. 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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
número de peça
Estado de Condição
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
BD5638NUX-TR Active VSON008X2030 4000 4000 Taping sim
Vcc(Min.)[V] 2.5
Vcc(Max.)[V] 5.5
Iq[mA] 2.7
Ext. Gain No
Maximum Output Gain[dB] 18.0
Speaker Amp Outputs 1.0
Speaker Amp THD+N[%] 0.1
Speaker Amp SNR[dB] -98.0
Speaker Amp PSRR[dB] 53.0
Speaker Amp Input Type Differential Single
Speaker Amp Type Class D
Speaker Amp Output Power(Max.)[W] 2.5
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・ No LC filter required
    ・ Only 3 external components
    ・ High power 2.5W / 4Ω / BTL (VDD=5V, RL=4Ω, THD+N=10%)
    ・ High power 0.85W / 8Ω / BTL (VDD=3.6V, RL=8Ω, THD+N=10%)
    ・ Gain 18dB
    ・ Analog differential input / PWM digital output
    ・ Pop noise suppression circuit
    ・ Built-in standby function
    ・ Protection circuit (Short protection [Auto recover without power cycling], Thermal shutdown, Under voltage lockout)
    ・ Small package 8pin VSON
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Dados técnicos
Application Note

BD5638NUX Evaluation Board Information

Application Note

Thermal Resistance