Analog Input Stereo Class-D Speaker Amplifiers - BD5471MUV

BD5471MUV is a low voltage drive class-D stereo speaker amplifier that was developed for cellular telephones, mobile audio products and the others. LC filters of speaker outputs are unnecessary, and only 7 external components are needed for speaker system. Also, 3.3V regulator in BD5471MUV can use power supply for audio-codec. Efficiency of BD5471MUV is higher than class-AB amplifier, and BD5471MUV can make battery life longer than class-AB. Shutdown current is 0uA typically. Also, start-up time is fast from shutdown to active mode. BD5471MUV can use for some applications that change mode between "shutdown state" and "active state".

Please contact us for purchase because there is no distribution Inventory.--- inquérito
* 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
BD5471MUV-E2 Active VQFN024V4040 2500 2500 Taping sim
Vcc(Min.)[V] 4.5
Vcc(Max.)[V] 5.5
Iq[mA] 5.5
Ext. Gain No
Maximum Output Gain[dB] 24.0
Speaker Amp Outputs 2.0
Speaker Amp THD+N[%] 0.2
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] 2.3
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・High power 2.3W (VDD=5V, RL=4Ω, THD+N=10%)
    ・High power 1.5W (VDD=5V, RL=8Ω, THD+N=10%)
    ・Gain selectable by the external control (6, 12, 18, 24dB)
    ・Pop noise suppression circuitry
    ・Standby function (Mute function) [ISD=0uA]
    ・Protection circuitry (Short protection [Audio, REG], Thermal shutdown, Under voltage lockout)
    ・Built-in 3.3V regulator
    ・Built-in BEEP detect circuitry
    ・Very small package VQFN024V4040
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Application Note

BD5471MUV Evaluation Board Information

Application Note

Thermal Resistance