The LM4864 is a bridged audio power amplifier capable of delivering 725mW of continuous average power into an 8Ω load with 1% THD+N from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power from a low supply voltage while requiring a minimal amount of external components. Since the LM4864 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications.
The LM4864 features an externally controlled, low power consumption shutdown mode, and thermal shutdown protection.
The closed loop response of the unity-gain stable LM4864 can be configured by external gain-setting resistors. The device is available in multiple package types to suit various applications.
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|Part number||Order||Audio input type||Architecture||Speaker channels (Max)||Power stage supply (Min) (V)||Power stage supply (Max) (V)||Output power (W)||Load (Min) (ohms)||THD + N @ 1 kHz (%)||Iq (Typ) (mA)||Control interface||Closed/open loop||Analog supply (Min) (V)||Analog supply (Max) (V)||PSRR (dB)||Operating temperature range (C)||Rating|
||Analog Input||Class-AB||Mono||2.7||5.5||0.85||4||0.7||3.6||Hardware||Open||2.7||5.5||50||-40 to 85||Catalog|