LV49821VH

 Audio Power Amplifier, Class AB, 2-Channel, 1.4 W, BTL

制造商:ON

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产品信息

The LV49821VH incorporates a 2-channel power circuit amplifier capable of low-voltage operation (2.7V and up). It has a function for switching the headphone driver and also has a standby function to reduce the current drain. It is a power amplifier IC optimal for driving the speakers used in portable equipment and low power output equipment.
  • 2-cannels BTL power amplifier built-in :
  • Standard output power = 1.4W (VCC = 5V, RL = 8Ω, THD = 10%)
  • Output coupling capacitor is unnecessary because of differential output type.
  • Standby function built-in :
  • Standard standby current = 0.01µA (VCC = 5V)
  • Second amplifier stop control function built-in :
  • Headphone driver switch (for BTL/SE switch)
  • Audio mute (Only BTL power amplifier path)
  • Supports beep signal input
  • Thermal protection circuit built-in
  • Operation at low voltage possible :
  • VCC = 2.7V to 5.5V
  • Gain setting possible :
  • BTL voltage gain = 0 to 26dB

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应用案例