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LM4864

ACTIVE

725-mW, mono, analog input, Class-AB audio amplifier

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Data sheet

LM4864

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 4 Output power (W) 0.85 THD + N at 1 kHz (%) 0.7 Iq (typ) (mA) 3.6 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 50 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 4 Output power (W) 0.85 THD + N at 1 kHz (%) 0.7 Iq (typ) (mA) 3.6 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 50 Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • VSSOP, SOIC, PDIP, and WSON Packaging
  • No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary
  • Thermal Shutdown Protection Circuitry
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • PO at 1% THD+N with VDD = 5V, 1kHz
    • LM4864LD, 4Ω load 625 mW (typ)
    • LM4864LD, 8Ω load 725 mW (typ)
    • LM4864M & LM4864N, 8Ω load 675 mW (typ)
    • LM4864MM, 8Ω load 300 mW (typ)
    • LM4864, 16Ω load 550 mW (typ)
    • Shutdown current 0.7 µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

  • VSSOP, SOIC, PDIP, and WSON Packaging
  • No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary
  • Thermal Shutdown Protection Circuitry
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • PO at 1% THD+N with VDD = 5V, 1kHz
    • LM4864LD, 4Ω load 625 mW (typ)
    • LM4864LD, 8Ω load 725 mW (typ)
    • LM4864M & LM4864N, 8Ω load 675 mW (typ)
    • LM4864MM, 8Ω load 300 mW (typ)
    • LM4864, 16Ω load 550 mW (typ)
    • Shutdown current 0.7 µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

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.

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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* Data sheet LM4864 725mW Audio Power Amplifier with Shutdown Mode datasheet (Rev. F) 02 May 2013

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