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LM4860

ACTIVE

1-W, mono, analog input Class-AB audio amplifier with headphone sense

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Data sheet

LM4860

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) 8 Output power (W) 1.3 THD + N at 1 kHz (%) 0.72 Iq (typ) (mA) 7 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 65 Operating temperature range (°C) -20 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) 8 Output power (W) 1.3 THD + N at 1 kHz (%) 0.72 Iq (typ) (mA) 7 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 65 Operating temperature range (°C) -20 to 85
SOIC (D) 16 59.4 mm² 9.9 x 6
  • No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary
  • Small Outline (SO) Packaging
  • Compatible with PC Power Supplies
  • Thermal Shutdown Protection Circuitry
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • Two Headphone Control Inputs and Headphone Sensing Output

Key Specifications

  • THD+N at 1W Continuous Average
  • Output Power into 8Ω: 1% (Max)
  • Instantaneous Peak Output Power:  > 2 W
  • Shutdown Current:  0.6 μA (typ)

All trademarks are the property of their respective owners.

  • No Output Coupling Capacitors, Bootstrap Capacitors, or Snubber Circuits are Necessary
  • Small Outline (SO) Packaging
  • Compatible with PC Power Supplies
  • Thermal Shutdown Protection Circuitry
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • Two Headphone Control Inputs and Headphone Sensing Output

Key Specifications

  • THD+N at 1W Continuous Average
  • Output Power into 8Ω: 1% (Max)
  • Instantaneous Peak Output Power:  > 2 W
  • Shutdown Current:  0.6 μA (typ)

All trademarks are the property of their respective owners.

The LM4860 is a bridge-connected audio power amplifier capable of delivering 1W of continuous average power to an 8Ω load with less than 1% THD+N over the audio spectrum from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4860 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4860 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. It also includes two headphone control inputs and a headphone sense output for external monitoring.

The unity-gain stable LM4860 can be configured by external gain setting resistors for differential gains of up to 10 without the use of external compensation components. Higher gains may be achieved with suitable compensation.

The LM4860 is a bridge-connected audio power amplifier capable of delivering 1W of continuous average power to an 8Ω load with less than 1% THD+N over the audio spectrum from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4860 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4860 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. It also includes two headphone control inputs and a headphone sense output for external monitoring.

The unity-gain stable LM4860 can be configured by external gain setting resistors for differential gains of up to 10 without the use of external compensation components. Higher gains may be achieved with suitable compensation.
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* Data sheet LM4860   Series 1W Audio Power Amplifier with Shutdown Mode datasheet (Rev. C) 02 May 2013
Application note Audio Amplifier Drives Thermoelectric Cooler For OC-48 Laser Module 06 Mar 2003

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