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LM4876

ACTIVE

1.1-W, mono, analog input Class-AB audio amplifier with logic-low shutdown

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Data sheet

LM4876

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 Load (min) (Ω) 8 Output power (W) 2.3 THD + N at 1 kHz (%) 0.25 Iq (typ) (mA) 6.5 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 PSRR (dB) 65 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 Load (min) (Ω) 8 Output power (W) 2.3 THD + N at 1 kHz (%) 0.25 Iq (typ) (mA) 6.5 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 PSRR (dB) 65 Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Does Not Require Output Coupling Capacitors, Bootstrap Capacitors, Or Snubber Circuits
  • 10-pin VSSOP and 8-pin SOIC Packages
  • Unity-Gain Stable
  • External Gain Set

Key Specifications

  • THD+N at 1kHz for 1W Continuous Average Output Power into 8Ω 0.5% (max)
  • Output Power At 1kHz Into 8Ω with 10% THD+N 1.5 W (typ)
  • Shutdown Current 0.01µA (typ)
  • Supply Voltage Range 2.0V to 5.5 V

All trademarks are the property of their respective owners.

  • Does Not Require Output Coupling Capacitors, Bootstrap Capacitors, Or Snubber Circuits
  • 10-pin VSSOP and 8-pin SOIC Packages
  • Unity-Gain Stable
  • External Gain Set

Key Specifications

  • THD+N at 1kHz for 1W Continuous Average Output Power into 8Ω 0.5% (max)
  • Output Power At 1kHz Into 8Ω with 10% THD+N 1.5 W (typ)
  • Shutdown Current 0.01µA (typ)
  • Supply Voltage Range 2.0V to 5.5 V

All trademarks are the property of their respective owners.

The LM4876 is a single 5V supply bridge-connected audio power amplifier capable of delivering 1.1W (typ) of continuous average power to an 8Ω load with 0.5% THD+N.

Like other audio amplifiers in the Boomer series, the LM4876 is designed specifically to provide high quality output power with a minimal amount of external components. The LM4876 does not require output coupling capacitors, bootstrap capacitors, or snubber networks. It is perfectly suited for low-power portable systems.

The LM4876 features an active low externally controlled, micro-power shutdown mode. Additionally, the LM4876 features an internal thermal shutdown protection mechanism. For PCB space efficiency, the LM4876 is available in VSSOP and SOIC surface mount packages.

The unity-gain stable LM4876's closed loop gain is set using external resistors.

The LM4876 is a single 5V supply bridge-connected audio power amplifier capable of delivering 1.1W (typ) of continuous average power to an 8Ω load with 0.5% THD+N.

Like other audio amplifiers in the Boomer series, the LM4876 is designed specifically to provide high quality output power with a minimal amount of external components. The LM4876 does not require output coupling capacitors, bootstrap capacitors, or snubber networks. It is perfectly suited for low-power portable systems.

The LM4876 features an active low externally controlled, micro-power shutdown mode. Additionally, the LM4876 features an internal thermal shutdown protection mechanism. For PCB space efficiency, the LM4876 is available in VSSOP and SOIC surface mount packages.

The unity-gain stable LM4876's closed loop gain is set using external resistors.
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* Data sheet LM4876 1.1W Audio Power Amplifier with Logic Low Shutdown datasheet (Rev. E) 02 May 2013

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SOIC (D) 8 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
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