LM4876 Datasheet | Texas Instruments

FEATURES - 2 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 APPLICATIONS - Mobile Phones - Portable puters - Desktop puters - Low-Voltage Audio Systems KEY SPECIFICATIONS - THD+N at 1k Hz for 1W Continuous Average Output Power into 8Ω 0.5% (max) - Output Power At 1k Hz Into 8Ω with 10% THD+N 1.5 W (typ) - Shutdown Current 0.01µA (typ) - Supply Voltage Range 2.0V to 5.5 V DESCRIPTION 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 ponents. 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. Typical Application Figure 1. Typical LM4876 Audio Amplifier Application Circuit Numbers in ( ) are specific to the 10-pin VSSOP package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Cop...