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LM4940 Datasheet 6W Stereo Audio Power Amplifier

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM4940 6W Stereo Audio Power Amplifier October 2003 LM4940 6W Stereo Audio Power.

General Description

The LM4940 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV’s.

It is capable of delivering 6 watts per channel to a 4Ω load with less than 10% THD+N while operating on a 14.4VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.

Key Features

  • a low-power consumption active-low shutdown mode. Additionally, the LM4940 features an internal thermal shutdown protection mechanism along with short circuit protection. The LM4940 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM4940 is a unity-gain stable and can be configured by external gain-setting resistors. Key Specifications j Quiscent Power Supply Current j POUT (SE) 40mA (max) 6W (typ) 40µA (typ.