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LM4950

Texas Instruments
Part Number LM4950
Manufacturer Texas Instruments
Published May 19, 2023
Description 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier
Detailed Description LM4950 www.ti.com SNAS174E – JULY 2003 – REVISED MAY 2013 LM4950 Boomer ™ Audio Power Amplifier Series 7.5W Mono-BTL ...
Datasheet PDF File LM4950 PDF File

LM4950
LM4950


Overview
LM4950 www.
ti.
com SNAS174E – JULY 2003 – REVISED MAY 2013 LM4950 Boomer ™ Audio Power Amplifier Series 7.
5W Mono-BTL or 3.
1W Stereo Audio Power Amplifier Check for Samples: LM4950 FEATURES 1 •23 Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions • Low Current, Active-Low Shutdown Mode • Low Quiescent Current • Stereo 3.
1W Output, RL = 4Ω • Mono 7.
5W BTL Output, RL = 8Ω • Short Circuit Protection • Unity-Gain Stable • External Gain Configuration Capability KEY SPECIFICATIONS • Quiescent Power Supply Current 16mA (typ) • POUT (SE) – VDD = 12V, RL = 4Ω, 1% THD+N: 3.
1W (typ) • POUT (BTL) – VDD = 12V, RL = 8Ω, 10% THD+N: 7.
5W (typ) • Shutdown Current 40μA (typ) APPLICATIONS • Flat Panel Monitors • Flat Panel TVs • Computer Sound Cards DESCRIPTION The LM4950 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's.
It is capable of delivering 3.
1 watts per channel to a 4Ω single-ended load with less than 1% THD+N or 7.
5 watts mono BTL to an 8Ω load, with less than 10% THD+N from a 12VDC power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components.
The LM4950 does not require bootstrap capacitors or snubber circuits.
Therefore, it is ideally suited for display applications requiring high power and minimal size.
The LM4950 features a low-power consumption active-low shutdown mode.
Additionally, the LM4950 features an internal thermal shutdown protection mechanism along with short circuit protection.
The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.
The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors.
1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and dis...


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