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LM4950TS bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LM4950TS bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 30 page 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 1 FEATURES DESCRIPTION The LM4950 is a dual audio power amplifier primarily 23 • Pop & Click Circuitry Eliminates Noise During designed for demanding applications in flat panel Turn-On and Turn-Off Transitions monitors and TV's. It is capable of delivering 3.1 • Low Current, Active-Low Shutdown Mode watts per channel to a 4 Ω single-ended load with less • Low Quiescent Current than 1% THD+N or 7.5 watts mono BTL to an 8 Ω load, with less than 10% THD+N from a 12VDC power • Stereo 3.1W Output, RL = 4Ω supply. • Mono 7.5W BTL Output, RL = 8Ω Boomer audio power amplifiers were designed • Short Circuit Protection specifically to provide high quality output power with a • Unity-Gain Stable minimal amount of external components. The • External Gain Configuration Capability LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal KEY SPECIFICATIONS size. • Quiescent Power Supply Current 16mA (typ) The LM4950 features a low-power consumption • POUT (SE) active-low shutdown mode. Additionally, the LM4950 – VDD = 12V, RL = 4Ω, 1% THD+N: 3.1W (typ) features an internal thermal shutdown protection • POUT (BTL) mechanism along with short circuit protection. – VDD = 12V, RL = 8Ω, 10% THD+N: 7.5W (typ) The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur • Shutdown Current 40 μA (typ) during turn-on and turn-off transitions. APPLICATIONS The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors. • Flat Panel Monitors • Flat Panel TVs • Computer Sound Cards 1 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. 2 is a trademark of ~ Texas Instruments Incorporated. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2003–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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