參數資料
型號: LME49811TB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: LME49811 Audio Power Amplifier Series High Fidelity 200 Volt Power Amplifier Input Stage with Shutdown; Package: TO-247 SINGLE GAUGE; No of Pins: 15
中文描述: 1 CHANNEL, AUDIO AMPLIFIER, ZFM15
封裝: TO-247, 15 PIN
文件頁數: 1/18頁
文件大小: 662K
代理商: LME49811TB
LME49811
Audio Power Amplifier Series
November 11, 2009
High Fidelity 200 Volt Power Amplifier Input Stage with
Shutdown
General Description
The LME49811 is a high fidelity audio power amplifier input
stage designed for demanding consumer and pro-audio ap-
plications. Amplifier output power may be scaled by changing
the supply voltage and number of output devices. The
LME49811 is capable of driving an output stage to deliver in
excess of 500 watts single-ended into an 8 ohm load in the
presence of 10% high line headroom and 20% supply regu-
lation.
The LME49811 includes thermal shut down circuitry that ac-
tivates when the die temperature exceeds 150°C. The
LME49811's shutdown function when activated, forces the
LME49811 into shutdown state.
Key Specifications
Wide operating voltage range
±20V to ±100V
PSRR (f = DC)
115dB (typ)
THD+N (f = 1kHz)
0.00035% (typ)
Output Drive Current
9mA
Features
Very high voltage operation
Scalable output power
Minimum external components
External compensation
Thermal Shutdown
Applications
Powered subwoofers
Pro audio
Powered studio monitors
Audio video receivers
Guitar Amplifiers
High voltage industrial applications
Typical Application
30004862
FIGURE 1. Typical Audio Amplifier Application Circuit
Overture
is a registered trademark of National Semiconductor Corporation.
2009 National Semiconductor Corporation
300048
www.national.com
LME49811
High
Fidelity
200
Volt
Power
Amplifier
Input
Stage
with
Shutdown
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相關代理商/技術參數
參數描述
LME49811TB/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LME49811TB/NOPB 制造商:Texas Instruments 功能描述:Power Amplifier
LME49830 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Mono High Fidelity 200 Volt MOSFET Power Amplifier Input Stage with Mute
LME49830TB 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono Class-AB 15-Pin(15+Tab) TO-247 Rail
LME49830TB/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel