- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358866 > LM4804 (National Semiconductor Corporation) Low Voltage High Power Audio Power Amplifier PDF資料下載
參數(shù)資料
| 型號(hào)： | LM4804 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Low Voltage High Power Audio Power Amplifier |
| 中文描述： | 高功率低電壓音頻功率放大器 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 820K |
| 代理商： | LM4804 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
Application Information
(Continued)
GATED OSCILLATOR CONTROL SCHEME
The on/off regulation mode of the LM4804, along with its
ultra-low quiescent current, results in good efficiency over a
very wide load range. The internal oscillator frequency can
be programmed using an external resistor to be constant or
vary with the battery voltage. Adding a capacitor to program
the frequency allows the designer to adjust the duty cycle
and optimize it for the application. Adding a resistor in addi-
tion to the capacitor allows the duty cycle to dynamically
compensate for changes to the input/output voltage ratio.
We call this a Ratio Adaptive Gated Oscillator circuit. Using
the correct RC components to adjust the oscillator allows the
part to run with low ripple and high efficiency over a wide
range of loads and input/output voltages.
201167C0
FIGURE 2. Functional Diagram of the LM4804’s Regulator
201167C1
FIGURE 3. Typical Step-Up Regulator Waveforms
L
www.national.com
10
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4804LQ | Low Voltage High Power Audio Power Amplifier |
| LM4817 | Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:85; Connector Shell Size:40; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| LM4849 | Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux |
| LM4849MH | Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux |
| LM4852 | Integrated Audio Amplifier System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4804LQ | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4804LQ/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4804LQX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4804LQX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4805 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3V, 1W Boosted Boomer |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。