- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄358866 > LM4802BLQ (NATIONAL SEMICONDUCTOR CORP) Audio Power Amplifier with Boost Converter to Drive Ceramic Speakers PDF資料下載
參數(shù)資料
| 型號(hào)： | LM4802BLQ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Audio Power Amplifier with Boost Converter to Drive Ceramic Speakers |
| 中文描述： | 1 CHANNEL, AUDIO AMPLIFIER, QCC28 |
| 封裝： | LLP-28 |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大?。?/td> | 1224K |
| 代理商： | LM4802BLQ |
當(dāng)前第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)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)第17頁(yè)
LM4802B
Audio Power Amplifier with Boost Converter to Drive
Ceramic Speakers
General Description
The LM4802B integrates a Boost Converter with an Audio
Power Amplifier to drive Ceramic Speakers in portable ap-
plications. When powered by a 3V supply, it is capable of
forcing 12Vp-p across a 2μF + 30
bridge-tied-load (BTL)
with less than 1% THD+N.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4802B does not require boot-
strap capacitors, or snubber circuits. Therefore it is ideally
suited for portable applications requiring high output voltage
and minimal size.
The LM4802B features a low-power consumption shutdown
mode. Additionally, the LM4802B features an internal ther-
mal shutdown protection mechanism.
The LM4802B contains advanced pop & click circuitry that
eliminates noises which would otherwise occur during
turn-on and turn-off transitions.
The LM4802B is unity-gain stable. Its gain is set by external
resistors.
Key Specifications
j
Quiescent Power Supply Current
j
BTL Voltage Swing
(2μF + 30
load, 1% THD+N,
V
DD
= 3V)
j
Shutdown Current
12mA (typ)
12Vp-p (typ)
2μA (max)
Features
n
Pop & click circuitry eliminates noise during turn-on and
turn-off transitions
n
Low, 2μA (max) shutdown current
n
Low, 12mA (typ) quiescent current
n
12Vp-p mono BTL output, load = 2μF + 30
, V
DD
= 3V
n
Short circuit protection
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Cellphone
n
PDA
Connection Diagram
LM4802BLQ (5x5)
20094184
Top View
Order Number LM4802BLQ
See NS Package Number 2LQAQ028
Boomer
is a registered trademark of National Semiconductor Corporation.
November 2004
A
2004 National Semiconductor Corporation
DS200941
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4804 | Low Voltage High Power Audio Power Amplifier |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4802BLQ/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 |
| LM4802BLQBD | 功能描述:音頻 IC 開(kāi)發(fā)工具 LM4802BLQ EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4802BLQBD/NOPB | 制造商:Texas Instruments 功能描述:Evaluation Kit For Audio Power Amplifier With Boost Converter To Drive Ceramic Speakers |
| LM4802BLQX | 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 |
| LM4802BLQX/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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。