5秒后页面跳转
LM4673TM PDF预览

LM4673TM

更新时间: 2024-11-25 23:16:47
品牌 Logo 应用领域
美国国家半导体 - NSC 商用集成电路放大器功率放大器
页数 文件大小 规格书
18页 887K
描述
Filterless, 2.65W, Mono, Class D Audio Power Amplifier

LM4673TM 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA9,3X3,16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.14标称带宽:20 kHz
商用集成电路类型:AUDIO AMPLIFIER谐波失真:10%
JESD-30 代码:S-PBGA-B9JESD-609代码:e1
长度:1.405 mm湿度敏感等级:1
信道数量:1功能数量:1
端子数量:9最高工作温度:85 °C
最低工作温度:-40 °C标称输出功率:2.65 W
封装主体材料:PLASTIC/EPOXY封装代码:VFBGA
封装等效代码:BGA9,3X3,16封装形状:SQUARE
封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH峰值回流温度(摄氏度):260
电源:2.4/5.5 V认证状态:Not Qualified
座面最大高度:0.6 mm子类别:Audio/Video Amplifiers
最大压摆率:3.75 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.4 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Tin/Silver/Copper (Sn/Ag/Cu)
端子形式:BALL端子节距:0.4 mm
端子位置:BOTTOM处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.405 mmBase Number Matches:1

LM4673TM 数据手册

 浏览型号LM4673TM的Datasheet PDF文件第2页浏览型号LM4673TM的Datasheet PDF文件第3页浏览型号LM4673TM的Datasheet PDF文件第4页浏览型号LM4673TM的Datasheet PDF文件第5页浏览型号LM4673TM的Datasheet PDF文件第6页浏览型号LM4673TM的Datasheet PDF文件第7页 
December 2005  
LM4673  
Filterless, 2.65W, Mono, Class D Audio Power Amplifier  
General Description  
Key Specifications  
The LM4673 is a single supply, high efficiency, 2.65W, mono,  
Class D audio amplifier. A low noise, filterless PWM archi-  
tecture eliminates the output filter, reducing external compo-  
nent count, board area consumption, system cost, and sim-  
plifying design.  
j
Efficiency at 3.6V, 400mW into 8speaker 88% (typ)  
j
Efficiency at 3.6V, 100mW into 8speaker 80% (typ)  
j
Efficiency at 5V, 1W into 8speaker  
Quiescent current, 3.6V supply  
Total shutdown power supply current  
Single supply range  
86% (typ)  
2.1mA (typ)  
0.01µA (typ)  
2.4V to 5.5V  
78dB  
j
j
j
j
The LM4673 is designed to meet the demands of mobile  
phones and other portable communication devices. Operat-  
ing on a single 5V supply, it is capable of driving a 4Ω  
speaker load at a continuous average output of 2.1W with  
less than 1% THD+N. Its flexible power supply requirements  
allow operation from 2.4V to 5.5V.  
PSRR, f = 217Hz  
Features  
The LM4673 has high efficiency with speaker loads com-  
pared to a typical Class AB amplifier. With a 3.6V supply  
driving an 8speaker, the IC’s efficiency for a 100mW  
power level is 80%, reaching 88% at 400mW output power.  
n Mono Class D Operation  
n No output filter required for inductive loads  
n Externally configurable gain  
n Very fast turn on time: 17µs (typ)  
n Minimum external components  
n "Click and pop" suppression circuitry  
n Micro-power shutdown mode  
The LM4673 features a low-power consumption shutdown  
mode. Shutdown may be enabled by driving the Shutdown  
pin to a logic low (GND).  
The gain of the LM4673 is externally configurable which  
allows independent gain control from multiple sources by  
summing the signals. Output short circuit and thermal over-  
load protection prevent the device from damage during fault  
conditions.  
n Available in space-saving 0.4mm pitch micro SMD and  
LLPTm (Future Product) packages  
Applications  
n Mobile phones  
n PDAs  
n Portable electronic devices  
Typical Application  
201522J3  
FIGURE 1. Typical Audio Amplifier Application Circuit  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2005 National Semiconductor Corporation  
DS201522  
www.national.com  

与LM4673TM相关器件

型号 品牌 获取价格 描述 数据表
LM4673TM/NOPB TI

获取价格

2.65W 单声道、模拟输入 D 类扬声器放大器 | YFQ | 9 | -40 to 8
LM4673TMX NSC

获取价格

暂无描述
LM4673TMX/NOPB TI

获取价格

2.65W 单声道、模拟输入 D 类扬声器放大器 | YFQ | 9 | -40 to 8
LM4674 NSC

获取价格

Filterless 2.5W Stereo Class D Audio Power Amplifier
LM4674 TI

获取价格

免滤波 2.5 立体声 D 类音频功率放大器
LM4674A NSC

获取价格

Filterless 2.5W Stereo Class D Audio Power Amplifier
LM4674A TI

获取价格

免滤波 2.5 立体声 D 类音频功率放大器
LM4674ATL NSC

获取价格

Filterless 2.5W Stereo Class D Audio Power Amplifier
LM4674ATL/NOPB TI

获取价格

免滤波 2.5 立体声 D 类音频功率放大器 | YZR | 16 | -40 to 85
LM4674ATLX/NOPB NSC

获取价格

IC 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA16, 2 X 2 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, BG