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LM4817 PDF预览

LM4817

更新时间: 2024-01-22 06:30:08
品牌 Logo 应用领域
美国国家半导体 - NSC 音频放大器
页数 文件大小 规格书
21页 733K
描述
1W Stereo Audio Amplifier Plus Adjustable Output Limiter Plus Adjustable LDO

LM4817 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SSOP
包装说明:TSSOP, TSSOP28,.25针数:28
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.67
标称带宽:20 kHz商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
长度:9.7 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:28最高工作温度:85 °C
最低工作温度:-40 °C标称输出功率:1.5 W
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP28,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:3/5 V认证状态:Not Qualified
座面最大高度:1.1 mm子类别:Audio/Video Amplifiers
最大压摆率:15 mA最大供电电压 (Vsup):6 V
最小供电电压 (Vsup):2.5 V表面贴装:YES
技术:BIPOLAR温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm

LM4817 数据手册

 浏览型号LM4817的Datasheet PDF文件第2页浏览型号LM4817的Datasheet PDF文件第3页浏览型号LM4817的Datasheet PDF文件第4页浏览型号LM4817的Datasheet PDF文件第5页浏览型号LM4817的Datasheet PDF文件第6页浏览型号LM4817的Datasheet PDF文件第7页 
March 2004  
LM4817  
1W Stereo Audio Amplifier Plus Adjustable Output  
Limiter Plus Adjustable LDO  
General Description  
Key Specifications  
n PO (BTL): VDD = 5V, THD+N 1%, RL = 81.0W(typ)  
The LM4817 combines a bridge-connected (BTL) stereo  
audio power amplifier with a low dropout voltage regulator  
(LDO). The audio amplifier delivers 1.0W to a 8load with a  
less than 1.0% THD+N while operating on a 5V power  
supply. With VLIM set to 1.0V, the amplifier outputs are  
n Power supply range (amplifier)  
n Power supply range (LDO)  
n Shutdown current  
3.0V to 5.5V  
2.5V to 6.0V  
0.07µA (typ)  
300mA (min)  
120mV (typ)  
90µA (typ)  
n LDO output current  
clamped to 6Vp-p  
,
800mV.  
n LDO dropout voltage (IOUT = 300mA)  
n LDO quiescent supply current  
n LDO shutdown supply current  
n LDO PSRR  
n LDO turn-on time  
n LDO ouput noise-voltage  
With the LM4817’s adjustable low-dropout (LDO) CMOS  
linear regulator delivers an output current of up to 300mA,  
has shutdown mode (1nA, typ) low quiescent current (90µA,  
typ) and LDO voltage (120mV, typ). The regulator is stable  
with small ceramic capacitive load (2.2µF, typ). The regulator  
includes regulation fault detection, a bandgap voltage refer-  
ence, and constant current limiting. It is designed for low  
power, low current applications that can take advantage of  
its 300mA output current capability.  
1nA (typ)  
60dB  
120ms (typ)  
37µVRMS (typ)  
Features  
n Stereo BTL amplifier  
The LM4817 features an externally controlled micropower  
shutdown mode and thermal shutdown protection. It also  
utilizes circuitry that reduces "clicks and pops" during device  
turn-on and return from shutdown.  
n Adjustable output voltage magnitude limiter  
n Adjustable LDO regulator  
n “Click and pop” suppression circuitry  
n LDO is stable with small-value ceramic output capacitors  
n Unity-gain stable audio amplifiers  
n LDO has over-current protection  
Boomer audio power amplifiers are designed specifically to  
use few external components and provide high quality output  
power in a surface mount package.  
n Thermal shutdown protection circuitry  
n TSSOP (MH) package  
Applications  
n Multimedia monitors  
n Portable and desktop computers  
n Portable televisions  
Connection Diagram  
20078129  
Top View  
Order Number LM4817MH  
See NS Package Number MXA28A for TSSOP  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2004 National Semiconductor Corporation  
DS200781  
www.national.com  

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