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LM4991LD

更新时间： 2024-02-19 22:09:42
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器功率放大器
页数 文件大小 规格书
15页 540K
描述
3W Audio Power Amplifier with Shutdown Mode

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LM4991LD 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：0.86
标称带宽：20 kHz商用集成电路类型：AUDIO AMPLIFIER
谐波失真：1%JESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
标称输出功率：1.3 W封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260电源：2.6/5 V
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Audio/Video Amplifiers最大压摆率：10 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：2.2 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

LM4991LD 数据手册

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Electrical Characteristics VDD = 3V (Notes 2, 3)  
The following specifications apply for VDD = 3V and RL = 8Ω unless otherwise specified. Limits apply for TA  
=
25˚C. (Continued)  
LM4991  
Symbol  
Parameter  
Conditions  
Typical  
Limit  
Units  
(Note 7)  
(Note 8)  
(Limits)  
PSRR  
Power Supply Rejection  
Ratio  
VRIPPLE = 200mV sine p-p,  
Input terminated with 10Ω,  
f = 1kHz  
68  
dB  
Electrical Characteristics VDD = 2.6V (Notes 2, 3)  
The following specifications apply for VDD = 2.6V and RL = 8Ω unless otherwise specified. Limits apply for TA = 25˚C.  
LM4991  
Symbol  
Parameter  
Conditions  
VIN = 0V, no Load  
Typical  
(Note 7)  
Limit  
(Note 8)  
Units  
(Limits)  
Quiescent Power Supply  
Current  
2
3
IDD  
mA (max)  
VIN = 0V, RL = 8Ω  
ISD  
Shutdown Current  
VSHUTDOWN = VDD  
0.1  
1
µA(max)  
VSDIH  
VSDIL  
VOS  
Shutdown Voltage Input High  
Shutdown Voltage Input Low  
Output Offset Voltage  
V
V
0.9  
5
35  
mV (max)  
THD = 1% (max), f = 1kHz  
RL = 4Ω  
RL = 8Ω  
Po  
Output Power  
400  
300  
mW  
%
Total Harmonic  
Distortion+Noise  
Power Supply Rejection  
Ratio  
THD+N  
PSRR  
PO = 0.15W, f = 1kHz  
0.1  
VRIPPLE = 200mV sine p-p,  
Input terminated with 10Ω,  
f = 1kHz  
51  
dB  
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is  
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which  
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit  
is given, however, the typical value is a good indication of device performance.  
Note 3: All voltages are measured with respect to the ground pin, unless otherwise specified.  
Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by T  
, θ , and the ambient temperature T . The maximum  
A
JMAX JA  
allowable power dissipation is P  
= (T  
–T )/θ or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4991, T  
= 150˚C.  
DMAX  
JMAX  
A
JA  
JMAX  
For the θ ’s for different packages, please see the Application Information section or the Absolute Maximum Ratings section.  
JA  
Note 5: Human body model, 100pF discharged through a 1.5kΩ resistor.  
Note 6: Machine Model, 220pF–240pF discharged through all pins.  
Note 7: Typicals are specified at 25˚C and represent the parametric norm.  
Note 8: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).  
2
Note 9: The given θ is for an LM4991 packaged in an LDC08A with the Exposed–DAP soldered to an exposed 1in area of 1oz printed circuit board copper.  
JA  
Note 10: When driving 3Ω or 4Ω loads from a 5V supply, the LM4991LD must be mounted to a circuit board.  
www.national.com  
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