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LM4995

更新时间： 2024-02-16 15:10:17
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德州仪器 - TI /
页数 文件大小 规格书
22页 954K
描述
1.3 W Audio Power Amplifier

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LM4995 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：VFBGA, BGA9,3X3,16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.14
商用集成电路类型：AUDIO AMPLIFIERJESD-30 代码：S-PBGA-B9
JESD-609代码：e1长度：1.21 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：1.3 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：3/5 V
认证状态：Not Qualified座面最大高度：0.675 mm
子类别：Audio/Video Amplifiers最大压摆率：2.5 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：1.21 mm
Base Number Matches：1

LM4995 数据手册

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LM4995, LM4995TMBD  
www.ti.com  
SNAS329G –APRIL 2006–REVISED APRIL 2013  
ELECTRICAL CHARACTERISTICS VDD = 3.0V(1)(2)  
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25°C.  
LM4995  
Typical(3)  
Units  
(Limits)  
Symbol  
Parameter  
Conditions  
Limit(4)(5)  
VIN = 0V, Io = 0A, No Load  
VIN = 0V, Io = 0A, 8Ω Load  
VSD = VGND  
1.3  
1.6  
mA  
mA  
µA  
IDD  
Quiescent Power Supply Current  
ISD  
Shutdown Current  
0.01  
5
VOS  
Po  
Output Offset Voltage  
Output Power  
No Load  
mV  
mW  
ms  
%
THD+N = 1% (max); f = 1 kHz  
400  
110  
0.07  
TWU  
THD+N  
Wake-up time  
Total Harmonic Distortion + Noise  
Po = 250mWRMS; f = 1kHz  
Vripple = 200mV sine p-p  
Input terminated to GND  
74 (f = 217Hz)  
75 (f = 1kHz)  
PSRR  
Power Supply Rejection Ratio  
dB  
VSDIH  
VSDIL  
Shutdown Voltage Input High  
Shutdown Voltage Input Low  
1.2  
1
V
V
(1) All voltages are measured with respect to the ground pin, unless otherwise specified.  
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical  
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the  
Operating Ratings. Specifications are not ensure for parameters where no limit is given, however, the typical value is a good indication  
of device performance.  
(3) Typicals are measured at 25°C and represent the parametric norm.  
(4) Limits are specified to AOQL (Average Outgoing Quality Level).  
(5) Datasheet min/max specification limits are specified by design, test, or statistical analysis.  
EXTERNAL COMPONENTS DESCRIPTION  
(Figure 1)  
Components  
Functional Description  
1.  
Ri  
Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor also forms a high pass  
filter with Ci at fC= 1/(2π RiCi).  
2.  
Ci  
Input coupling capacitor which blocks the DC voltage at the amplifiers input terminals. Also creates a highpass filter with  
Ri at fC = 1/(2π RiCi). Refer to the section, PROPER SELECTION OF EXTERNAL COMPONENTS, for an explanation  
of how to determine the value of Ci.  
3.  
4.  
Rf  
Feedback resistance which sets the closed-loop gain in conjunction with Ri.  
CS  
Supply bypass capacitor which provides power supply filtering. Refer to the POWER SUPPLY BYPASSING section for  
information concerning proper placement and selection of the supply bypass capacitor.  
5.  
CB  
Bypass pin capacitor which provides half-supply filtering. Refer to the section, PROPER SELECTION OF EXTERNAL  
COMPONENTS, for information concerning proper placement and selection of CB.  
Copyright © 2006–2013, Texas Instruments Incorporated  
Submit Documentation Feedback  
5
Product Folder Links: LM4995 LM4995TMBD  
 
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