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LM4890IBL

更新时间： 2024-02-09 11:55:45
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
31页 1202K
描述
1 Watt Audio Power Amplifier

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LM4890IBL 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：SOP, SOP8,.25Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.01标称带宽：20 kHz
商用集成电路类型：AUDIO AMPLIFIER谐波失真：2%
JESD-30 代码：R-PDSO-G8JESD-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 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：40
宽度：3.9 mmBase Number Matches：1

LM4890IBL 数据手册

 浏览型号LM4890IBL的Datasheet PDF文件第2页浏览型号LM4890IBL的Datasheet PDF文件第3页浏览型号LM4890IBL的Datasheet PDF文件第4页浏览型号LM4890IBL的Datasheet PDF文件第6页浏览型号LM4890IBL的Datasheet PDF文件第7页浏览型号LM4890IBL的Datasheet PDF文件第8页 
Electrical Characteristics VDD = 3V (Notes 1, 2, 8)  
The following specifications apply for the circuit shown in Figure 1 unless otherwise specified. Limits apply for TA  
25˚C. (Continued)  
=
LM4890  
Units  
(Limits)  
Symbol  
Po  
Parameter  
Output Power ( 8Ω )  
Conditions  
Typical  
(Note 6)  
0.31  
Limit  
(Notes 7, 9)  
0.28  
THD = 1% (max); f = 1kHz  
W
TSD  
Thermal Shutdown Temperature  
150  
˚C(min)  
˚C(max)  
%
170  
190  
THD+N  
PSRR  
Total Harmonic Distortion+Noise  
Power Supply Rejection Ratio  
(Note 14)  
Po = 0.15Wrms; f = 1kHz  
Vripple = 200mV sine p-p  
Input terminated with 10 ohms to  
ground  
0.1  
56 (f =  
45  
dB(min)  
217Hz)  
62 (f = 1kHz)  
Electrical Characteristics VDD = 2.6V (Notes 1, 2, 8)  
The following specifications apply for for the circuit shown in Figure 1 unless otherwise specified. Limits apply for TA = 25˚C.  
LM4890  
Units  
Symbol  
IDD  
Parameter  
Conditions  
Typical  
(Note 6)  
2.6  
Limit  
(Limits)  
(Notes 7, 9)  
Quiescent Power Supply Current  
Shutdown Current  
VIN = 0V, Io = 0A, No Load  
VSHUTDOWN = 0V  
mA (max)  
ISD  
P0  
0.1  
µA (max)  
Output Power ( 8Ω )  
Output Power ( 4Ω )  
THD = 1% (max); f = 1 kHz  
THD = 1% (max); f = 1 kHz  
Po = 0.1Wrms; f = 1kHz  
Vripple = 200mV sine p-p  
Input Terminated with 10 ohms to  
ground  
0.2  
W
W
%
0.22  
THD+N  
PSRR  
Total Harmonic Distortion+Noise  
Power Supply Rejection Ratio  
(Note 14)  
0.08  
44 (f =  
217Hz)  
44 (f = 1kHz)  
dB  
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.  
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: 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 LM4890, see power derating  
DMAX  
JMAX A JA  
curves for additional information.  
Note 4: Human body model, 100 pF discharged through a 1.5 kΩ resistor.  
Note 5: Machine Model, 220 pF–240 pF discharged through all pins.  
Note 6: Typicals are measured at 25˚C and represent the parametric norm.  
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).  
Note 8: For micro SMD only, shutdown current is measured in a Normal Room Environment. Exposure to direct sunlight will increase I by a maximum of 2µA.  
SD  
Note 9: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.  
Note 10: ROUT is measured from each of the output pins to ground. This value represents the parallel combination of the 10k ohm output resistors and the two 20k  
ohm resistors.  
Note 11: If the product is in shutdown mode and V exceeds 6V (to a max of 8V V ), then most of the excess current will flow through the ESD protection circuits.  
DD  
DD  
If the source impedance limits the current to a max of 10 ma, then the part will be protected. If the part is enabled when V is greater than 5.5V and less than 6.5V,  
DD  
no damage will occur, although operational life will be reduced. Operation above 6.5V with no current limit will result in permanent damage.  
Note 12: All bumps have the same thermal resistance and contribute equally when used to lower thermal resistance. All bumps must be connected to achieve  
specified thermal resistance.  
Note 13: Maximum power dissipation (P  
) in the device occurs at an output power level significantly below full output power. P  
can be calculated using  
DMAX  
DMAX  
Equation 1 shown in the Application section. It may also be obtained from the power dissipation graphs.  
Note 14: PSRR is a function of system gain. Specifications apply to the circuit in Figure 1 where A = 2. Higher system gains will reduce PSRR value by the amount  
V
of gain increase. A system gain of 10 represents a gain increase of 14dB. PSRR will be reduced by 14dB and applies to all operating voltages.  
5
www.national.com  
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