Datasheet > LM4882MM/NOPB

LM4882MM/NOPB

更新时间： 2024-01-11 12:26:47

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		放大器光电二极管商用集成电路
页数	文件大小	规格书
16页	1197K
描述
0.48W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8, MSOP-8

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技术参数
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LM4882MM/NOPB 技术参数

是否无铅：	不含铅	生命周期：	Active
零件包装代码：	MSOP	包装说明：	MSOP-8
针数：	8	Reach Compliance Code：	unknown
风险等级：	5.7	标称带宽：	20 kHz
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	S-PDSO-G8
JESD-609代码：	e3	长度：	3 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：	0.48 W	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
认证状态：	COMMERCIAL	座面最大高度：	1.09 mm
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	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：	40	宽度：	3 mm
Base Number Matches：	1

LM4882MM/NOPB 数据手册

Electrical Characteristics (Notes 1, 2) (Continued)

The following specifications apply for V_DD= 3V unless otherwise specified. Limits apply for T_A= 25˚C.

LM4882

Units

(Limits)

Symbol

THD + N

Parameter

Conditions

Typical

Limit

(Note 5)

0.25

(Note 6)

Total Harmonic Distortion + Noise

R_L= 8Ω, P = 70 mWrms;

R_L= 32Ω, P_O= 30 mWrms;

0.3

f = 1 kHz

PSRR

Power Supply Rejection Ratio

V_pin3= 2.5V, V

f = 120 Hz

= 200 mVrms,

ripple

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 Characteristicsstate 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

JMAX JA

allowable power dissipation is P

= (T

− T )/θ . For the LM4882, T

= 150˚C, and the typical junction-to-ambient thermal resistance, when board

DMAX

JMAX

mounted, is 210˚C/W for the MUA08A Package and 170˚C/W for the M08A Package.

Note 4: Human body model, 100 pF discharged through a 1.5 kΩ resistor.

Note 5: Typicals are measured at 25˚C and represent the parametric norm.

Note 6: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

External Components Description

(Refer to Figure 1)

Components

Functional Description

1. R_i

Inverting input resistance which sets the closed-loop gain in conjunction with R_f. This resistor also forms a high

pass filter with C_iat f_c= 1 / (2πR_iC_i).

2. C_i

Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a highpass

filter with R_iat f_c= 1 / (2πR_iC ). Refer to the section, Proper Selection of External Components, for an

explanation of how to determine the values of C_i.

3. R_f

Feedback resistance which sets closed-loop gain in conjunction with R_i.

Supply bypass capacitor which provides power supply filtering. Refer to the Application Information section

for proper placement and selection of the supply bypass capacitor.

4. C_S

5. C_B

6. C_O

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 C_B.

Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high pass filter wth R_L

at f_O= 1 / (2πR_LC _O).

Typical Performance Characteristics

THD+N vs Frequency

10003026

10003009

www.national.com

1 2 3 456 7 8...16

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