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参数资料
| 型号： | LM4875MMX/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频控制 |
| 英文描述： | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO8 |
| 封装： | 0.118 INCH, MSOP-8 |
| 文件页数： | 8/15页 |
| 文件大小： | 664K |
| 代理商： | LM4875MMX/NOPB |
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
65C to +150C
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility (Note 4)
2000V
ESD Susceptibility (Note 5)
200V
Junction Temperature
150C
Soldering Information
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
Thermal Resistanc
θ
JC (SOP)
35C/W
θ
JA (SOP)
150C/W
θ
JC (MSOP)
56C/W
θ
JA (MSOP)
190C/W
Operating Ratings
Temperature Range
T
MIN ≤ TA ≤ TMAX
40C
≤ T
A ≤ +85C
Supply Voltage
2.7V
≤ V
DD ≤ 5.5V
See AN-450 “Surface Mounting and their Effects on Product
Reliability” for other methods of soldering surface mount
devices.
Electrical Characteristics (Notes 1, 2)
The following specifications apply for V
DD = 5V, unless otherwise specified. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4875
Min
(Note 7)
Typical
(Note 6)
Max
(Note 7)
Units
V
DD
Supply Voltage
2.7
5.5
V
I
DD
Quiescent Power Supply
Current
V
IN = 0V, IO = 0A, HP Sense = 0V
4
7
mA
V
IN = 0V, IO - 0A, HP Sense = 5V
3.5
6
mA
I
SD
Shutdown Current
V
PIN4 ≤ 0.3V
0.7
A
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV
P
O
Output Power
THD = 1% (max), HP Sense < 0.8V,
f = 1kHz, R
L =8
500
750
mW
THD = 10% (max), HP Sense < 0.8V,
f = 1kHz, R
L =8
1.0
W
THD+N=1%, HP Sense > 4V,
f = 1kHz, R
L =32
80
mW
THD = 10%, HP Sense > 4V,
f = 1kHz, R
L =32
110
mW
THD+N
Total Harmonic Distortion +
Noise
P
O = 300 mWrms, f = 20Hz–20kHz,
R
L =8
0.6
%
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mVrms, RL =8,CB =
1.0 F, f = 1kHz
50
dB
Gain
RANGE
Single-Ended Gain Range
Gain with V
PIN4 ≥ 4.0V, (80% of VDD)
18.8
20
dB
Gain with V
PIN4 ≤ 0.9V, (20% of VDD)
70
72
dB
V
IH
HP Sense High Input Voltage
4
V
IL
HP Sense Low Input Voltage
0.8
V
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
that guarantee specific performance limits. This assumes that the device operates within the Operating Ratings. Specifications are not guaranteed for parameters
where no limit is given. The typical value, however, is a good indication of device performance.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX =(TJMAX TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4875M, TJMAX =
150C.
Note 4: Human body model, 100pF discharged through a 1.5k
resistor.
Note 5: Machine Model, 220pF–240pF discharged through all pins.
Note 6: Typicals are measured at 25C and represent the parametric norm.
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
LM4875
www.national.com
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4875MX | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4875MX/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| LM4876 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1.1W Audio Power Amplifier with Logic Low Shutdown |
| LM4876_03 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1.1W Audio Power Amplifier with Logic Low Shutdown |
| LM4876M | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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