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参数资料
| 型号： | LM4752MWC |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 7 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封装： | WAFER |
| 文件页数： | 12/21页 |
| 文件大小： | 732K |
| 代理商： | LM4752MWC |
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
40V
Input Voltage
±0.7V
Output Current
Internally Limited
Power Dissipation (Note 3)
62.5W
ESD Susceptability (Note 4)
2 kV
Junction Temperature
150C
Soldering Information
T Package (10 sec)
250C
Storage Temperature
40C to 150C
Operating Ratings
Temperature Range
T
MIN ≤ TA ≤ TMAX
40C
≤ T
A ≤ +85C
Supply Voltage
9V to 32V
θ
JC
2C/W
θ
JA
79C/W
Electrical Characteristics
The following specifications apply to each channel with V
CC = 24V, TA = 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4752
Units
(Limits)
Typical
(Note 5)
Limit
(Note 6)
I
total
Total Quiescent Power Supply
Current
V
INAC = 0V, Vo = 0V, RL = ∞
10.5
20
mA(max)
7
mA(min)
P
o
Output Power (Continuous
f = 1 kHz, THD+N = 10%, R
L =8
7W
Average per Channel)
f = 1 kHz, THD+N = 10%, R
L =4
10
W(min)
V
CC = 20V, RL =8
4W
V
CC = 20V, R L =4
7W
f = 1 kHz, THD+N = 10%, R
L =4
V
S = 12V, TO-263 Pkg.
2.5
W
THD+N
Total Harmonic Distortion plus
Noise
f = 1 kHz, P
o = 1 W/ch, RL =8
0.08
%
V
OSW
Output Swing
R
L =8,V CC = 20V
15
V
R
L =4,V CC = 20V
14
V
X
talk
Channel Separation
See
Figure 1
55
dB
f = 1 kHz, V
o = 4 Vrms, RL =8
PSRR
Power Supply Rejection Ratio
See
Figure 1
50
dB
V
CC = 22V to 26V, R L =8
V
ODV
Differential DC Output Offset
Voltage
V
INAC = 0V
0.09
0.4
V(max)
SR
Slew Rate
2
V/s
R
IN
Input Impedance
83
k
PBW
Power Bandwidth
3 dB BW at P
o = 2.5W, RL =8
65
kHz
A
VCL
Closed Loop Gain (Internally Set)
R
L =8
34
33
dB(min)
35
dB(max)
e
in
Noise
IHF-A Weighting Filter, R
L =8
0.2
mVrms
Output Referred
I
o
Output Short Circuit Current Limit
V
IN = 0.5V, R L =2
2
A(min)
Note 1: All voltages are measured with respect to the GND pin (4), 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 func-
tional, but do not guarantee specific performance limits.
Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-
antee 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: For operating at case temperatures above 25C, the device must be derated based on a 150C maximum junction temperature and a thermal resistance of
θJC = 2C/W (junction to case). Refer to the section Determining the Maximum Power Dissipation in the Application Information section for more information.
Note 4: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5: Typicals are measured at 25C and represent the parametric norm.
Note 6: Limits are guarantees that all parts are tested in production to meet the stated values.
Note 7: The TO-263 Package is not recommended for VS > 16V due to impractical heatsinking limitations.
LM4752
www.national.com
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4752T | 制造商:National Semiconductor Corporation 功能描述: 制造商:Texas Instruments 功能描述: |
| LM4752T/NOPB | 功能描述:IC AMP AUDIO PWR 11W AB TO220-7 RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| LM4752T/NOPB | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC |
| LM4752TS | 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 |
| LM4752TS/NOPB | 功能描述:音频放大器 STEREO 11W AUDIO PWR AMP 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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