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參數(shù)資料
| 型號： | LM4752T/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 7 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM7 |
| 封裝： | LEAD FREE, PLASTIC, TO-220, 7 PIN |
| 文件頁數(shù)： | 16/22頁 |
| 文件大?。?/td> | 521K |
| 代理商： | LM4752T/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
40V
Input Voltage
±0.7V
Input Voltage at Output Pins (Note 8)
GND – 0.4V
Output Current
Internally Limited
Power Dissipation (Note 3)
62.5W
ESD Susceptibility (Note 4)
2 kV
Junction Temperature
150°C
Soldering Information
T Package (10 sec)
250°C
Storage Temperature
40°C to 150°C
Operating Ratings
Temperature Range
T
MIN ≤ TA ≤ TMAX
40°C
≤ T
A ≤ +85°C
Supply Voltage
9V to 32V
θ
JC
2°C/W
θ
JA
79°C/W
Electrical Characteristics
The following specifications apply to each channel with V
CC = 24V, TA = 25°C 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
7
W
Average per Channel)
f = 1 kHz, THD+N = 10%, R
L = 4
10
W(min)
V
CC = 20V, RL = 8
4
W
V
CC = 20V, R L = 4
7
W
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 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:
For operating at case temperatures above 25°C, the device must be derated based on a 150°C maximum junction temperature and a thermal resistance
of
θ
JC = 2°C/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 25°C 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 V
S > 16V due to impractical heatsinking limitations.
Note 8:
The outputs of the LM4752 cannot be driven externally in any mode with a voltage lower than -0.4V below GND or permanent damage to the LM4752
will result.
3
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LM4752
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4752TS | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4752TS/NOPB | 功能描述:音頻放大器 STEREO 11W AUDIO PWR AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4753 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 10W Audio Power Amplifier w/Mute, Standby and Volume Control |
| LM4753T | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM4755 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 11W Audio Power Amplifier with Mute |
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