參數(shù)資料
型號(hào)： LM4755MDC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 11 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC
封裝： DIE
文件頁(yè)數(shù)： 12/19頁(yè)
文件大?。?/td> 756K
代理商： LM4755MDC
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 seconds)
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
76C/W
Electrical Characteristics
The following specifications apply to each channel with V
CC = 24V, TA = 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4755
Units
(Limits)
Typical
(Note 5)
Limit
I
TOTAL
Total Quiescent Power
Supply Current
Mute Off
10
15
mA(max)
7
mA(min)
Mute On
7
mA
P
O
Output Power (Continuous
Average per Channel)
f = 1 kHz, THD+N = 10%, R
L =8
7W
f = 1 kHz, THD+N = 10%, R
L =4
11
10
W(min)
V
S = 20V, RL =8
4W
V
S = 20V, RL =4
7W
f = 1 kHz, THD+N = 10%, R
L =4
V
S = 12V, TO-263 Pkg.
2.5
W
THD
Total Harmonic Distortion
f = 1 kHz, P
O = 1 W/ch, RL =8
0.08
%
V
OSW
Output Swing
P
O = 10W, RL =8
15
V
P
O = 10W, RL =4
14
V
X
TALK
Channel Separation
See Apps. Circuit
55
dB
f = 1 kHz, V
O = 4 Vrms
PSRR
Power Supply Rejection Ratio
See Apps. Circuit
50
dB
f = 120 Hz, V
O = 1 mVrms
V
ODV
Differential DC Output Offset
Voltage
V
IN = 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
Output Referred
0.2
mVrms
I
O
Output Short Circuit Limit
V
IN = 0.5V, RL =2
2
A(min)
Mute Pin
V
IL
Mute Low Input Voltage
Not in Mute Mode
0.8
V(max)
V
IH
Mute High Input Voltage
In Mute Mode
2.0
2.5
V(min)
A
M
Mute Attenuation
V
MUTE = 5.0V
80
dB
Note 1: All voltages are measured with respect to the GND pin (5), unless otherwse 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 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.
LM4755
www.national.com
2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LM4755TS 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
LM4755TS/NOPB 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
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