参数资料
型号: LM1877M-9X/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 音频/视频放大
英文描述: 1.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14
封装: SOIC-14
文件页数: 3/9页
文件大小: 290K
代理商: LM1877M-9X/NOPB
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
26V
Input Voltage
±0.7V
Operating Temperature
0C to +70C
Storage Temperature
65C to +150C
Junction Temperature
150C
Lead Temperature
N-Package Soldering (10 sec.)
260C
M-Package Infared (15 sec.)
220C
M-Package Vapor Phase (60 sec.)
215C
Thermal Resistance
θ
JC (N-Package)
30C/W
θ
JA (N-Package)
79C/W
θ
JC (M-Package)
27C/W
θ
JA (M-Package)
114C/W
Note 1: 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
V
S = 20V, TA = 25C, (Note 2) RL =8
,A
V = 50 (34 dB) unless otherwise specified
Parameter
Conditions
Min
Typ
Max
Units
Total Supply Current
P
O =0W
25
50
mA
Output Power
THD = 10%
LM1877
V
S = 20V, RL =8
2.0
W/Ch
V
S = 12V, RL =8
1.3
W/Ch
Total Harmonic Distortion
LM1877
f = 1 kHz, V
S = 14V
P
O = 50 mW/Channel
0.075
%
P
O = 500 mW/Channel
0.045
%
P
O = 1 W/Channel
0.055
%
Output Swing
R
L =8
V
S 6
Vp-p
Channel Separation
C
F = 50 F, CIN = 0.1 F,
f = 1 kHz, Output Referred
V
S = 20V, VO = 4 Vrms
50
70
dB
V
S = 7V, VO = 0.5 Vrms
60
dB
PSRR Power Supply
C
F = 50 F, CIN = 0.1 F,
Rejection Ratio
f = 120 Hz, Output Referred
V
S = 20V, VRIPPLE = 1 Vrms
50
65
dB
V
S = 7V, VRIPPLE = 0.5 Vrms
40
dB
Noise
Equivalent Input Noise
R
S =0,CIN = 0.1 F,
2.5
V
BW = 20 Hz–20 kHz, Output Noise Wideband
R
S =0,CN = 0.1 F, AV 200
0.80
mV
Open Loop Gain
R
S = 0, f = 100 kHz, RL =8
70
dB
Input Offset Voltage
15
mV
Input Bias Current
50
nA
Input Impedance
Open Loop
4
M
DC Output Level
V
S = 20V
9
10
11
V
Slew Rate
2.0
V/s
Power Bandwidth
65
kHz
Current Limit
1.0
A
Note 2: For operation at ambient temperature greater than 25C, the LM1877 must be derated based on a maximum 150C junction temperature.
LM1877
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