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參數(shù)資料
| 型號： | LM1877N-9A |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP14 |
| 封裝： | MDIP-14 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 309K |
| 代理商： | LM1877N-9A |
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 de-
vice is functional, but do not guarantee specific performance limits.
Electrical Characteristics
V
S = 20V, TA = 25C, (Note 2) RL = 8,AV = 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.
www.national.com
3
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