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參數(shù)資料
| 型號： | LM1875DWF |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 25 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封裝： | WAFER |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 537K |
| 代理商： | LM1875DWF |
Absolute Maximum Ratings (Note 1)
Supply Voltage
60V
Input Voltage
V
EE to VCC
Storage Temperature
65C to + 150C
Junction Temperature
150C
Lead Temperature
(Soldering, 10 seconds)
260C
θ
JC
3C
θ
JA
73C
Electrical Characteristics
V
CC=+25V, VEE=25V, TAMBIENT=25C, RL=8,AV=20 (26 dB), fo=1 kHz, unless otherwise specified.
Parameter
Conditions
Typical
Tested Limits
Units
Supply Current
P
OUT=0W
70
100
mA
Output Power (Note 2)
THD=1%
25
W
THD (Note 2)
P
OUT=20W, fo=1 kHz
0.015
%
P
OUT=20W, fo=20 kHz
0.05
0.4
%
P
OUT=20W, RL=4,fo=1 kHz
0.022
%
P
OUT=20W, RL=4,fo=20 kHz
0.07
0.6
%
Offset Voltage
±1
±15
mV
Input Bias Current
±0.2
±2A
Input Offset Current
0
±0.5
A
Gain-Bandwidth Product
f
o=20 kHz
5.5
MHz
Open Loop Gain
DC
90
dB
PSRR
V
CC, 1 kHz, 1 Vrms
95
52
dB
V
EE, 1 kHz, 1 Vrms
83
52
dB
Max Slew Rate
20W, 8
, 70 kHz BW
8
V/s
Current Limit
V
OUT = VSUPPLY 10V
4
3
A
Equivalent Input Noise Voltage
R
S=600, CCIR
3
Vrms
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.
Note 2: Assumes the use of a heat sink having a thermal resistance of 1C/W and no insulator with an ambient temperature of 25C. Because the output limiting
circuitry has a negative temperature coefficient, the maximum output power delivered to a 4
load may be slightly reduced when the tab temperature exceeds 55C.
Typical Applications
Typical Single Supply Operation
DS005030-3
www.national.com
2
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