參數(shù)資料
型號(hào)： LM2876MWC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 40 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC7
封裝： WAFER
文件頁(yè)數(shù)： 16/22頁(yè)
文件大?。?/td> 611K
代理商： LM2876MWC
Absolute Maximum Ratings (Notes 4, 5)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage |V
+|+|V| (No Signal)
72V
Supply Voltage |V
+|+|V| (Input Signal)
70V
Common Mode Input Voltage
(V
+ or V) and
|V
+|+|V|
≤ 60V
Differential Input Voltage
60V
Output Current
Internally Limited
Power Dissipation (Note 6)
125W
ESD Susceptibility (Note 7)
3000V
Junction Temperature (Note 8)
150C
Soldering Information
T Package (10 seconds)
260C
Storage Temperature
40C to +150C
Thermal Resistance
θ
JC
1C/W
θ
JA
43C/W
Operating Ratings (Notes 4, 5)
Temperature Range
T
MIN ≤ TA ≤ TMAX
20C
≤ T
A ≤ +85C
Supply Voltage |V
+|+|V|
20V to 60V
Note 1: Operation is guaranteed up to 60V, however, distortion may be intro-
duced from SPiKe Protection Circuitry if proper thermal considerations are
not taken into account. Refer to the Thermal Considerations section for
more information.
(See SPiKe Protection Response)
Electrical Characteristics (Notes 4, 5)
The following specifications apply for V
+ = +30V, V = 30V, I
MUTE = 0.5 mA with RL =8 unless otherwise specified. Limits
apply for T
A = 25C.
Symbol
Parameter
Conditions
LM2876
Units
(Limits)
Typical
Limit
(Note 9) (Note 10)
|V
+|+|V|
Power Supply Voltage (Note 13)
V
pin7 V
≥ 9V
18
20
V (min)
60
V (max)
A
M
Mute Attenuation
Pin 8 Open or at 0V, Mute: On
Current out of Pin 8 > 0.5 mA,
115
80
dB (min)
Mute: Off
P
O
(Note 3)
Output Power (Continuous Average)
THD + N = 0.1% (max)
40
25
W (min)
f = 1 kHz; f = 20 kHz
Peak P
O
Instantaneous Peak Output Power
75
W
THD + N
Total Harmonic Distortion Plus Noise
25W, 20 Hz
≤ f ≤ 20 kHz
0.06
%
A
V =26 dB
SR
(Note 3)
Slew Rate (Note 12)
V
IN = 1.2 Vrms, f = 10 kHz,
9
5
V/s
(min)
Square-Wave, R
L =2 k
I
+ (Note 2)
Total Quiescent Power Supply Current
V
CM = 0V, Vo = 0V, Io = 0A
24
50
mA (max)
V
OS
(Note 2)
Input Offset Voltage
V
CM = 0V, Io = 0 mA
1
10
mV (max)
I
B
Input Bias Current
V
CM = 0V, Io = 0 mA
0.2
1
A (max)
I
OS
Input Offset Current
V
CM = 0V, Io = 0 mA
0.01
0.2
A (max)
I
o
Output Current Limit
|V
+|=|V| = 10V, t
ON = 10 ms, VO = 0V
4
3
A (min)
V
od
(Note 2)
Output Dropout Voltage (Note 14)
|V
+–V
O|, V
+ = 20V, I
o = +100 mA
1.5
4
V (max)
|V
O–V
|, V = 20V, I
o = 100 mA
2.5
4
V (max)
PSRR
(Note 2)
Power Supply Rejection Ratio
V
+ = 30V to 10V, V = 30V,
125
85
dB (min)
V
CM = 0V, Io =0 mA
V
+ = 30V, V = 30V to 10V,
110
85
dB (min)
V
CM = 0V, Io =0 mA
CMRR
(Note 2)
Common Mode Rejection Ratio
V
+ = 50V to 10V, V = 10V to 50V,
110
75
dB (min)
V
CM = 20V to 20V, Io =0 mA
A
VOL
(Note 2)
Open Loop Voltage Gain
|V
+|=|V| = 30V, R
L =2 k, VO = 40V
115
80
dB (min)
GBWP
Gain-Bandwidth Product
|V
+|=|V| = 30V
8
2
MHz
(min)
f
O = 100 kHz, VIN = 50 mVrms
LM2876
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