參數(shù)資料
型號(hào)： LM4730TA/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 14 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15
封裝： PLASTIC, TO-220, 15 PIN
文件頁數(shù)： 11/17頁
文件大?。?/td> 647K
代理商： LM4730TA/NOPB
Absolute Maximum Ratings (Notes 1,
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage |V
+|+|V-|
50V
Common Mode Input Voltage
V
+ or V-
Differential Input Voltage
50V
Output Current
Internally Limited
Power Dissipation (Note 3)
40W
ESD Susceptability (Note 4)
2.0kV
ESD Susceptability (Note 5)
250V
Junction Temperature (T
JMAX) (Note 9)
150C
Soldering Information
T Package (10 sec.)
260C
Storage Temperature
40C to +150C
Thermal Resistance
θ
JA (TA)
43C/W
θ
JC (TA)
1.5C/W
Operating Ratings (Notes 1, 2)
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
20C
≤ T
A
≤ +85C
Supply Voltage |V
+|+|V-|
20V
≤ V
TOTAL
≤ 50V
Electrical Characteristics (Notes 1, 2)
The following specifications apply for V
+ = +17V, V- = 17V and R
L =8
unless otherwise specified. Limits apply for T
A =
25C.
Symbol
Parameter
Conditions
LM4730
Units
(Limits)
Typical
Limit
(Notes 7, 8)
|V
+|+|V-|
Power Supply Voltage (Note 10)
GND V
-
≥ 9V
20
50
V (min)
V (max)
A
M
Mute Attenuation
85
dB
P
O
Output Power (RMS)
THD+N = 10% (max), f = 1kHz
|V
+|=|V-| =14V, R
L =4
|V
+|=|V-| =17V, R
L =8
14
12
W (min)
THD+N = 1% (max), f = 1kHz
|V
+|=|V-| =14V, R
L =4
|V
+|=|V-| =17V, R
L =8
11
9
W (min)
THD+N
Total Harmonic Distortion +
Noise
P
O = 1W, f = 1kHz
A
V = 26dB
|V
+|=|V-| =14V, R
L =4
|V
+|=|V-| =17V, R
L =8
0.03
0.02
0.5
0.3
% (max)
X
talk
Channel Separation
P
O = 10W
f = 1kHz
f = 10kHz
65
60
dB
SR
Slew Rate (Note 11)
V
IN = 2.0Vp-p,trise = 2ns
18
V/s
I
DD
Total Quiescent Power Supply
Current
V
CM = 0V, VO = 0V, IO =0A
Standby off (Play Mode)
Standby on (Standby Mode)
90
3.5
100
6
mA (max)
V
OS
Input Offset Voltage
V
CM = 0V, IO = 0 mA
2.0
15
mV (max)
I
B
Input Bias Current
V
CM = 0V, IO = 0 mA
0.2
A
PSRR
Power Supply Rejection Ratio
V
RIPPLE =1VRMS,fRIPPLE = 120Hz sine
wave
Inputs terminated to GND
50
dB
A
VOL
Open Loop Voltage Gain
R
L =2 k
, V
O = 20V
110
dB
e
IN
Input Noise
IHF — A-Weighting Filter
2.0
8
V (max)
R
IN = 600
(Input Referred)
Standby
V
IL
Standby Low Input Voltage
Not in Standby Mode (Play)
0.8
V (max)
V
IH
Standby High Input Voltage
In Standby Mode
2.0
2.5
V (min)
Mute
LM4730
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