參數(shù)資料
型號： LDC08A
廠商： National Semiconductor Corporation
英文描述： 3W Audio Power Amplifier with Shutdown Mode
中文描述： 3W音頻功率放大器關(guān)斷模式
文件頁數(shù)： 3/15頁
文件大?。?/td> 543K
代理商： LDC08A
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
Supply Voltage
Supply Temperature
Input Voltage
Power Dissipation (Note 4)
ESD Susceptibility (Note 5)
ESD Susceptibility (Note 6)
Junction Temperature
6.0V
65C to +150C
0.3V to V
DD
to +0.3V
Internally Limited
2000V
200V
150C
Thermal Resistance
θ
JC
(LD) (Note 9)
θ
JA
(LD)
θ
JC
(MA)
θ
JA
(MA)
4.3C/W
56C/W
35C/W
140C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
40C
≤
T
A
≤
+85C
2.2V
≤
V
DD
≤
5.5V
Electrical Characteristics V
DD
= 5V
(Notes 2, 3)
The following specifications apply for V
DD
= 5V and R
L
= 8
unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4991
Typical
(Note 7)
3
4
0.1
1.5
1.3
5
Limit
(Note 8)
7
10
2.0
Units
(Limits)
I
DD
Quiescent Power Supply
Current
V
IN
= 0V, no Load
V
IN
= 0V, R
L
= 8
V
SHUTDOWN
= V
DD
mA (max)
I
SD
V
SDIH
V
SDIL
V
OS
Shutdown Current
Shutdown Voltage
μA (max)
V
V
mV (max)
Output Offset Voltage
35
P
o
Output Power
THD = 1% (max), f = 1kHz
LM4991LD, R
L
= 3
(Note 10)
LM4991LD, R
L
= 4
(Note 10)
LM4991, R
L
= 8
THD+N = 10%, f = 1kHz
LM4991LD, R
L
= 3
(Note 10)
LM4991LD, R
L
= 4
(Note 10)
LM4991, R
L
= 8
2.38
2.1
1.3
0.9
W (min)
3
2.5
1.5
W
THD+N
Total Harmonic
Distortion+Noise
Power Supply Rejection
Ratio
P
O
= 0.5W, f = 1kHz
0.2
%
PSRR
V
RIPPLE
= 200mV sine p-p,
Input terminated with 10
,
f = 1kHz
64
55
dB (min)
Electrical Characteristics V
DD
= 3V
(Notes 2, 3)
The following specifications apply for V
DD
= 3V and R
L
= 8
unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4991
Typical
(Note 7)
3
4
0.1
1.1
0.9
5
Limit
(Note 8)
7
7
2.0
Units
(Limits)
I
DD
Quiescent Power Supply
Current
V
IN
= 0V, no Load
V
IN
= 0V, R
L
= 8
V
SHUTDOWN
= V
DD
mA (max)
I
SD
V
SDIH
V
SDIL
V
OS
P
o
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
Output Power
μA (max)
V
V
mV (max)
35
THD = 1% (max), f = 1kHz
R
L
= 4
R
L
= 8
600
425
mW
THD+N
Total Harmonic
Distortion+Noise
P
O
= 0.25W, f = 1kHz
0.1
%
L
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