參數(shù)資料
型號: LM4889
廠商: National Semiconductor Corporation
英文描述: 1 Watt Audio Power Amplifier
中文描述: 1瓦音頻功率放大器
文件頁數(shù): 3/19頁
文件大?。?/td> 763K
代理商: LM4889
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
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
Thermal Resistance
θ
JC
(SOP)
θ
JA
(SOP)
6.0V
65C to +150C
0.3V to V
DD
+0.3V
Internally Limited
2000V
200V
150C
35C/W
150C/W
θ
JA
(8 Bump micro SMD) (Note 10)
θ
JC
(MSOP)
θ
JA
(MSOP)
θ
JA
(LLP)
Soldering Information
See AN-1112 "microSMD Wafers Level Chip Scale
Package".
210C/W
56C/W
190C/W
220C/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
The following specifications apply for V
DD
= 5V, A
V
= 2, and 8
load unless otherwise specified. Limits apply for T
A
= 25C.
(Notes 1, 2)
Symbol
Parameter
Conditions
LM4889
Units
(Limits)
Typical
(Note 6)
4
5
0.1
Limit
(Notes 7, 9)
8
8
1
1.2
0.4
I
DD
Quiescent Power Supply Current
V
IN
= 0V, I
o
= 0A, no Load
V
IN
= 0V, I
o
= 0A, with BTL Load
V
shutdown
= GND (Note 8)
mA (max)
mA (max)
μA (max)
V (min)
V (max)
W
%
I
SD
V
SDIH
V
SDIL
P
o
THD+N
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Power
Total Harmonic Distortion+Noise
THD = 2% (max); f = 1 kHz
P
o
= 0.4 Wrms; f = 1kHz
V
ripple
= 200mV sine p-p
f
ripple
= 217Hz
f
ripple
= 1kHz
V
ripple
= 200mV sine p-p
Input Floating
1
0.1
PSRR
Power Supply Rejection Ratio
62
66
dB
dB
75
68
dB
Electrical Characteristics V
DD
= 3.3V
The following specifications apply for V
DD
= 3.3V, A
V
= 2, and 8
load unless otherwise specified. Limits apply for T
A
= 25C.
(Notes 1, 2)
Symbol
Parameter
Conditions
LM4889
Units
(Limits)
Typical
(Note 6)
3.5
4.5
0.01
Limit
(Notes 7, 9)
7
7
1
1.2
0.4
I
DD
Quiescent Power Supply Current
V
IN
= 0V, I
o
= 0A, no Load
V
IN
= 0V, I
o
= 0A, with BTL Load
V
shutdown
= GND (Note 8)
mA (max)
mA (max)
μA (max)
V (min)
V (max)
W
%
I
SD
V
SDIH
V
SDIL
P
o
THD+N
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Power
Total Harmonic Distortion+Noise
THD = 1% (max); f = 1kHz
P
o
= 0.25Wrms; f = 1kHz
V
ripple
= 200mV sine p-p
f
ripple
= 217Hz
f
ripple
=1kHz
0.4
0.1
PSRR
Power Supply Rejection Ratio
60
62
dB
dB
L
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