參數(shù)資料
型號: LM4891IBP
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 1 Watt Audio Power Amplifier
中文描述: 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8
封裝: MICRO, SMD-8
文件頁數(shù): 3/20頁
文件大?。?/td> 733K
代理商: LM4891IBP
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 (Note 11)
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)
θ
JA
(micro SMD)
6.0V
65C to +150C
0.3V to V
DD
+0.3V
Internally Limited
2000V
250V
150C
35C/W
150C/W
220C/W
θ
JC
(MSOP)
θ
JA
(MSOP)
θ
JA
(LLP)
Soldering Information
See AN-1112 "microSMD Wafers Level Chip Scale
Package".
See AN-1187 "Leadlesss
Leadframe Package (LLP)".
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, 8)
Symbol
Parameter
Conditions
LM4891
Units
(Limits)
Typical
(Note 6)
4
0.1
1
0.1
62 (f =
217Hz)
66 (f = 1kHz)
Limit
(Note 7)
10
I
DD
I
SD
P
o
THD+N
PSRR
Quiescent Power Supply Current
Shutdown Current
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
V
IN
= 0V, I
o
= 0A
V
shutdown
= V
DD
THD = 2% (max); f = 1 kHz
P
o
= 0.4 Wrms; f = 1kHz
V
ripple
= 200mV sine p-p
mA (max)
μA (max)
W
%
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, 8)
Symbol
Parameter
Conditions
LM4891
Units
(Limits)
Typical
(Note 6)
3.5
0.1
0.4
0.1
60 (f =
217Hz)
62 (f = 1kHz)
Limit
(Note 7)
I
DD
I
SD
P
o
THD+N
PSRR
Quiescent Power Supply Current
Shutdown Current
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
V
IN
= 0V, I
o
= 0A
V
shutdown
= V
DD
THD = 1% (max); f = 1kHz
P
o
= 0.15Wrms; f = 1kHz
V
ripple
= 200mV sine p-p
mA (max)
μA (max)
W
%
dB
Electrical Characteristics V
DD
= 2.6V
The following specifications apply for V
DD
= 2.6V, A
V
= 2, and 8
Load unless otherwise specified. Limits apply for T
A
=
25C.
(Notes 1, 2, 8)
Symbol
Parameter
Conditions
LM4891
Units
(Limits)
Typical
(Note 6)
2.6
0.1
Limit
(Note 7)
I
DD
I
SD
Quiescent Power Supply Current
Shutdown Current
V
IN
= 0V, I
o
= 0A
V
shutdown
= V
DD
mA (max)
μA (max)
L
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