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參數(shù)資料
| 型號： | LM4891 |
| 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)： | 3/20頁 |
| 文件大小： | 733K |
| 代理商： | LM4891 |
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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| LM4891IBP | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1 Watt Audio Power Amplifier |
| LM4891IBP/NOPB | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4891IBPX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1 Watt Audio Power Amplifier |
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