參數(shù)資料
型號(hào)： LM4951
廠商： National Semiconductor Corporation
英文描述： Wide Voltage Range 1.8 Watt Audio Amplifier
中文描述： 寬電壓范圍1.8瓦音頻功率放大器
文件頁數(shù)： 3/18頁
文件大?。?/td> 1119K
代理商： LM4951
Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
9.5V
65C to +150C
0.3V to V
DD
+ 0.3V
Internally limited
2000V
200V
150C
Thermal Resistance
θ
JA
(LLP) (Note 3)
See AN-1187 ’Leadless
Leadframe Packaging (LLP).’
73C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
40C
≤
T
A
≤
+85C
2.7V
≤
V
DD
≤
9V
Electrical Characteristics V
DD
= 7.5V
(Notes 1, 2)
The following specifications apply for V
DD
= 7.5V, A
V-BTL
= 6dB, R
L
= 8
unless otherwise specified. Limits apply for T
A
=
25C.
Symbol
Parameter
Conditions
LM4951
Units
(Limits)
Typical
(Note 6)
2.5
0.01
5
Limit
(Notes 7, 8)
4.5
5
30
1.2
0.4
45
I
DD
I
SD
V
OS
V
SDIH
V
SDIL
Rpulldown
T
WU
Tsd
Quiescent Power Supply Current
Shutdown Current
Offset Voltage
Shutdown Voltage Input High
Shutdown Voltage Input Low
Pulldown Resistor on S/D
Wake-up Time
Shutdown time
V
IN
= 0V, I
O
= 0A,RL = 8
V
SHUTDOWN
= GND (Note 9)
mA (max)
μA (max)
mV (max)
V (min)
V (max)
k
(min)
ms
ms (max)
C (min)
C (max)
75
25
C
B
= 1.0μF
C
B
= 1.0μF
10
150
190
TSD
Thermal Shutdown Temperature
170
P
O
Output Power
THD = 1% (max); f = 1kHz
R
L
= 8
Mono BTL
P
O
= 600mWrms; f = 1kHz
A
V-BTL
= 6dB
P
O
= 600mWrms; f = 1kHz
A
V-BTL
= 26dB
A-Weighted Filter, R
i
= R
f
= 20k
Input Referred, Note 10
V
RIPPLE
= 200mV
p-p
, f = 217Hz,
C
B
= 1.0μF, Input Referred
1.8
1.5
W (min)
THD+N
Total Harmomic Distortion + Noise
0.07
0.5
% (max)
THD+N
Total Harmomic Distortion + Noise
0.35
%
e
OS
Output Noise
10
μV
PSRR
Power Supply Rejection Ratio
66
56
dB (min)
Electrical Characteristics V
DD
= 3.3V
(Notes 1, 2)
The following specifications apply for V
DD
= 3.3V, A
V-BTL
= 6dB, R
L
= 8
unless otherwise specified. Limits apply for T
A
=
25C.
Symbol
Parameter
Conditions
LM4951
Units
(Limits)
Typical
(Note 6)
2.5
0.01
3
Limit
(Notes 7, 8)
4.5
2
30
1.2
0.4
I
DD
I
SD
V
OS
V
SDIH
V
SDIL
T
WU
Tsd
Quiescent Power Supply Current
Shutdown Current
Offset Voltage
Shutdown Voltage Input High
Shutdown Voltage Input Low
Wake-up Time
Shutdown time
V
IN
= 0V, I
O
= 0A,RL = 8
V
SHUTDOWN
= GND (Note 9)
mA (max)
μA (max)
mV (max)
V (min)
V (max)
ms (max)
ms (max)
C
B
= 1.0μF
C
B
= 1.0μF
25
10
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4951A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection
LM4951ASD 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4951ASD/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4951ASDBD 功能描述:BOARD EVALUATION FOR LM4951A RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 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:1 系列:-
LM4951ASDBD/NOPB 功能描述:音頻 IC 開發(fā)工具 LM4951ASD EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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