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參數(shù)資料
| 型號(hào)： | LM4870 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.1W Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 1.1W音頻功率放大器關(guān)斷模式 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大?。?/td> | 259K |
| 代理商： | LM4870 |
Absolute Maximum Ratings
(Note 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
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
6.0V
65C to +150C
0.3V to V
DD
+ 0.3V
Internally limited
3000V
250V
150C
215C
Infrared (15 sec.)
Thermal Resistance
φ
JC
(typ)
φ
JA
(typ)
See AN-450 “Surface Mounting and their Effects on Product
Reliability” for other methods of soldering surface mount de-
vices.
220C
35C/W
100C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
20C
≤
T
A
≤
+85C
2.0V
≤
V
DD
≤
5.5V
Electrical Characteristics
(Notes 1, 2) The following specifications apply for V
DD
= 5V, R
L
= 8
unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4870
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
2.0
5.5
15.0
V
DD
Supply Voltage
V (min)
V (max)
mA (max)
μA
mV (max)
W (min)
%
dB
V (max)
V
V
V (min)
V (max)
I
DD
I
SD
V
OS
P
O
THD+N
PSRR
V
od
V
IH
V
IL
V
OH
V
OL
Quiescent Power Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
Output Dropout Voltage
HP-IN High Input Voltage
HP-IN Low Input Voltage
HP-SENSE High Output Voltage
HP-SENSE Low Output Voltage
V
O
= 0V, I
O
= 0A
V
pin2
= V
DD
V
IN
= 0V
THD+N = 0.5% (max); f = 1 kHz
P
O
= 1 Wrms; 20 Hz
≤
f
≤
20 kHz
V
DD
= 4.9V to 5.1V
V
IN
= 0V to 5V
HP-SENSE = 0V to 4V
HP-SENSE = 4V to 0V
I
O
= 500 μA
I
O
= 500 μA
7.0
0.4
10
1.1
0.25
60
0.6
2.5
2.5
2.8
0.2
50.0
1.0
1.0
2.5
0.8
Note 1:
All voltages are measured with respect to the ground pins, unless otherwise specified.
Note 2:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC andAC electrical specifications under particular test conditions which guar-
antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is
given, however, the typical value is a good indication of device performance.
Note 3:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
,
θ
, and the ambient temperature T
. The maximum
allowable power dissipation is P
= (T
T
)/
θ
or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4870, T
JMAX
=
+150C, and the typical junction-to-ambient thermal resistance, when board mounted, is 100C/W.
Note 4:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5:
Machine Model, 200 pF–240 pF discharged through all pins.
Note 6:
Typicals are measured at 25C and represent the parametric norm.
Note 7:
Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
www.national.com
2
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PDF描述 |
|---|---|
| LM4870M | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871 | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871N | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871MX | 1.1W Audio Power Amplifier with Shutdown Mode |
| LM4871M | 1.1W Audio Power Amplifier with Shutdown Mode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4870M | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM4870MX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM4871 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871_03 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3W Audio Power Amplifier with Shutdown Mode |
| LM4871LD | 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 |
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