參數(shù)資料
型號: LM4871MX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 1.1W Audio Power Amplifier with Shutdown Mode
中文描述: 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: SO-8
文件頁數(shù): 2/8頁
文件大小: 243K
代理商: LM4871MX
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
Supply Temperature
Input Voltage
Power Dissipation (Note 3)
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
to +0.3V
Internally Limited
5000V
250V
150C
215C
Infrared (15 sec.)
See AN-450
Surface Mounting and their Effects on
Product Reliability
for other methods of
soldering surface mount devices.
θ
JC
(typ)— M08A
θ
JA
(typ)— M08A
θ
JC
(typ)— N08E
θ
JA
(typ)— N08E
220C
35C/W
140C/W
37C/W
107C/W
Operating Ratings
Temperature Range
T
MIN
T
A
T
MAX
Supply Voltage
40C
T
A
85C
2.0V
V
DD
5.5V
Electrical Characteristics
(Notes 1, 2)
The following specifications apply for V
DD
= 5V unless otherwise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4871
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
2.0
5.5
10.0
2
50
1.0
V
DD
Supply Voltage
V (min)
V (max)
mA (max)
μA (max)
mV (max)
W (min)
W
%
I
DD
I
SD
V
OS
P
o
Quiescent Power Supply Current
Shutdown Current
Output Offset Voltage
Output Power
V
IN
= 0V, I
o
= 0A
V
PIN1
= V
DD
V
IN
= 0V
THD = 0.5% (max); f = 1 kHz
THD+N = 10%; f = 1 kHz
P
o
= 1 Wrms; A
VD
= 2; 20 Hz
f
20 kHz
V
DD
= 4.9V to 5.1V
6.5
0.6
5
1.10
1.5
0.25
THD+N
Total Harmonic Distortion+Noise
PSRR
Power Supply Rejection Ratio
65
dB
Note 1:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2:
Absolute Maximum Ratingsindicate limits beyond which damage to the device may occur. Operating Ratingsindicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristicsstate 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
JMAX
,
θ
JA
, and the ambient temperature T
A
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
–T
A
)/
θ
JA
or the number given inAbsolute Maximum Ratings, whichever is lower. For the LM4871, T
JMAX
= 150C. The
typical junction-to-ambient thermal resistance is 140C/W for package number M08A and is 107C/W for package number N08E.
Note 4:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5:
Machine Model, 220 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).
L
www.national.com
2
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