參數(shù)資料
型號(hào): LM4902MMX/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 0.675 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: 0.118 INCH, PLASTIC, MSOP-8
文件頁數(shù): 12/18頁
文件大小: 772K
代理商: LM4902MMX/NOPB
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
6.0V
Storage Temperature
65C to +150C
Input Voltage
0.3V to V
DD + 0.3V
Power Dissipation (Note 3)
Internally limited
ESD Susceptibility (Note 4)
2000V
ESD Susceptibility (Note 5)
200V
Junction Temperature
150C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
Thermal Resistance
θ
JC (MSOP)
56C/W
θ
JA (MSOP)
190C/W
θ
JA (LLP)
67C/W
Operating Ratings
Temperature Range
T
MIN ≤ TA ≤ TMAX
40C
≤ T
A ≤ +85C
Supply Voltage
2.0V
≤ V
DD ≤ 5.5V
Electrical Characteristics (Note 1) (Note 2)
The following specifications apply for V
DD = 5V, for all available packages, unless otherwise specified. Limits apply for TA =
25C
Symbol
Parameter
Conditions
LM4902
Units
(Limits)
Typical
Limit
(Notes 7,
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A (Note 8)
4
6.0
mA (max)
I
SD
Shutdown Current
V
PIN1 =GND
0.1
5
A (max)
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV (max)
P
O
Output Power
THD = 1% (max); f = 1kHz; R
L =8;
675
300
mW (min)
THD+N
Total Harmonic Distortion+Noise
P
O = 400 mWrms; AVD =2; RL =8;
20Hz
≤ f ≤ 20kHz, BW < 80kHz
0.4
%
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mV sine p-p
dB
f = 217Hz (Note 10)
70
f = 1KHz (Note 10)
67
f = 217Hz (Note 11)
55
f = 1KHz (Note 11)
55
Electrical Characteristics (Notes 1, 2)
The following specifications apply for V
DD = 3.3V, for all available packages, unless otherwise specified. Limits apply for TA =
25C
Symbol
Parameter
Conditions
LM4902
Units
(Limits)
Typical
Limit
(Notes 7,
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A (Note 8)
3
5
mA (max)
I
SD
Shutdown Current
V
PIN1 = GND
0.1
3
A (max)
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV (max)
P
O
Output Power
THD = 1% (max); f = 1kHz; R
L =8;
265
mW
THD+N
Total Harmonic Distortion+Noise
P
O = 250 mWrms; AVD =2; RL =8;
20Hz
≤ f ≤ 20kHz, BW < 80kHz
0.4
%
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mV sine p-p
dB
f = 217Hz (Note 10)
73
f = 1KHz (Note 10)
70
f = 217Hz (Note 11)
60
f = 1KHz (Note 11)
68
LM4902
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