參數(shù)資料
型號(hào)： LM4801MH/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 1.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO28
封裝： 4.40 MM, TSSOP-28
文件頁(yè)數(shù)： 14/20頁(yè)
文件大?。?/td> 725K
代理商： LM4801MH/NOPB
Absolute Maximum Ratings
Stereo Amplifier(Notes 1, 5)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Amplifier Supply Voltage (pins 5, 24)
6.0V
LDO-V
CC, LDO-OUT, LDO-SHDN,
ADJ, CC, FAULT (pins 11-15, 17,19)
0.3V to 6.5V
Fault Sink Current
20mA
Storage Temperature
65C to +150C
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 2)
Internally limited
2000V
ESD Susceptibility (Note 4)
200V
Junction Temperature
150C
Solder Information
Small Outline Package
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
See AN-450 “Surface Mounting and their Effects on
Product Reliablilty” for other methods of soldering
surface mount devices.
Thermal Resistance
θ
JC (typ) — MXA28A
20C/W
θ
JA (typ) — MXA28A (Note 2)
41C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
40C
≤ T
A
≤ 85C
Supply Voltage
Pins 5, 24
3.0V
≤ V
DD
≤ 5.5V
Pin 17
2.5V
≤ V
CC
≤ 6.0V
Stereo Amplifier Electrical Characteristics for Entire IC (Notes 1, 5)
The following specifications apply for V
DD = 5V unless otherwise noted. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4801
Units
(Limits)
Typical
Limit
V
DD
Supply Voltage
3
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A (Note 8)
8
20
3.5
mA (max)
mA (min)
I
SD
Shutdown Current
V
DD applied to the SHUTDOWN pin
0.07
2
A (min)
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV (max)
P
O
Output Power (Note 13)
THD+N = 1%, f = 1kHz, R
L =8
1.1
1.0
W (min)
THD+N = 10%, f = 1kHz, R
L =8
1.5
W
THD+N
Total Harmonic Distortion+Noise
20Hz
≤ f ≤ 20kHz, A
VD =2
R
L =8
,P
O =1W
0.13
%
PSRR
Power Supply Rejection Ratio
V
DD = 5V, VRIPPLE = 200mVRMS,
R
L =8
,C
B = 1.0F
Inputs Floating
Inputs terminated with 10
67
43
dB
X
TALK
Channel Separation
f = 1kHz, C
B = 1.0F
90
dB
SNR
Signal To Noise Ratio
V
DD = 5V, PO = 1W, RL =8
98
dB
LDO Electrical Characteristics
Unless otherwise specified, all limits guaranteed for V
IN =VO +0.5V (Note 10), VSHDN =VIN,CIN =COUT = 2.2F, CCC = 33nF,
T
J = 25C. Boldface limits apply for the operating temperature extremes: 40C and 85C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
IN
Input Voltage
2.5
6.0
V
O
Output Voltage Tolerance
100A
≤ I
OUT
≤ 300mA
V
IN =VO + 0.5V (Note 7)
SET = OUT
-2
+2
%of
V
OUT (NOM)
-3
+3
V
O
Output Adjust Range
1.25
6
V
I
O
Maximum Output Current
Average DC Current Rating
300
mA
I
LIMIT
Output Current Limit
330
770
mA
LM4801
www.national.com
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