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參數(shù)資料
| 型號(hào)： | LM4801 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1W Stereo Audio Amplifier Plus Adjustable LDO |
| 中文描述： | 1W的立體聲音頻放大器以及可調(diào)節(jié)穩(wěn)壓器 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 725K |
| 代理商： | LM4801 |
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)
LDO-V
CC
, LDO-OUT, LDO-SHDN,
ADJ, CC, FAULT (pins 11-15, 17,19)
Fault Sink Current
Storage Temperature
Input Voltage
Power Dissipation (Note 2)
ESD Susceptibility(Note 3)
ESD Susceptibility (Note 4)
Junction Temperature
Solder Information
Small Outline Package
6.0V
0.3V to 6.5V
20mA
65C to +150C
0.3V to V
DD
+0.3V
Internally limited
2000V
200V
150C
Vapor Phase (60 sec.)
Infrared (15 sec.)
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
θ
JA
(typ)—MXA28A (Note 2)
215C
220C
20C/W
41C/W
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
Pins 5, 24
Pin 17
40C
≤
T
A
≤
85C
3.0V
≤
V
DD
≤
5.5V
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 T
A
= 25C.
Symbol
Parameter
Conditions
LM4801
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
3
5.5
20
3.5
2
50
1.0
V
DD
Supply Voltage
V (min)
V (max)
mA (max)
mA (min)
μA (min)
mV (max)
W (min)
W
%
I
DD
Quiescent Power Supply Current
V
IN
= 0V, I
O
= 0A (Note 8)
8
I
SD
V
OS
P
O
Shutdown Current
Output Offset Voltage
Output Power (Note 13)
V
DD
applied to the SHUTDOWN pin
V
IN
= 0V
THD+N = 1%, f = 1kHz, R
L
= 8
THD+N = 10%, f = 1kHz, R
L
= 8
20Hz
≤
f
≤
20kHz, A
VD
= 2
R
L
= 8
, P
O
= 1W
V
DD
= 5V, V
RIPPLE
= 200mV
RMS
,
R
L
= 8
, C
B
= 1.0μF
Inputs Floating
Inputs terminated with 10
f = 1kHz, C
B
= 1.0μF
V
DD
= 5V, P
O
= 1W, R
L
= 8
0.07
5
1.1
1.5
0.13
THD+N
Total Harmonic Distortion+Noise
PSRR
Power Supply Rejection Ratio
67
43
90
98
dB
dB
dB
dB
X
TALK
SNR
Channel Separation
Signal To Noise Ratio
LDO Electrical Characteristics
Unless otherwise specified, all limits guaranteed for V
= V
+0.5V (Note 10), V
= V
IN
, C
IN
= C
OUT
= 2.2μF, C
CC
= 33nF,
T
J
= 25C.
Boldface
limits apply for the operating temperature extremes: 40C and 85C.
Symbol
Parameter
Conditions
Min
(Note 7)
2.5
-2
Typ
(Note 6)
Max
(Note 7)
6.0
+2
Units
V
IN
Input Voltage
V
V
O
Output Voltage Tolerance
100μA
≤
I
OUT
≤
300mA
V
IN
= V
O
+ 0.5V (Note 7)
SET = OUT
% of
V
OUT (NOM)
-3
+3
V
O
I
O
I
LIMIT
Output Adjust Range
Maximum Output Current
Output Current Limit
1.25
300
330
6
V
Average DC Current Rating
mA
mA
770
L
www.national.com
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