參數(shù)資料
型號： LM4873MWC
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 1.1 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC
封裝： WAFER
文件頁數(shù)： 24/29頁
文件大小： 1019K
代理商： LM4873MWC
Absolute Maximum Ratings (Note 3)
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 4)
Internally limited
ESD Susceptibility (Note 5)
2000V
ESD Susceptibility (Note 6)
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) — MTC20
20C/W
θ
JA (typ) — MTC20
80C/W
θ
JC (typ) — MXA20A
2C/W
θ
JA (typ) — MXA20A
41C/W (Note 7)
θ
JA (typ) — MXA20A
51C/W (Note 8)
θ
JA (typ) — MXA20A
90C/W (Note 9)
θ
JC (typ) — MXA28A
2C/W
θ
JA (typ) — MXA28A
41C/W (Note 10)
θ
JA (typ) — MXA28A
51C/W (Note 11)
θ
JA (typ) — MXA28A
90C/W (Note 12)
θ
JC (typ) — LQA24A
3.0C/W
θ
JA (typ) — LQA24A
42C/W (Note 13)
θ
JA (typ) — micro SMD
60C/W (Note 14)
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
40C
≤ T
A
≤ 85C
Supply Voltage
2.0V
≤ V
DD
≤ 5.5V
Electrical Characteristics (Notes 3, 15)
The following specifications apply for V
DD= 5V unless otherwise noted. Limits apply for TA= 25C.
Symbol
Parameter
Conditions
LM4873
Units
(Limits)
Typical
Limit
V
DD
Supply Voltage
2
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A (Note 18) , HP-IN = 0V
7.5
15
mA (max)
V
IN = 0V, IO = 0A (Note 18) , HP-IN = 4V
5.8
6
mA (min)
I
SD
Shutdown Current
V
DD applied to the SHUTDOWN pin
0.7
2
A (max)
V
IH
Headphone High Input Voltage
4
V (min)
V
IL
Headphone Low Input Voltage
0.8
V (max)
Electrical Characteristics for Bridged-Mode Operation (Notes 3, 15)
The following specifications apply for V
DD= 5V unless otherwise specified. Limits apply for TA= 25C.
Symbol
Parameter
Conditions
LM4873
Units
(Limits)
Typical
Limit
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV (max)
P
O
Output Power (Note 19)
THD+N = 1%, f = 1kHz (Note 20)
LM4873MTE-1, R
L =3
2.4
W
LM4873MTE, R
L =3
2.2
W
LM4873LQ, R
L =3
2.2
W
LM4873MTE-1, R
L =4
2.1
W
LM4873MTE, R
L =4
1.9
W
LM4873LQ, R
L =4
1.9
W
LM4873MT, R
L =4
1.9
W
LM4873, R
L =8
1.1
1.0
W (min)
LM4873
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