參數(shù)資料
型號(hào)： LM4855
廠商： National Semiconductor Corporation
元件分類： 運(yùn)動(dòng)控制電子
英文描述： Boomer AUDIO POWER AMPLIFIER Integrated Audio Amplifier System
中文描述： Boomer音頻功率放大器集成音頻放大器系統(tǒng)
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 1116K
代理商： LM4855
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
Supply Voltage
Storage Temperature
ESD Susceptibility (Note 4)
ESD Machine model (Note 7)
Junction Temperature (T
J
)
Solder Information (Note 1)
Vapor Phase (60 sec.)
Infrared (15 sec.)
Thermal Resistance
6.0V
65C to +150C
2.0kV
200V
150C
215C
220C
θ
JA
(typ) - LQA24A
θ
JC
(typ) - LQA24A
θ
JA
(typ) - BLA18AAB
θ
JC
(typ) - BLA18AAB
θ
JA
(typ) - TLA18AAA
θ
JC
(typ) - TLA18AAA
42C/W
3.0C/W
48C/W (Note 9)
23C/W (Note 9)
48C/W (Note 9)
23C/W (Note 9)
Operating Ratings
(Note 3)
Temperature Range
Supply Voltage V
DD
40C to 85C
2.6V
≤
V
DD
≤
5.0V
Note 1:
See AN-450 "Surface Mounting and their effects on Product Reli-
ability" for other methods of soldering surface mount devices.
Electrical Characteristics
(Notes 3, 8)
The following specifications apply for V
DD
= 5.0V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4855
Units
(Limits)
Typical
(Note 5)
Limits
(Note 6)
I
DD
Supply Current
Output mode 1
V
IN
= 0V; No loads
Output mode 1
V
IN
= 0V; Loaded (Fig.1)
Output modes 2, 3, 4, 5, 6, 7
V
IN
= 0V; No loads
Output modes 2, 3, 4, 5, 6, 7
V
IN
= 0V; Loaded (Fig. 1)
Output mode 0
V
IN
= 0V
SPKR
OUT
; R
L
= 4
THD+N = 1%; f = 1kHz, LM4855LQ
SPKR
OUT
; R
L
= 8
THD+N = 1%; f = 1kHz
R
OUT
and L
OUT
; R
L
= 32
THD+N = 0.5%; f = 1kHz
SPKR
OUT
f = 20Hz to 20kHZ
P
OUT
= 400mW; R
L
= 8
R
OUT
and L
OUT
f = 20Hz to 20kHZ
P
OUT
= 50mW; R
L
= 32
A-weighted (Note 10)
5.7
8
mA (max)
6.7
9
mA (max)
7.5
11
mA (max)
8.5
12
mA (max)
I
SD
V
OS
Shutdown Current
Output Offset Voltage
0.1
5.0
2.0
40
μA (max)
mV (max)
P
O
Output Power
1.5
W
1.1
0.8
W (min)
115
70
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
0.5
%
0.5
%
N
OUT
Output Noise
29
μV
L
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