參數(shù)資料
型號： LM4851ITL/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 1.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PBGA18
封裝： MICRO SMD-18
文件頁數(shù)： 16/22頁
文件大小： 1126K
代理商： LM4851ITL/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
ESD Susceptibility (Note 4)
2.0kV
ESD Machine model (Note 7)
200V
Junction Temperature (T
J)
150C
Solder Information (Note 1)
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
Thermal Resistance
θ
JA (typ) - LQA24A
42C/W
θ
JC (typ) - LQA24A
3.0C/W
θ
JA (typ) - BLA18AAB
48C/W (Note 9)
θ
JC (typ) - BLA18AAB
23C/W (Note 9)
θ
JA (typ) - TLA18AAA
48C/W (Note 9)
θ
JC (typ) - TLA18AAA
23C/W (Note 9)
Operating Ratings (Note 3)
Temperature Range
40C to 85C
Supply Voltage V
DD
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 2, 8)
The following specifications apply for V
DD= 5.0V, TA= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4851
Units
(Limits)
Typical
Limit
I
DD
Supply Current
Output mode 7
V
IN = 0V; IO =0A
7.5
14
mA (max)
Output modes 1, 2, 3, 4, 5, 6
V
IN = 0V; IO =0A
5.0
9.0
mA (max)
I
DD
Shutdown Current
Output mode 0
0.1
2
A (max)
V
OS
Output Offset Voltage
V
IN = 0V
5.0
50
mV (max)
P
O
Output Power
SPKR
OUT;RL =4
THD+N = 1%; f = 1kHz
LM4851LQ
1.5
W
SPKR
OUT;RL =8
THD+N = 1%; f = 1kHz
1.1
0.8
W (min)
R
OUT and LOUT;RL =32
THD+N = 0.5%; f = 1kHz
115
80
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
R
OUT and LOUT; f = 1kHz
P
OUT = 80mW; RL =32
0.5
% (max)
SPKR
OUT; f = 1kHz
P
OUT = 800mW; RL =8
1.0
% (max)
R
OUT and LOUT; f = 20Hz to 20kHz
P
OUT = 100mW; RL =32
0.3
%
SPKR
OUT; f = 20Hz to 20kHz
P
OUT = 1W; RL =4
LM4851LQ
0.3
%
SPKR
OUT; f = 20Hz to 20kHz
P
OUT = 800mW; RL =8
0.3
%
N
OUT
Output Noise
A-weighted (Note 10)
29
V
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mVPP; f = 217Hz
Input floating; Input referred
70
dB
V
RIPPLE = 200mVPP; f = 217Hz
Input terminated into 50
; Output referred
62
dB
V
IH
Logic High Input Voltage
1.4
5.0
V (min)
V (max)
V
IL
Logic Low Input Voltage
0.4
V (max)
LM4851
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