LM4731 National Semiconductor, LM4731 Datasheet - Page 3

• Manufacturer Part Number: LM4731
• Description: Stereo 25W Audio Power Amplifier with Mute and Standby Modes
• Manufacturer: National Semiconductor

|V
A
P
THD+N
X
SR
I
V
I
PSRR
A
e
Standby
Mute
DD
B
IN
M
O
talk
OS
VOL
Symbol
+
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
The following specifications apply for V
25˚C.
V
V
Supply Voltage |V
Common Mode Input Voltage
Differential Input Voltage
Output Current
Power Dissipation (Note 3)
ESD Susceptability (Note 4)
ESD Susceptability (Note 6)
Junction Temperature (T
| + |V
IL
IH
-
|
Power Supply Voltage (Note 10) GND − V
Mute Attenuation
Output Power (RMS)
Total Harmonic Distortion +
Noise
Channel Separation
Slew Rate (Note 11)
Total Quiescent Power Supply
Current
Input Offset Voltage
Input Bias Current
Power Supply Rejection Ratio
Open Loop Voltage Gain
Input Noise
Standby Low Input Voltage
Standby High Input Voltage
+
| + |V
Parameter
-
JMAX
|
) (Note 9)
+
= +22V, V
Internally Limited
(Notes 1, 2)
THD+N = 10% (max), f = 1kHz
|V
|V
THD+N = 1% (max), f = 1kHz
|V
|V
P
A
|V
|V
P
f = 1kHz
f = 10kHz
V
V
Standby off (Play Mode)
Standby on (Standby Mode)
V
V
V
wave
Inputs terminated to GND
R
IHF — A-Weighting Filter
R
Not in Standby Mode (Play)
In Standby Mode
O
V
O
IN
CM
CM
CM
RIPPLE
L
IN
+
+
+
+
+
+
(Notes 1,
| = |V
| = |V
| = |V
| = |V
| = |V
| = |V
= 26dB,
= 2 kΩ, ∆ V
= 1W, f = 1kHz
= 10W
= 2.0V
= 600Ω (Input Referred)
= 0V, V
= 0V, I
= 0V, I
V
-
+
150˚C
2.0kV
= −22V and R
250V
-
= 1V
or V
-
-
-
-
-
50W
-
| = 18V, R
| = 18V, R
| = 22V, R
| =18V, R
| = 22V, R
| = 22V, R
56V
56V
≥ 9V
p-p
O
O
O
-
, t
RMS
= 0 mA
= 0 mA
= 0V, I
Conditions
rise
O
, f
= 20V
3
L
= 2ns
RIPPLE
L
L
L
L
L
= 4Ω
= 4Ω
= 4Ω
= 8Ω
= 8Ω
= 8Ω
O
Operating Ratings
L
Soldering Information
Storage Temperature
Thermal Resistance
Temperature Range
Supply Voltage |V
= 8Ω unless otherwise specified. Limits apply for T
= 0A
T Package (10 sec.)
θ
θ
T
JA
JC
= 120Hz sine
MIN
(TA)
(TA)
≤ T
A
≤ T
MAX
+
| + |V
(Note 6)
Typical
0.03
0.02
110
4.8
2.0
0.2
2.0
2.0
-
85
25
25
20
20
65
60
18
95
50
|
LM4731
(Notes 1, 2)
(Notes 7, 8)
Limit
110
0.5
0.3
0.8
2.5
20
56
20
22
18
18
15
20V ≤ V
−20˚C ≤ T
6
8
−40˚C to +150˚C
TOTAL
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A
mA (max)
mA (max)
mV (max)
µV (max)
% (max)
% (max)
(Limits)
1.5˚C/W
V (max)
W (min)
W (min)
W (min)
W (min)
V (max)
≤ +85˚C
V (min)
V (min)
43˚C/W
Units
V/µs
260˚C
≤ 56V
A
dB
dB
dB
µA
dB
dB
=