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LM4782 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM4782
Description  3 Channel 25W Audio Power Amplifier with Mute and Standby
PDF  26 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4782 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage |V
+|+|V-|
(No Signal)
66V
Supply Voltage |V
+|+|V-|
(Input Signal)
64V
Common Mode Input Voltage
(V
+ or V-) and
|V
+|+|V-|
≤ 54V
Differential Input Voltage (Note 13)
54V
Output Current
Internally Limited
Power Dissipation (Note 3)
125W
ESD Susceptability (Note 4)
2.0kV
ESD Susceptability (Note 5)
200V
Junction Temperature (T
JMAX) (Note 9)
150˚C
Soldering Information
TA Package (10 seconds)
260˚C
Storage Temperature
-40˚C to +150˚C
Thermal Resistance
θ
JA
30˚C/W
θ
JC
1.0˚C/W
Operating Ratings (Notes 1, 2)
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−20˚C
≤ T
A
≤ +85˚C
Supply Voltage |V
+|+|V-|
20V
≤ V
TOTAL
≤ 64V
Note: Operation is guaranteed up to 64V; however, distor-
tion may be introduced from SPiKe protection circuitry if
proper thermal considerations are not taken into account.
Refer to the Thermal Considerations section for more
information.
Electrical Characteristics (Notes 1, 2)
The following specifications apply for V
+ = +25V, V- = −25V, and R
L =8
Ω unless otherwise specified. Limits apply for T
A =
25˚C.
Symbol
Parameter
Conditions
LM4782
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
|V
+|+|V-|
Power Supply Voltage (Note
10)
GND−V
-
≥ 9.5V
18
20
64
V (min)
V (max)
V
M
Mute Attenuation
V
MUTE = 2.5V
115
80
dB (min)
P
O
Output Power (RMS)
THD+N = 0.5% (max)
f = 1kHz; f = 20kHz
|V
+|=|V-| = 19V, R
L =4
Ω
|V
+|=|V-| = 22V, R
L =6
Ω
|V
+|=|V-| = 25V, R
L =8
Ω
20
23
25
15
20
20
W (min)
W (min)
W (min)
THD+N
Total Harmonic Distortion +
Noise
P
O = 15W, f = 20Hz - 20kHz
A
V = 26dB
|V
+|=|V-| = 19V, R
L =4
Ω
|V
+|=|V-| = 22V, R
L =6
Ω
|V
+|=|V-| = 25V, R
L =8
Ω
0.4
0.3
0.2
%
%
%
X
talk
Channel Separation (Note 11)
P
O = 10W, f = 1kHz
70
dB
P
O = 10W, f = 10kHz
60
dB
SR
Slew Rate
V
IN = 1.414VRMS,trise = 2ns
18
12
V/µs (min)
I
DD
Total Quiescent Power Supply
Current
V
CM = 0V, VO = 0V, IO =0A
V
STANDBY = GND, Standby = Off
V
STANDBY = 5V, Standby = On
75
8
120
10
mA (max)
mA (max)
V
OS
Input Offset Voltage
V
CM = 0V, IO = 0mA
2.0
15
mV (max)
I
B
Input Bias Current
V
CM = 0V, IO = 0mA
0.2
0.5
µA (max)
I
O
Output Current Limit
|V
+|=|V-| = 10V, t
ON = 10ms, VO = 0V
3.5
2.9
A (min)
V
OD
Output Dropout Voltage (Note
12)
|V
+ -V
O|, V
+ = 20V, I
O = +100mA
|V
O -V
-|, V- = -20V, I
O = -100mA
1.8
2.5
2.3
3.2
V (max)
V (max)
PSRR
Power Supply Rejection Ratio
(Note 15)
V
+ = 25V to 10V, V- = -25V
V
CM = 0V, IO = 0mA
115
85
dB (min)
V
+ = 25V, V- = -25V to -10V
V
CM = 0V, IO = 0mA
110
85
dB (min)
www.national.com
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