LM4780TA National Semiconductor, LM4780TA Datasheet - Page 3

• Manufacturer Part Number: LM4780TA
• Description: Audio Power Amplifier IC
• Manufacturer: National Semiconductor

Specifications of LM4780TA

• Amplifier Case Style: TO-220
• Peak Reflow Compatible (260 C): No
• Termination Type: Through Hole
• Leaded Process Compatible: No
• Package / Case: 27-TO-220
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Output Power (typ): 120x1/60x2@8OhmW
• Audio Amplifier Function: Speaker
• Input Offset Voltage: 10mV
• Input Bias Current: 1uA
• Total Harmonic Distortion: 0.03@4Ohm@30W%
• Single Supply Voltage (typ): 18V
• Dual Supply Voltage (typ): ±12/±15/±18/±24/±28V
• Power Supply Requirement: Single/Dual
• Power Dissipation: 125W
• Unity Gain Bandwidth Product (typ): 8MHz
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 120dB
• Single Supply Voltage (min): 20V
• Single Supply Voltage (max): 84V
• Dual Supply Voltage (min): ±10V
• Dual Supply Voltage (max): ±42V
• Operating Temp Range: -20C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 27 +Tab
• Package Type: TO-220
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

|V
A
P
THD+N
X
SR
I
V
I
I
V
PSRR
DD
B
O
M
O
talk
OS
OD
+
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
for T
Supply Voltage |V
Supply Voltage |V
Common Mode Input Voltage
Differential Input Voltage (Note 13)
Output Current
Power Dissipation
ESD Susceptability
ESD Susceptability
| + |V
Symbol
(No Signal)
(Input Signal)
A
-
= 25°C.
|
Power Supply Voltage
(Note
Mute Attenuation
Output Power (RMS)
Total Harmonic Distortion +
Noise
Channel Separation (Note 11)
Slew Rate
Total Quiescent Power
Supply Current
Input Offset Voltage
Input Bias Current
Output Current Limit
Output Dropout Voltage
(Note 12)
Power Supply Rejection Ratio
(Note 15)
+
+
(Note
| + |V
| + |V
(Note
(Note
10)
-
-
|
|
3)
Parameter
4)
5)
+
= +35V, V
Internally Limited
|V
(Note
+
(V
| + |V
(Note
+
GND − V
I
THD+N = 0.5% (max)
f = 1kHz; f = 20kHz
|V
|V
|V
P
A
|V
|V
|V
P
P
V
V
V
V
V
|V
|V
|V
V
V
V
V
MUTE
or V
O
V
O
O
IN
CM
O
CM
CM
+
CM
+
CM
-
1,
+
+
+
+
+
+
+
+
-
-
= −35V, I
| = |V
| = |V
| = |V
| = |V
| = |V
| = |V
| = |V
= 40V to 20V, V
= 40V, V
= 26dB
- V
|
= 30W, f = 20Hz - 20kHz
= 10W, f = 1kHz
= 10W, f = 10kHz
= 0V, I
= 2.0V
- V
1,
≤
Note
= 0V,
= 0V, I
= 0V, I
= 0V, I
= 0V, I
125W
-
3.0kV
200V
) and
= 0mA
O
O
Note
94V
84V
80V
60V
|, V
|, V
-
-
-
-
-
-
-
| = 25V, R
| = 30V, R
| = 35V, R
| = 25V, R
| = 30V, R
| = 35V, R
| = 20V, t
-
2)
O
≥
P-P
-
O
O
+
O
O
= 0A
-
= -28V, I
MUTE
9V
= 28V, I
, t
= -40V to -20V,
= 0mA
= 0mA
= 0mA
= 0mA
RISE
3
Conditions
= -1mA and R
ON
L
L
L
L
L
L
-
Operating Ratings
Note: Operation is guaranteed up to 84V; however, distortion
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.
= 2ns
= -40V,
Junction Temperature (T
Soldering Information
Storage Temperature
Thermal Resistance
θ
θ
Temperature Range
Supply Voltage |V
= 4Ω
= 6Ω
= 8Ω
= 4Ω
= 6Ω
= 8Ω
O
O
= 10ms
TA Package (10 seconds)
T
= -100mA
= +100mA
JA
JC
MIN
≤
T
A
L
≤
= 8Ω unless otherwise specified. Limits apply
T
MAX
+
| + |V
-
JMAX
(Note
|
Typical
0.07
0.05
0.03
11.5
110
110
120
105
0.2
1.6
2.5
18
55
55
60
70
72
19
1
)
(Note
6)
LM4780
(Note
9)
(Note
Note
Limit
1,
−20°C
20V
170
2.0
3.0
20
84
80
50
50
50
10
85
85
8
1
7
Note
-40°C to +150°C
8)
7,
≤
V
≤
2)
TOTAL
T
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A
V/μs (min)
mA (max)
mV (max)
0.8°C/W
≤
μA (max)
dB (min)
dB (min)
dB (min)
30°C/W
(Limits)
V (max)
W (min)
W (min)
W (min)
V (max)
V (max)
V (min)
A (min)
Units
150°C
260°C
+85°C
≤
dB
dB
%
%
%
84V