LM3875TF National Semiconductor, LM3875TF Datasheet - Page 3

• Manufacturer Part Number: LM3875TF
• Description: Audio Power Amplifier IC
• Manufacturer: National Semiconductor

Specifications of LM3875TF

• Amplifier Case Style: TO-220
• No. Of Pins: 11
• Peak Reflow Compatible (260 C): No
• Termination Type: Through Hole
• Supply Voltage Max: 84V
• Leaded Process Compatible: No
• Mounting Type: Through Hole
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 56x1@8OhmW
• Audio Amplifier Function: Speaker
• Input Offset Voltage: 10@±35VmV
• Input Bias Current: 1uA
• Total Harmonic Distortion: 0.06@8Ohm@40W%
• Single Supply Voltage (typ): 24/28V
• 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: 11 +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
**P
Peak P
THD + N
**SR
*I+
*V
I
I
I
*V
*PSRR
*CMRR
*A
GBWP
**e
B
OS
o
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.
OS
od
VOL
Supply Voltage |V
Supply Voltage |V
Signal)
Common Mode Input Voltage
Differential Input Voltage
Output Current
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
Junction Temperature (Note 5)
Soldering Information
IN
| + |V
O
T package (10 seconds)
O
−
|
Power Supply Voltage
Output Power (Continuous Average)
Instantaneous Peak Output Power
Total Harmonic Distortion Plus Noise
Slew Rate (Note 9)
Total Quiescent Power Supply
Current
Input Offset Voltage
Input Bias Current
Input Offset Current
Output Current Limit
Output Dropout Voltage
Power Supply Rejection Ratio
Common Mode Rejection Ratio
Open Loop Voltage Gain
Gain-Bandwidth Product
Input Noise
+
+
| + |V
| + |V
Parameter
−
−
| (No Signal)
| (Input
+
= +35V, V
Internally Limited
|V
(Notes 1, 2)
+
(V
| + |V
+
(Notes 1,
or V
−
THD + N = 0.1% (Max)
f = 1 kHz, f = 20 kHz
40W, 20 Hz ≤ f ≤ 20 kHz
A
V
Square-wave, R
V
V
V
V
|V
|V
|V
V
V
V
V
V
V
|V
|V
f
IHF − A Weighting Filter
R
O
−
| ≤ 80V
V
IN
CM
CM
CM
CM
+
cm
+
cm
+
cm
IN
2500V
+
+
o
+
+
−
150˚C
260˚C
125W
= −35V with R
= 100 kHz, V
−V
) and
| = |V
−V
| = |V
| = |V
= 40V to 20V, V
= 40V, V = −40V to −20V,
= 60V to 20V, V
= 26 dB
= 1.414 Vrms, f = 10 kHz
= 600Ω (Input Referred)
94V
84V
60V
= 0V, I
= 0V, I
= 20V to −20V, I
= 0V, V
= 0V, I
= 0V, I
= 0V, I
o
−
−
|, V
|, V
−
−
−
| = 10V, t
| = 40V, R
| = 40V
−
+
o
o
o
o
o
= −20V, I
O
3
= 20V, I
= 0 mA
= 0 mA
= 0 mA
= 0 mA
= 0 mA
= 0V, I
IN
L
Operating Ratings
Conditions
Note: Operation is guaranteed up to 84V, however, distortion may be intro-
duced from the SPiKe Protection Circuitry when operating above 70V if
proper thermal considerations are not taken into account. Refer to the
Thermal Considerations section for more information. (See SPiKe Protection
Response)
L
Storage Temperature
Thermal Resistance
Temperature Range
Supply Voltage |V
= 2 kΩ
= 50 mVrms
= 8Ω unless otherwise specified. Limits apply for T
on
−
−
θ
θ
T
L
JC
JA
o
MIN
= −40V,
= −20V to −60V,
o
o
o
= 10 ms, V
= 2 kΩ, ∆V
= +100 mA
= 0 mA
= −100 mA
= 0 mA
≤ T
A
≤ T
O
O
MAX
= 0V
= 60V
+
| + |V
−
|
(Note 6)
Typical
(Notes 1, 2)
0.06
0.01
100
120
120
120
120
0.2
1.6
2.7
2.0
56
11
30
1
6
8
LM3875
(Note 7)
−40˚C to +150˚C
Limit
0.2
8.0
20
84
40
70
10
85
85
80
90
5
1
4
5
5
2
−20˚C ≤ T
20V to 84V
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43˚C/W
mA (Max)
mV (Max)
µA (Max)
µA (Max)
µV (Max)
dB (Min)
dB (Min)
dB (Min)
1˚C/W
+85˚C
(Limits)
V (Max)
W (Min)
V (Max)
V (Max)
A
V (Min)
A(Min)
Units
(Min)
(Min)
MHz
=
V/µs
A
W
%
≤