LM3886 High-Performance 68W Audio Power Amplifier w Mute

Absolute Maximum Ratings (Notes 1 2)
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage lV a l a lV b l (No Signal)
94V
Supply Voltage lV a l a lV b l (Input Signal)
84V
Common Mode Input Voltage
Differential Input Voltage (Note 12)
Output Current
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
Junction Temperature (Note 5)
(V a or V b ) and
lV a l a lV b l s 80V
60V
Internally Limited
125W
3000V
150C
Soldering Information
T Package (10 seconds)
Storage Temperature
Thermal Resistance
i JC
i JA
Operating Ratings (Notes 1 2)
Temperature Range
T MIN
s T A
s T MAX
Supply Voltage lV a l a lV b l
260C
b40Ctoa150C
1CW
43CW
b20C s T A
s a85C
20V to 84V
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
(See SPiKeTM Protection Response)
Electrical Characteristics (Notes 1 2) The following specifications apply for V a ea28V V b eb28V
I MUTE eb05 mA with R L e 4X unless otherwise specified Limits apply for T A e 25C
Symbol Parameter Conditions
LM3886
Typical Limit
(Note 6) (Note 7)
Units
(Limits)
lV a l a lV b l Power Supply Voltage (Note 10) V pin7 b V b t 9V 18 20 V (min)
84 V (max)
A M Mute Attenuation Pin 8 Open or at 0V Mute On
Current out of Pin 8 l 05 mA 115 80 dB (min)
Mute Off
P O Output Power (Continuous Average) THD a N e 01% (max)
f e 1 kHz f e 20 kHz
lV a l e lV b l e 28V R L e 4X 68 60 W (min)
lV a l e lV b l e 28V R L e 8X 38 30 W (min)
e 8X 50 W
lV a l e lV b l e 35V R L
Peak P O Instantaneous Peak Output Power 135 W
THD a N Total Harmonic Distortion Plus Noise 60W R L e 4X 003 %
30W R L e 8X 003 %
20 Hz s f s 20 kHz
A V e 26 dB
SR Slew Rate (Note 9) V IN e 20Vp-p t RISE e 2ns 19 8 Vms (min)
I a Total Quiescent Power Supply Current V CM e 0V V o e 0V I o e 0A 50 85 mA (max)
V OS Input Offset Voltage V CM e 0V I o e 0 mA 1 10 mV (max)
I B Input Bias Current V CM e 0V I o e 0 mA 02 1 mA (max)
I OS Input Offset Current V CM e 0V I o e 0 mA 001 02 mA (max)
I o Output Current Limit lV a l e lV b l e 20V t ON e 10 ms V O e 0V 115 7 A (min)
V od Output Dropout Voltage (Note 11) lV a –V OlV a e28V I o ea100 mA 16 20 V (max)
lV O –V b lV b eb28V I o eb100 mA 25 30 V (max)
PSRR Power Supply Rejection Ratio V a e 40V to 20V V b eb40V 120 85 dB (min)
V CM e 0V I o e 0mA
V a e40V V b eb40V to b20V 105 85 dB (min)
V CM e 0V I o e 0mA
DC Electrical Test refer to Test Circuit 1
AC Electrical Test refer to Test Circuit 2
2