LM3875 Datasheet, PDF (4/29 Pages) National Semiconductor (TI) – OverturTM Audio Power Amplifier Series High-Performance 56W Audio Power Amplifier

LM3875
SNAS083D – JUNE 1999 – REVISED APRIL 2013
www.ti.com
Absolute Maximum Ratings^(1)(2)(3)
Supply Voltage |V⁺| + |V^−| (No Signal)
Supply Voltage |V⁺| + |V^−| (Input Signal)
Common Mode Input Voltage
94V
84V
(V⁺ or V^−) and |V⁺| + |V^−| ≤ 80V
Differential Input Voltage
60V
Output Current
Power Dissipation⁽⁴⁾
ESD Susceptibility⁽⁵⁾
Junction Temperature⁽⁶⁾
Internally Limited
125W
2500V
150°C
Soldering Information T package (10 seconds)
260°C
Storage Temperature
−40°C to +150°C
Thermal Resistance
θ_JC
θ_JA
1°C/W
43°C/W
(1) All voltages are measured with respect to supply GND, unless otherwise specified.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(4) For operating at case temperatures above 25°C, the device must be derated based on a 150°C maximum junction temperature and a
thermal resistance of θ_JC = 1.0°C/W (junction to case). Refer to the Thermal Resistance figure in the Application Information section
under THERMAL CONSIDERATIONS.
(5) Human body model, 100 pF discharged through a 1.5 kΩ resistor.
(6) The operating junction temperature maximum is 150°C, however, the instantaneous Safe Operating Area temperature is 250°C.
Operating Ratings^(1)(2)(3)
Temperature Range (T_MIN ≤ T_A ≤ T_MAX)
Supply Voltage |V⁺| + |V^−|
−20°C ≤ T_A ≤ +85°C
20V to 84V
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(2) All voltages are measured with respect to supply GND, unless otherwise specified.
(3) Operation is ensured up to 84V, however, distortion may be introduced 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)
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