LM195/LM395 Ultra Reliable Power Transistors
June 1999
LM195/LM395 Ultra Reliable Power Transistors
General Descripti...
LM195/LM395 Ultra Reliable Power
Transistors
June 1999
LM195/LM395 Ultra Reliable Power
Transistors
General Description
The LM195/LM395 are fast, monolithic power
transistors with complete overload protection. These devices, which act as high gain power
transistors, have included on the chip, current limiting, power limiting, and thermal overload protection making them virtually impossible to destroy from any type of overload. In the standard TO-3
transistor power package, the LM195 will deliver load currents in excess of 1.0A and can switch 40V in 500 ns.
The inclusion of thermal limiting, a feature not easily available in discrete designs, provides virtually absolute protection against overload. Excessive power dissipation or inadequate heat sinking causes the thermal limiting circuitry to turn off the device preventing excessive heating.
The LM195 offers a significant increase in reliability as well as simplifying power circuitry. In some applications, where protection is unusual...