DESCRIPTION

· The LM195/LM395 are fast, monolithic power integrated circuits with complete overload protection.
· These devices act as high-gain power transistors with on-chip current limiting, power limiting, and thermal overload protection.
· Available in standard TO-3, Kovar TO-5, and TO-220 packages.
· The LM195 is rated for operation from -55°C to +150°C, and the LM395 from 0°C to +125°C.
· Delivers load currents in excess of 1.0A and can switch 40V in 500ns.
· Thermal limiting provides absolute protection against overload, turning off the device to prevent excessive heating.
· Simplifies power circuitry and increases reliability, especially in applications like switching regulators and lamp or solenoid drivers.
· Requires minimal precautions, such as inserting a 5.0k resistor in series with the base lead to prevent emitter follower oscillations and ensuring supply bypassing for good high-frequency response.

FEATURES

· Internal thermal limiting.
· Greater than 1.0A output current.
· 3.0μA typical base current.
· 500ns switching time.
· 2.0V saturation.
· Base can be driven up to 40V without damage.
· Directly interfaces with CMOS or TTL.
· 100% electrical burn-in.

APPLICATIONS

· Switching regulators.
· Lamp drivers.
· Solenoid drivers.
· Low-power applications (under 100mA) with the LP395 Ultra Reliable Power Transistor.