IC LM2439T LM2439

Product Description

LM2439T - Monolithic Triple 9.5 ns CRT Driver - National Semiconductor

DESCRIPTION

The LM2439 is an integrated high voltage CRT driver circuit

designed for use in color monitor applications. The IC contains

three high input impedance, wide band amplifiers

which directly drive the RGB cathodes of a CRT. Each channel

has its gain internally set to 14 and can drive CRT capacitive

loads as well as resistive loads present in other applications,

limited only by the packages power dissipation.

The IC is packaged in an industry standard 9-lead TO-220

molded plastic power package. See Thermal Considerations

section.

FEATURES

Dissipates approximately 50% less power than the

LM2406

n Well matched with LM1279 video preamp

n 0V to 5V input range

n Stable with 0 pF20 pF capacitive loads and inductive

peaking networks

n Convenient TO-220 staggered lead package style

n Standard LM243X Family Pinout which is designed for

easy PCB layout

APPLICATIONS

n 1024 x 768 Displays up to 70 Hz Refresh

n Pixel clock frequencies up to 75 MHz

n Monitors using video blanking