LM2426TE

Monolithic Triple Channel 30 MHz DTV Driver

General Description

The LM2426TE is an integrated high voltage CRT driver

circuit designed for use in HDTV applications. The IC con-

tains three high input impedance, wide band amplifiers

which directly drive the RGB cathodes of a CRT. Each

channel has its gain internally set to −53 and can drive CRT

capacitive loads as well as resistive loads present in other

applications, limited only by the package’s power dissipation.

The IC is packaged in an industry standard 11-lead TO-220

molded plastic power package designed specifically to meet

high voltage spacing requirements. See Thermal Consider-

ations section.

Features

n

0V to 5V input range

n

Greater than 130V

n

Stable with 0–20 pF capacitive loads and inductive

peaking networks

n

Convenient TO-220 staggered thin lead package style

Applications

n

AC coupled HDTV applications using the 1080i and

720p formats as well as standard NTSC and PAL

formats.

Connection Diagram

Schematic Diagram

20066402

Note: Tab is at GND

Top View

Order Number LM2426TE

FIGURE 1. Simplified Connection and Pinout Diagram

20066401

FIGURE 2. Simplified Schematic Diagram

(One Channel)

May 2003

© 2003 National Semiconductor Corporation

DS200664

www.national.com