GND

GND

GND

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

CRT DRIVER

CH 2

X

IK

OBSOLETE

15A§LM2450

www.ti.com

SNOSAN6D – SEPTEMBER 2005 – REVISED APRIL 2013

LM2450 220V Monolithic Triple Channel 7 MHz DC Coupled CRT DTV Driver

Check for Samples: 15A§LM2450

1

FEATURES

DESCRIPTION

The LM2450 is a triple channel high voltage DC

2

•

7 MHz Bandwidth

coupled CRT driver circuit designed for use in DTV

•

100V Black Level Adjustment Range Using 0V

applications.

The

IC

contains

three

high

input

to 5V Input

impedance, wide band amplifiers which directly drive

•

Current Output for IK Feedback Systems

the RGB cathodes of a CRT. Each amplifier has a

summing input where the DC level of the output is

•

controlled by a low voltage DC input voltage.

•

0V to 5V Input Voltage Range

Normally the DC input voltage is from a DAC. Each

•

Stable with 0 pF–20 pF Capacitive Loads and

channel has its gain internally set to

−54 and can

Inductive Peaking Networks

drive CRT capacitive loads as well as resistive loads

present in other applications, limited only by the

•

Convenient TO-220 Staggered Thin Lead

package's power dissipation.

Package Style

The IC is packaged in a 15-lead TO-220 molded

plastic power package designed specifically to meet

APPLICATIONS

high voltage spacing requirements. See THERMAL

•

DC Coupled DTV Applications Using the 480p

CONSIDERATIONS section.

Format as well as Standard NTSC and PAL

Formats.

Connection Diagram

Figure 1. TO-220 (Top View)

See Package Number NDN

1

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

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PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.