LM2459 National Semiconductor, LM2459 Datasheet

LM2459

Manufacturer Part Number

LM2459

Description

Monolithic Single Channel 15 MHz DTV CRT Driver

Manufacturer

National Semiconductor

Datasheet

1.LM2459.pdf (11 pages)

Current page: 1 of 11
Download datasheet (579Kb)

LM2459

Monolithic Single Channel 15 MHz DTV CRT Driver

General Description

The LM2459 is a single channel high voltage CRT driver

circuit designed for use in DTV applications. The IC contains

a high input impedance, wide band amplifier which directly

drives the cathode of a CRT. The amplifier has its gain

internally set to −51 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 a staggered 7-lead TO-220 molded

plastic power package designed specifically to meet high

voltage spacing requirements. See Thermal Considerations

section.

Connection Diagram

Note: Tab is at GND

FIGURE 1. Simplified Connection and Pinout Diagram

Order Number LM2459TE

Top View

DS200678

20067802

Features

n 15MHz bandwith at 130V

n 0V to 4V input range

n Greater than 130V

n Stable with 0–20 pF capacitive loads and inductive

n Transient response improvement option via pin 6 (EM)

Applications

n AC coupled DTV applications using the 480p format as

Schematic Diagram

peaking networks

well as standard NTSC and PAL formats.

FIGURE 2. Simplified Schematic Diagram

output swing capability

output swing

www.national.com

May 2004

20067801

Related parts for LM2459

Related keywords

LM2459 datasheet
LM2459 data sheet
LM2459 pdf datasheet
LM2459 component
LM2459 part
LM2459 distributor
LM2459 RoHS
LM2459 datasheet download