Texas Instruments LM2451
The LM2451 is a triple channel high voltage DC coupled CRT driver circuit designed for use in DTV applications. The IC contains three high input impedance, wide band amplifiers which directly drive 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.| Part No. | LM2451 |
|---|---|
| Datasheet | LM2451 Download |
| Manufacturer |  Texas Instruments |
| Description | 220V Monolithic Triple Channel 12-MHz DC Coupled CRT DTV Driver |
| Buy | Stock & Price |
FEATURES
1●2 12 MHz bandwidth at 130VP-P
● 100V black level adjustment range using 0V to 5V input
● Current output for IK feedback systems
● Greater than 130VP-P output swing capability
● 0V to 5V input voltage range
● Stable with 0 pF–20 pF capacitive loads and inductive peaking networks
● Convenient TO-247 staggered thin lead package style
APPLICATIONS
● DC coupled DTV applications using the 480p format as well as standard NTSC and PAL formats.DESCRIPTION
Normally the DC input voltage is from a DAC. Each channel has its gain internally set to −54 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 15-lead TO-247 molded plastic power package designed specifically to meet high voltage spacing requirements. See Thermal Considerations section. Connection Diagram VCC 15 14 VBB 13 CRT DRIVER CH 2 12 11 10 9 8 7 X 6 5 4 3 2 1 Figure 1. Top View VOUT1 VOUT2 VOUT3 VCC GND GND GN...
