ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC DRVR CRT DTV 15MHZ TO220-11
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Applications：CRT Driver
- Output Type：-
- Number of Circuits：-
- Slew Rate：-
- Current - Supply：21 mA
- Current - Output / Channel：-
- Voltage - Supply, Single/Dual (±)：-
- Mounting Type：Through Hole
- Package / Case：TO-220-11 Formed Leads
- Supplier Device Package：TO-220-11
- -3db Bandwidth：-
- Grade：-
- Qualification：-
Download product information
Overview
The LM2423TE/NOPB is a monolithic triple-channel high-voltage CRT driver designed for DTV applications. It features three high input impedance, wideband amplifiers with an internal gain of -54 V/V. The device operates with a supply voltage (VCC) ranging from +100V to +230V and a bias voltage (VBB) from +7V to +13V. It accepts a 0V to 5V input range and provides up to 170VPP output swing with AC coupling. The IC is housed in an 11-lead TO-220 package.
Feature Summary
- Triple channel architecture with fixed internal gain of -54 V/V per channel
- High voltage operation supporting supply voltages up to +230V
- Capable of driving CRT capacitive loads and resistive loads
- Stable performance with capacitive loads up to 20 pF
Applications
- AC coupled DTV applications using the 480p format
- Standard NTSC video format processing
- Standard PAL video format processing
Procurement Notes
Verify the component origin as National Semiconductor, now part of Texas Instruments, due to corporate acquisition history. Confirm the NOPB suffix indicates lead-free plating compliance. Ensure the TE package designation matches the required 11-lead TO-220 staggered thin lead style for proper high voltage spacing. Validate that the specific revision aligns with current datasheet specifications.
Selection Notes
Select this component for designs requiring direct drive of RGB cathodes in CRT displays. The fixed gain simplifies circuit design by eliminating external feedback resistors. Consider thermal management requirements, as the device dissipates significant power at high frequencies. Ensure the application layout supports the necessary bypassing and arc protection components to maintain stability and protect against voltage transients.
Part Context
The LM2423 belongs to a family of high-voltage video drivers intended for television and monitor applications. It replaces discrete amplifier solutions by integrating three channels into a single monolithic die. The device is optimized for digital television signals, providing the necessary bandwidth and voltage swing to interface directly with display tubes without intermediate buffering stages.
Replacement Considerations
Consult the LM242X family datasheets for potential substitutes within the same product line. Verify pin compatibility and electrical characteristics before substituting other members of the series.
