IC TEA2029

IC TEA2029 Color TV Scanning and Power Supply Processor – Description, Features & Uses of IC TEA2029

The IC TEA2029 is a highly integrated Color TV scanning and switch mode power supply (SMPS) processor IC developed by STMicroelectronics. It is specially designed for CRT television circuits, combining horizontal scanning, vertical deflection, synchronization, and SMPS control into a single chip. This makes it a reliable solution for repairing and maintaining older TV main boards and display control circuits.

The TEA2029 uses an internal 500kHz voltage-controlled oscillator (VCO) with a ceramic resonator, eliminating the need for frequent line and frame oscillator adjustments. It supports dual PLL horizontal scanning, ensuring excellent line stability, better interlacing, and smooth synchronization even with weak video signals. The IC also includes automatic 50Hz/60Hz system detection, making it suitable for multiple television standards.

One of the major advantages of the TEA2029 IC is its built-in SMPS error amplifier and phase modulator, which helps regulate the television’s power supply efficiently. It can synchronize directly with primary-side SMPS controller ICs like TEA2260 / TEA2261, improving power stability and reducing transformer size in CRT TVs.

Key Features of IC TEA2029

• Integrated horizontal and vertical scanning processor
• Built-in SMPS control circuit
• 500kHz VCO frequency reference
• Dual PLL line synchronization
• Automatic 50/60Hz video identification
• Super sandcastle output
• AGC key pulse output
• Excellent noise immunity
• DIP-28 package
• Ideal for CRT TV repairing and replacement

Applications of IC TEA2029

• CRT color television repair
• TV power supply section troubleshooting
• Horizontal and vertical deflection circuits
• Video synchronization systems
• Old television motherboard servicing
• Electronics repair workshops

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