TDA4865AJ Equivalent IC: Pinout, Features, Application and Circuit

The TDA4865AJ is a versatile integrated circuit from NXP Semiconductors, engineered to handle vertical deflection in various display systems, including televisions, monitors, oscilloscopes, projectors, and medical imaging equipment. This IC is designed to provide robust performance with its high output current capability, efficient flyback generation, and precise linear sawtooth signal amplification. With its advanced features and wide operational temperature range, the TDA4865AJ stands out as a reliable choice for applications requiring stable and accurate vertical deflection control.

What is TDA4865AJ

The TDA4865AJ is an integrated circuit developed by NXP Semiconductors, designed specifically for vertical deflection applications in television and monitor systems. It features a power amplifier with differential inputs, capable of delivering high output current up to 3.8 A (peak-to-peak) and supporting vertical deflection frequencies up to 200 Hz. The IC is optimized for linear sawtooth signal amplification and includes an internal flyback generator that simplifies design by internally doubling the supply voltage, eliminating the need for an external flyback supply. The TDA4865AJ operates over a wide temperature range and is housed in a rectangular, flange mount package. It is suitable for use in various applications, including televisions, computer monitors, oscilloscopes, projectors, and medical imaging equipment, where stable and precise vertical deflection is crucial.

Pinout

Pin configuration

The TDA4865AJ pin configuration includes positive supply voltage, flyback generator output, vertical output supply voltage, ground, vertical output, and the inverting and non-inverting inputs of the differential input stage.

TDA4865AJ Equivalent IC

The TDA4865AJ has several equivalent integrated circuits that offer similar functionality and performance. Some of these equivalents include:

TDA4865J: A closely related variant with similar vertical deflection capabilities.

TDA4863AJ: Another option in the same series, providing comparable performance in vertical deflection applications.

TDA4860: A related IC from the same family, offering similar features for vertical deflection.

TDA4862: Provides vertical deflection functions with similar characteristics and performance.

Specifications of TDA4865AJ

• Package Description: Plastic, SOT-524-1, DIL-BENT-SIL, 7 PIN
• REACH Compliance: Yes
• EU RoHS Compliance: Yes
• Product Status: Active
• Type: Vertical Deflection IC
• Blanking Output: Absent
• JESD-30 Code: R-PZFM-T7
• Functions: Single
• Terminals: 7
• Temperature Range: -20.0°C to 75.0°C
• Material: Plastic/Epoxy
• Package Code: ZIP
• Package Equivalence: ZIP7,.2,.1TB
• Shape: Rectangular
• Mounting Style: Flange Mount
• Qualification: Not Qualified
• Category: Other Consumer ICs
• Maximum Supply Current: 60.0 mA
• Supply Voltage Range: 9.0 V to 35.0 V
• Surface Mount Capability: No
• Technology: Bipolar
• Temperature Grade: Commercial Extended
• Terminal Type: Through-Hole
• Pitch: 1.27 mm
• Terminal Layout: Zig-Zag

TDA4865AJ Features and Advantages

Power Amplifier with Differential Inputs: The TDA4865AJ features a robust power amplifier designed for differential signal inputs, ensuring high precision and stability in signal processing.

High Output Current: Capable of delivering an output current up to 3.8 A (peak-to-peak), the TDA4865AJ supports high-demand applications with significant power requirements.

High Vertical Deflection Frequency: The IC supports a vertical deflection frequency of up to 200 Hz, making it suitable for applications requiring rapid image refresh rates.

Enhanced Linear Sawtooth Signal Amplification: It provides superior amplification of linear sawtooth signals, enhancing the quality and accuracy of signal reproduction.

Flyback Generator: Adjustable Flyback Supply Voltage: Unlike the TDA4865J, the TDA4865AJ incorporates an internally doubled supply voltage for flyback generation, optimizing performance for DC-coupled outputs. This internal voltage doubling simplifies design and reduces the need for external adjustments.

TDA4865AJ Application

Television Vertical Deflection Circuits: The TDA4865AJ is ideal for driving the vertical deflection coils in television receivers, providing high current output and precise control for stable image display.

Monitor Deflection Systems: It is used in computer and CRT monitors to manage vertical deflection, ensuring accurate and stable image positioning and refresh rates.

Oscilloscope Vertical Deflection: The IC can be employed in oscilloscopes for vertical deflection, offering high-frequency performance and linear signal amplification for detailed waveform analysis.

Projector Vertical Scanning: In projection systems, the TDA4865AJ manages vertical scanning for projecting stable and clear images onto screens.

Medical Imaging Equipment: The IC is suitable for medical imaging devices that require precise vertical deflection and high current output to ensure accurate imaging and display.

Application Circuit

The TDA4865AJ application circuit requires the IC's heat sink to be isolated from the ground to avoid interference. Key components include capacitor CS2, which optimizes flyback time and noise, and capacitor CF, whose value depends on deflection current and flyback time. Resistor R6 helps manage power dissipation, with its maximum value tailored to the application’s needs.

Internal circuitry

Block Diagram

TDA4865AJ Manufacturer

The TDA4865AJ is an integrated circuit manufactured by NXP Semiconductors, designed primarily for use in television and monitor power management systems. It provides essential functions such as power regulation and control, ensuring that these devices receive stable and reliable power. The TDA4865AJ is engineered to handle high power loads effectively, managing power output and protecting against overcurrent and overvoltage conditions. This enhances the overall performance and reliability of electronic devices. NXP, a leading global semiconductor supplier, is renowned for its innovative technology and high-quality products. It reflects NXP's commitment to delivering efficient and dependable power solutions across a wide range of electronic applications.

Package Dimensions

TDA4863AJ vs TDA4865AJ

The TDA4863AJ and TDA4865AJ are both vertical deflection integrated circuits (ICs) from NXP Semiconductors, with similar operational characteristics and package types but differ in specific features and capabilities. The primary distinctions lie in the package type, blanking output functionality, and maximum supply voltage.

Feature Comparison

How to Choose between TDA4863AJ vs TDA4865AJ

To choose between the TDA4863AJ and TDA4865AJ, consider their key differences. The TDA4865AJ offers a higher maximum supply voltage of 35 V and includes a blanking output, making it more versatile for demanding applications. It also features a flange mount ZIP package and supports a maximum supply current of 60 mA. On the other hand, the TDA4863AJ has a traditional in-line package, does not include a blanking output, and supports up to 30 V supply voltage. Your choice will depend on whether you need the additional features and higher power handling of the TDA4865AJ or if the TDA4863AJ meets your standard requirements.

Conclusion

In summary, the TDA4865AJ integrates essential functionalities for high-performance vertical deflection systems, making it suitable for a range of applications from traditional CRT displays to high-precision medical imaging equipment. Its internal flyback generator and differential input stage enhance design simplicity and signal accuracy. While alternatives like the TDA4865J, TDA4863AJ, TDA4860, and TDA4862 offer similar capabilities, the TDA4865AJ's unique features and reliable performance ensure it remains a valuable component in modern electronic systems. Proper application circuit design and adherence to the IC’s specifications will maximize its effectiveness and longevity in various use cases.

TDA4865AJ

NXP Semiconductors

Specialized ICs

3~7 Days

In Stock：6,382

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