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TDA4867
Full bridge current driven vertical deflection booster
TDA4867
Full bridge current driven vertical deflection booster
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Service & Packaging
Service & Packaging
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TDA4867 DataSheet
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Details
GENERAL DESCRIPTION The TDA4867J is a power booster for use in colour vertical deflection systems for frame frequencies of 50 to 200 Hz. The circuit provides a high CMRR current driven differential input. Due to the bridge configuration of the two output stages DC-coupling of the deflection coil is achieved. In conjunction with the deflection controller family TDA485x and SAA4856 the ICs offer an extremely advanced system solution.FEATURES • Fully integrated, few external components • Maximum 2.5 A (p-p) deflection current • No additional components in combination with the deflection controller family TDA485x and SAA4856 • Pre-amplifier with differential high CMRR current mode inputs • Low offsets • High linear sawtooth signal amplification • High efficient DC-coupled vertical output bridge circuit • High deflection frequency up to 200 Hz • Power supply and flyback supply voltage independent adjustable to optimize power consumption and flyback time • Excellent transition behaviour during flyback • Guard circuit for screen protection • Power save mode controlled by input pins (in combination with SAA4856 only) or guard pin.
Key Features
- Fully integrated, few external components
- Maximum 2.5 A (p-p) deflection current
- No additional components in combination with the deflection controller family TDA485x and SAA4856
- Pre-amplifier with differential high CMRR current mode inputs
- Low offsets
- High linear sawtooth signal amplification
- High efficient DC-coupled vertical output bridge circuit
- High deflection frequency up to 200 Hz
- Power supply and flyback supply voltage independent adjustable to optimize power consumption and flyback time
- Excellent transition behaviour during flyback
- Guard circuit for screen protection
- Power save mode controlled by input pins (in combination with SAA4856 only) or guard pin.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | PHILIPS | Product Category ! | IC Chips |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is TDA4867?
The TDA4867 is a versatile combination of a vertical deflection output circuit, an amplifier, and a vertical centering circuit, designed for use in CRT-display applications. It is commonly used in television sets and CRT monitors to control the vertical deflection of the electron beam.
How Does TDA4867 Work?
The TDA4867 works by amplifying and shaping the vertical synchronization signal to drive the vertical deflection yoke in a CRT display. It controls the vertical position of the electron beam on the screen by adjusting the current flow through the deflection yoke, allowing for smooth and accurate vertical scanning.
How Many Pins does TDA4867 have and What are the Functions of the Pinout Configuration?
The TDA4867 is housed in a multiwatt11 package. The pinout configuration includes:
- 1: Vertical output.
- 2: Non-inverting input of the vertical amplifier.
- 3: Inverting input of the vertical amplifier.
- 4: Vertical slope control.
- 5: Vertical centering.
- 6: Vertical slope modulation.
- 7: Vertical output stage supply voltage.
- 8: Vertical output stage supply voltage.
- 9: Vertical flyback generator output.
- 10: Positive supply voltage.
- 11: Ground.
What are the Pros and Cons of TDA4867?
Pros:
- Integrated Solution: Combines vertical deflection and centering functions in a single chip.
- Easy to Use: Simplifies vertical deflection circuit design in CRT displays.
- Reliability: Designed for long-term operation in CRT-based systems.
Cons:
- Obsolete Technology: TDA4867 may not be readily available due to advancements in display technologies.
- Limited Applications: Primarily suitable for CRT displays, which are being replaced by newer display technologies.
Are There Any Equivalents/Alternatives to TDA4867 for Recommendation?
- Alternatives to the TDA4867 include the LA7845 from Sanyo and the STV9302A from STMicroelectronics.
- Equivalent parts to the TDA4867 may be found in the vertical deflection IC category for CRT displays.
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