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LA7680
8 pdip48 shrink
LA7680
8 pdip48 shrink
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Service & Packaging
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LA7680 DataSheet
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Details
The LA7680 is a vertical output IC (integrated circuit) designed for color television sets. It is commonly used in CRT (cathode ray tube) televisions to drive the deflection yoke and produce the vertical deflection necessary for displaying the image on the screen. The LA7680 features a vertical deflection output circuit, vertical oscillator circuit, sync separator circuit, and a pump-up circuit for maintaining a stable vertical deflection output. It operates on a supply voltage of 12V and can handle currents up to 1.8A. The IC can drive vertical deflection coils with a deflection current of up to 2.2A, making it suitable for use in a wide range of television models.The LA7680 is designed to be a reliable and efficient vertical output IC, with built-in protections such as overcurrent protection and thermal shutdown to prevent damage to the IC and the television set. It also has a built-in pump-up circuit to correct for picture distortion and ensure a stable and clear image on the screen.
Key Features
- Vertical output circuit
- Low power consumption
- Wide operating voltage range (9V - 35V)
- Thermal protection
- Integrated DC control circuit
- Compatible with various video signals
- Supports PAL, NTSC, and SECAM systems
- High reliability and stability
Application
- Television sets
- Monitors
- Video projectors
- DVD players
- Set-top boxes
- Digital cameras
- Video game consoles
- Embedded systems
- Industrial electronics
- Medical equipment
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Rohs Code | No | Part Life Cycle Code | Obsolete |
| Part Package Code | DIP | Pin Count ! | 48 |
| Reach Compliance Code | HTS Code ! | 8542.39.00.01 | |
| Consumer IC Type | CONSUMER CIRCUIT | JESD-30 Code | R-PDIP-T48 |
| JESD-609 Code | e0 | Length | 46 mm |
| Number of Functions | 1 | Number of Terminals | 48 |
| Operating Temperature-Max | 65 °C | Operating Temperature-Min | -10 °C |
| Package Body Material | PLASTIC/EPOXY | Package Code | SDIP |
| Package Equivalence Code | SDIP48,.6 | Package Shape | RECTANGULAR |
| Package Style | IN-LINE, SHRINK PITCH | Power Supplies ! | 9 V |
| Qualification Status ! | Not Qualified | Seated Height-Max | 5.1 mm |
| Supply Current-Max | 140 mA | Supply Voltage-Max (Vsup) | 10 V |
| Supply Voltage-Min (Vsup) | 8 V | Surface Mount ! | NO |
| Technology | BIPOLAR | Temperature Grade ! | COMMERCIAL |
| Terminal Finish | TIN LEAD | Terminal Form ! | THROUGH-HOLE |
| Terminal Pitch ! | 1.778 mm | Terminal Position | DUAL |
| Width | 15.24 mm |
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 LA7680?
The LA7680 is an integrated circuit (IC) chip designed for use in television sets as a vertical deflection output IC. It is commonly used to drive the vertical deflection yoke in CRT (cathode ray tube) televisions, controlling the vertical positioning of the electron beam to display the image on the screen correctly.
How Does LA7680 Work?
The LA7680 works by receiving vertical deflection signals from the TV's circuitry and amplifying them to drive the vertical deflection yoke. By accurately controlling the current flowing through the yoke, the LA7680 ensures that the electron beam moves vertically on the screen at the correct rate, allowing for stable and distortion-free images to be displayed.
How Many Pins does LA7680 have and What are the Functions of the Pinout Configuration?
The LA7680 is typically available in a 9-pin SIP (Single In-line Package) configuration. The pinout configuration includes:
- Vcc: Power supply pin.
- GND: Ground pin.
- SAW: SAW filter (Sound Acoustic Wave) input pin.
- SVCC: Vertical output positive supply pin.
- VSOUT: Vertical output pin of the IC.
- VCC: Output buffer circuit supply pin.
- AGC-IN: Automatic Gain Control input pin.
- DEF: Vertical deflection input pin.
- FB: Feedback input pin.
What are the Pros and Cons of LA7680?
Pros:
- Specific Design: Tailored for vertical deflection applications in CRT TVs, ensuring compatibility and performance.
- Simple Integration: Easy to integrate into TV circuitry for vertical deflection control.
- Cost-Effective: Provides a cost-effective solution for driving the vertical yoke in televisions.
Cons:
- Single Application: Limited to vertical deflection circuitry in CRT TVs, not suitable for other applications.
- Obsolete Technology: With the decline of CRT TVs, the demand and availability of LA7680 ICs may decrease over time.
Are There Any Equivalents/Alternatives to LA7680 for Recommendation?
- Alternatives to the LA7680 include the LA7837 from Sanyo and the AN5522 from Panasonic, which also serve as vertical deflection output ICs in TV applications.
- Equivalent parts to the LA7680 may be found in specific manufacturer catalogs for vertical deflection in CRT TVs.
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