This is a vertical deflection output IC.
Part Number: LA78141, LA78141-E
Function: Vertical Output, Vertical Drive, Pump-up
Package: TO-220-7H Plastic Type
Manufacturer: Sanyo Semiconductor
See the preview image and the PDF file for more information.
Image
Description
The Sanyo LA78141 is an integrated circuit (IC) designed for use in television sets and other video applications. It is a vertical deflection output IC that controls the vertical scanning of the display screen. The device can drive a large deflection coil with a high output current, making it ideal for use in larger displays. Additionally, it has built-in thermal protection and over-current protection, ensuring safe and reliable operation.
The LA78141 is a vertical deflection output IC for high image quality TV and CRT displays that supports the use of a bus control system signal-processing IC.
The sawtooth waveform from the bus control system signal-processing IC can directly drive the deflection yoke (including the DC component). Color TV vertical deflection system adjustment functions can be controlled over a bus system by connecting the LA78141N to a Sanyo LA768X series or LA769XX series bus control system signal-processing IC.
Key Features
- High output current capability → suitable for large CRT displays
- Built-in thermal protection circuit
- Integrated over-current protection
- Supports direct sawtooth waveform input
- Compatible with Sanyo LA768x / LA769xx series system ICs
- High linearity for improved vertical geometry
Specifications
Core Function
- Vertical deflection output amplifier
- Direct drive of vertical deflection yoke (including DC component)
- Interface with bus-controlled video processor ICs
LA78141 Pinout
- Invertin Input
- VCC
- Pump Up Out
- Gnd
- Ver.Out
- Output Stage VCC
- Non Inv.Input Multimedia Misc – Vertical Output IC
Block Diagram
Absolute maximum ratings ( Ta=25°C )
1. Pump-up block supply voltage : +B2 max = 37.5 V
2. Ouput block supply voltage : +B6 max = 77 V
3. Allowalbe power dissipation : pd max = 9 W
LA78141 Application circuits
Advantages
- High current drive capability
- Integrated protection → improved reliability
- Reduced external component count
- Compatible with bus-controlled TV systems
Multimedia Misc – Vertical Output IC
Typical Applications
- CRT televisions (14″ ~ 29″ and above)
- CRT monitors
- Video display systems using analog deflection
- Bus Supported TV Display Vertical Output
Related ICs
- LA78040 (lower power variant)
- LA78145 / LA78141N (package or performance variants)
- TDA8172 / TDA3653 (alternative vertical output ICs)
Related Posts
LA78141 Datasheet PDF
