The LA78145-E is an integrated circuit (IC) component widely used in television sets and monitors. It belongs to the LA78XX series, which contains a variety of ICs for video output applications. Here is an overview and discussion of the key features of the LA78145-E:
1. Function: The LA78145-E is primarily a vertical deflection output IC. It is responsible for vertical deflection and high-frequency vertical oscillation in the CRT (Cathode Ray Tube) display of television and monitor screens.
2. Applications: The IC finds its applications in standard and high-resolution TVs, monitors, and other video display systems where a CRT is used.
3. Power Supply: The LA78145-E requires a supply voltage of 12V to 36V DC for proper functioning. A regulated and well-filtered power supply is recommended to ensure stability and avoid damage to the IC.
4. Output Current Capacity: This IC has a maximum output current capacity of 1.2A, which is sufficient for driving vertical deflection coils used in CRT displays.
5. Thermal Protection: The LA78145-E incorporates a built-in thermal protection circuit that prevents the IC from overheating. This feature contributes to the overall reliability and lifespan of the IC.
6. Sawtooth Waveform Generation: The IC generates the sawtooth waveform required for the vertical deflection system. It provides a stable and precise oscillation frequency to achieve accurate vertical scanning on the display screen
