Pin 4 (Dead-Time Control) is critical for preventing "shoot-through" where both output transistors turn on simultaneously, causing a short circuit. Soft Start
If you are comparing two schematics, choose the one that includes: i laj494p schematic better
(often interchangeable with the TL494) is a classic PWM controller used in power supplies. Technical Report: Analysis and Optimization of the I-LAJ494P
The LAJ494P can drive two transistors.
A "better" schematic isn't just about the chip itself; it’s about the supporting components that ensure stability, efficiency, and safety. 1. Precision Dead-Time Control and safety. 1. Precision Dead-Time Control