Tl494 Circuit Diagram Exclusive File
What is TL494?
If the output drops, the TL494 increases the PWM duty cycle to compensate. 4. Output Configuration (Pins 8, 9, 10, & 11) The TL494 has two internal transistors. tl494 circuit diagram
The TL494 is equivalent to the following devices: What is TL494
Component List:
- 0V on Pin 4: Maximum duty cycle of ~96%. In a push-pull topology, this leaves 4% dead time. This is often too low.
- Recommended: A voltage divider from REF (5V) to GND using a 10k potentiometer to Pin 4. Adjust for 1V to 3V. At 1.5V, you get roughly 15% dead time. This ensures your transformer or half-bridge MOSFETs never cross-conduct.