Ilpi354 Va Schematic Upd - 'link'

Decoding the ILPI354 VA: The Quiet Evolution of a Power Delivery Workhorse

| Old Schematic (Pre-2020) | Updated (UPD) Version | |--------------------------|------------------------| | No soft-start circuit | Added C5 (1µF) from COMP to GND for soft-start | | Direct feedback from optocoupler | Series resistor + diode (R14, D7) for better transient response | | Single current sense filter | Dual RC filter (R9-C7 + internal leading-edge blanking) | | 50kHz oscillator | Increased to 65kHz to reduce transformer size |

The Update: What Changed in the Schematic (Rev 2.x)

• Operating Voltage: 10V – 30V DC
• Startup Current: < 1mA (typ. 0.5mA)
• Oscillator Frequency: Fixed 65 kHz or 100 kHz (varies by suffix)
• Duty Cycle Range: 0% – 95%
• Output Current: 1A peak (totem-pole driver)
• Protections: Cycle-by-cycle current limiting, under-voltage lockout (UVLO), thermal shutdown