This data brief introduces the features of the STEVAL-ISA019V3 demonstration board, including a 3-phase 80W auxiliary output SMPS, quasi-resonant SMPS, input 180VAC to 600VAC, output voltage 24V, 3.3A, maximum output power 80W, efficiency > 80%, switching frequency > 50kHz, safety compliant to EN60950, feedback: secondary regulation, RoHS compliant.
The STEVAL-ISA019V3 is a demonstration board designed as a 3-phase auxiliary power supply with an 80 W dual output SMPS. It utilizes the L6565 PWM driver and the STCO4IE170HP ESBT as the main switch to provide a high-efficiency solution for high DC input voltage requirements typical in 3-phase applications. The board employs a flyback stage operating in mixed discontinuous and continuous modes to handle both high output power and a wide input voltage range.
| Output power | 80 W |
|---|---|
| Input voltage | 180 Vac to 600 Vac |
| Output voltage | 24 V |
| Output current | 3.3 A |
| Efficiency | > 80 % |
| Switching frequency | > 50 kHz |
| Safety standard | EN60950 |
| Feedback type | secondary regulation |
The board accepts an AC input ranging from 180 Vac to 600 Vac.
The demonstration board provides a maximum output power of 80 W.