Summary:
The power supply is an isolated flyback power supply with a TOP258PN device. This design is highly efficient and can operate in high temperature (65 ° C) environments without the need for any external heat sink components.
design feature
- High efficiency under a variety of load conditions
- Works at high ambient temperatures (65 °C)
- P package with a creepage distance/space distance greater than 3.2 mm to ensure reliable operation of the power supply in highly humid and polluted environments
- Integrated safety and reliability:
- Output overvoltage protection can be configured for latching or auto-recovery
- Precise, auto-recovery and hysteretic shutdown with hysteresis to keep PCB temperature within safe conditions under all conditions
- Enters the auto-restart protection state when the output short circuit and the feedback loop open loop
- Conducted EMI limits in accordance with EN55022 and CISPR-22 Class B
Condensing boiler power circuit diagram
See the uploading documentation for details (click to download)
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