Summary:
Way of working
The TOP245P design is ideal for DVD and set-top box applications. The P package eliminates the need for a heat sink and provides 20 W/peak 25 W output power at 50 °C ambient temperature.
design feature
- Simple, low-cost, less component-based solution
- No need for a radiator
- Very low EMI – frequency modulation allows a simple EMI filter to meet EN55022B/FCC B requirements
- High efficiency, greater than 75% efficiency at 90 VAC input
- Very low no-load power consumption, less than 100 mW at 230 VAC input
- Very low standby power consumption, input power less than 1 W at 230 VAC input 0.5 W load
- Excellent cross adjustment rate
- Differential mode and common mode surge withstand up to 3 kV (EN 61000-4-5 standard)
20W multi-output DVD power supply circuit diagram
See the PDF document for details (click on the PDF file to download)
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