Summary:
This design uses the TNY280PN's reduced current limit mode to achieve a 5 V, 600 mA wide input voltage range (18 to 265 VAC). Applications for such power supplies include auxiliary power supplies for industrial control.
design feature
- Ultra-wide input voltage range (18 – 265 VAC)
- Extremely energy efficient
- Efficiency is 65%
- Very low no-load power consumption (less than 200 mW at 230 VAC AC input)
- Compliant with CISPR-22/EN55022B conducted EMI limits, EMI margin greater than 10dBμV (see Figure 4)
- Floating current source supplies current to the BP/M pin
- Automatic restart function allows unlimited short-circuit output
Wide range input 5 V, 600 mA power supply circuit diagram
See the uploading documentation for details (click to download)
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