Summary:
The DPA-Switch greatly simplifies the design compared to using a separate device design. Resistor R1 sets the input under/overvoltage so that the maximum duty cycle decreases linearly with the input voltage to prevent saturation of the core during transient loading.
design feature
- Low cost 400 kHz flyback design
- ±12 V output accuracy is ±5%
- High efficiency diode rectification design - 80% efficiency at 48 V input
- Small number of components
- Precise line voltage OV and UV protection
- Overheat, short circuit and output overload protection
- Currentless sensing element
19.2W DC-DC converter circuit diagram using DPA425R
See the uploading documentation for details (click to download)
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