Class 2 Mulitple Output, High Efficiency Flyback Converter for PoE Applications
This reference evaluation module, featuring the TPS23785B PoE interface and DC-toDC contoller, is used for class 2 PoE applications where high effliency and multiple outputs are required.
The flyback converter with synchronous reftifier provides excellent efficiency and small size for PoE applications such as IP phones. The TPS23785B contains both the PoE powered device and the PWM contoller.
- Efficiency achieved >90%
- 1.5% peak to peak cross regulation on 5V
- Isolated multiple output (3.3V at 0.88A; 5V at 0.35A; 10V at 0.11A)
- Uses TPS23785B high-power, high-efficiency PoE PD and DC-to-DC controller
- Small board size
- This circuit design is fully functional and tested and recommended for new design.