Type 3 IEEE802.3bt-ready active clamp forward converter PoE powered device reference design
TIDA-050045
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Key Document
- Type 3 IEEE802.3bt-ready Active Clamp Forward Converter PoE Powered Device Refe
(PDF 7747 KB)
21 Sep 2020
Description
This TI reference design showcases a Type-3, Class 6, 51-W active clamp forward converter for powered devices (PD) through PoE. The TPS23730 PD controller provides detection and classification while also containing a PWM controller. This design takes in a 37-V to 57-V PoE input, and outputs a 5-V rail for applications such as IP network cameras and wireless access points.
Features
- IEEE802.3bt Type 3 compliant PoE PD
- Integrated PWM controller for flyback or active clamp forward congifuration
- Frequency dithering for EMI reduction
- Soft-start control with advanced startup and hiccup mode overload protection
- Automatic maintain power signature (MPS)
- Soft-stop shutdown
See the Important Notice and Disclaimer covering reference designs and other TI resources.