Class 4 12V/2.5A Active Clamp Forward Converter for PoE PD Application Reference Design
Description
This reference design is a Power Over Ethernet (POE) active clamp forward converter. It features the TPS23754: which is a combination of a POE Powered Device (PD) controller and PWM controller. CSD19534Q5A FETs are used for high efficiency synchronous rectification. The input accepts standard Type 2 POE voltage of 42.5VDC-57VDC or a 36VDC-57VDC auxiliary voltage. The output power is an isolated 12VDC at 1.9A with PoE input or 12VDC at 2.5A with auxiliary input.
Features
- Integrated PD and PWM controllerPower conversion efficiency of 92% at full loadLow gate charge MOSFETs for high efficiency synchronous rectificationAuxiliary power input availableTest report includes efficiency: Vout ripple: load step: turn on response: loop stability
Applications
- Data encoder/decoder (signage video transmitter card)
Product Categories
- Power management