Power Integrations offers a range of highly integrated, low-voltage (DC-to-DC) conversion ICs for cost effective power conversion. Each IC includes a 220 V power MOSFET combined with control and protection circuitry on a single chip. Features include current limiting and thermal shutdown with automatic fault recovery capability to improve reliability. DPA-Switch devices easily accommodate the input voltage requirements for IEEE802.3af Power over Ethernet. The family includes four different MOSFET sizes and three package options to provide the most cost effective solution for each Class of PD. The family is also capable of supporting higher power devices for the IEEE802.3at PoEP standard.
|Lowered Overvoltage for PoE (Multi-class)|
|Undervoltage with Wide Hysteresis (Multi-class)|
|Power over Ethernet Power Supply (Multi-class)||DAK-86|
|Ethernet Hub (Class 0)||DAK-68A|
|DC-DC Converter (Multi-class)|
|PoE VoIP Phone (Class 2)|
|VoIP Phone (Class 2)|
Recommended Product Families
The DPA-Switch DC-DC power conversion IC product family is ideally suited to supporting the different classification requirements for implementing PoE and PoEP architectures.
|Package Options||PoE Class Supported|
|DPA423||P, G||Class One|
|DPA424||P, G, R||Class Two, Class Three|
|DPA425||P, G, R||Class Three, Class Zero|
Related Design Support Documents
|General Design Information||Additional Information|
|Product Data Sheet||What is PoE?|
|DC-DC Selector Guide||Commonly Used Terms in PoE|
|Package Information||PoE Interoperability Testing|
|PoE Standards||Design Guides|
|802.3af Standard for PoE||AN-31||DC-DC Forward Converter Design Guide|
|802.3at Power Over Ethernet Plus Task Force|
Contact your local Power Integrations Sales Representative or Distributor for assistance.