onsemi (Ansemi)

WDFN (4.5x12.5)

taping

3000

The FDMQ8205A is a GreenBridgeTM2 family of quad MOSFETs intended for bridge applications, so the input is insensitive to the polarity of the supply to which the device is connected. Many well-known bridge rectification circuits can be configured using conventional diodes. The power loss of a traditional diode bridge is relatively high, which is undesirable in many applications. This is especially true for Power-over-Ethernet (PoE) powered device (PD) applications that require efficient bridging, as this application operates on the limited power provided by IEEE802.3at class power supply equipment (PSE). The FDMQ8205 is equipped with dual P-channel MOSFETs and N-channel MOSFETs with low rDS(on), thereby reducing power loss due to voltage drop compared to conventional diode bridges. The FDMQ8205A enables applications to maximize available power and voltage, eliminating thermal design concerns in PoE PD applications. The FDMQ8205 GreenBridgeTM2 does not degrade detection and classification requirements and is therefore compatible with the IEEE802.3at PoE standard.