FDMQ8205A ON Semiconductor

GreenBridge 2 Series of High-Efficiency Bridge Rectifiers FDMQ8205A General Description www.onsemi.com FDMQ8205A is GreenBridge 2 series of quad MOSFETs for a bridge application so that the input will be insensitive to the polarity of a power source coupled to the device. Many known bridge rectifier circuits can be configured using typical diodes. The conventional diode bridge has relatively high power loss that is undesirable in many applications. Especially, Power over Ethernet (PoE) Power Device (PD) application requires highefficiency bridges because it should be WDFN12 5x4.5, 0.8P operated with the limited power delivered from Power Source CASE 511CS Equipment (PSE) which is classified by IEEE802.3at. FDMQ8205A is configured with low r dual P ch MOSFETs and DS(on) MARKING DIAGRAM Nch MOSFETs so that it can reduce the power loss caused by the voltage drop, compared to the conventional diode bridge. FDMQ8205A enables the application to maximize the available Y&Z&2&K power and voltage and to eliminate the thermal design problems in FDMQ PoE PD applications. 8205A FDMQ8205A GreenBridge 2 is compatible with IEEE802.3at PoE standard by not compromising detection and classification requirement as well as small backfeed voltage. FDMQ8205A = Specific Device Code Y = ON Semiconductor Logo Features &Z = Assembly Plant Code Low Power Loss GreenBridge Replaces Diode Bridge &2 = 2Digit Data Code &K = 2Digits Lot Run Traceability Code Self Driving Circuitry for MOSFETs Low r 100 V Rated MOSFETs DS(on) ORDERING INFORMATION Maximizing Available Power and Voltage See detailed ordering and shipping information on page 9 of Eliminating Thermal Design Problems this data sheet. IEEE802.3af/at and 3bt Compatible Meet Detection and Classification Requirement Work with 2 and 4pair Architecture Small Backfeed Voltage Compact MLP 4.5x5 Package This is a PbFree Device Applications Power over Ethernet (PoE) Power Device (PD) IP Phones Network Cameras Wireless Access Points Thin Clients Microcell Femtocell Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: June, 2020 Rev. 2 FDMQ8205A/DFDMQ8205A TYPICAL APPLICATION RJ45 Connector 1 POUT G3 G2 FDMQ8205A 2 VOUTP INPUT1 INPUT2 3 VOUT+ Isolated 0.1 F 22 F TVS PoE PD DC/DC G1 G4 Interface Converter VOUT 6 NOUT 4 VOUTN POUT 5 G3 G2 FDMQ8205A 7 INPUT1 INPUT2 8 G1 G4 NOUT Figure 1. Typical Application of Power Device for 2Pair Architecture of IEEE802.3af/at Power over Ethernet Standard RJ45 Connector 1 POUT G2 G3 T1 T2 FDMQ8205A R1 2 VOUTP INPUT1 GD1 INPUT2 3 VOUT+ Isolated D1 PoE PD DC/DC G4 G1 Interface Converter VOUT GD1 6 NOUT 4 VOUTN POUT 5 G3 G2 T4 7 T3 FDMQ8205A R2 INPUT2 INPUT1 GD2 8 D2 G4 G1 GD2 NOUT Figure 2. Typical Application of Power Device for IEEE802.3bt Power over Ethernet Standard TYPICAL BOM OF GATE DRIVING CIRCUITS Reference Description Part Name T1, T2, T3, T4 NPN & PNP Transistors BC846BPDW1T1 D1, D2 Dual Common Anode Zeners MMBZ27VALT1G R1, R2 162 k Resistor RC0603FR07162KL www.onsemi.com 2