MAX5980 Evaluation Kit Evaluates: MAX5980 General Description Features The MAX5980 evaluation kit (EV kit) is a fully assembled S IEEE 802.3af/at-Compliant PSE Circuit and tested surface-mount circuit board featuring an S High-Power Mode (Programmable Up to 30W per Ethernet 4-port power-sourcing equipment (PSE) circuit Port or Up to 60W in a 2 x 2 Pair Configuration) M for -48V or -54V supply rail systems. The IEEE 802.3af/ 2 S Port Current Readout Through the I C Interface at-compliant MAX5980 PSE controller, in a 32-pin TQFN- EP package, and four n-channel power MOSFETs are S Input Voltages used to form the main PSE circuit on the EV kit. The IC is -32V to -60V Providing 4A (-48V/-54V Power used in Power-over-Ethernet (PoE) applications requiring Circuit, 1A/Port) DC power over four Ethernet network ports. The EV kit 2 provides optical isolation for the I C-compatible 3-wire S Ethernet Network Ports interface. The isolated interface can connect to a PCs Four RJ45 10/100/1000BASE-TX Ethernet USB port through an on-board USB interface circuit. Network Input Ports The EV kit can easily be reconfigured for interfacing to a Four RJ45 10/100/1000BASE-TX Ethernet users stand-alone microcontroller for isolated or noniso- Network Output PoE Ports lated operation. In stand-alone operation, the user must supply a separate 3.3V power supply (with respect to S Demonstrates Four Separate Independent Power VEE) capable of supplying 100mA for the EV kits +3.3V Switch Controllers optically isolated 3-wire interface. S Demonstrates PD Detection and Classification The EV kit requires a -32V to -60V power supply S DC Load Removal Detection and Disconnect (-48V/-54V supply rail) capable of supplying 4A or more Monitoring to the EV kit for powering the powered device (PD) through the four 10/100/1000BASE-TX Ethernet network S Convenient Voltage and Current Test Points ports. The EV kit demonstrates PD discovery, classifica- S Four Output-Port LED Status Indicators tion, current-limit control, and other functions of an IEEE 2 S Optically Isolated I C-Compatible 3-Wire PC 802.3af/at-compliant PSE circuit. Interface The IC controls the -48V/-54V DC power to each of the four Ethernet network ports by controlling the ports S Reconfigurable for Stand-Alone Operation or with power MOSFET and sensing current through the respec- an External Microcontroller (Requires a +3.3V, tive ports current-sense resistor. The current is fed to a 100mA Supply) 10/100/1000BASE-TX magnetic module at each Ethernet S Windows XP-, Windows Vista-, and Windows output port. The EV kit provides a separate, independent 7-Compatible Software power channel for each of the four Ethernet output ports. S Proven PCB Layout The EV kit demonstrates the full functionality of the IC for S Fully Assembled and Tested each power channel, such as configurable operational modes, high-power mode (programmable up to 30W per port or up to 60W in a 2 x 2 pair configuration), port cur- 2 rent information through the I C interface, PD detection, Ordering Information appears at end of data sheet. PD classification, overcurrent protection, current fold- back, under/overvoltage protection, and DC disconnect monitoring. All these features are configurable on the EV kit. Additional test points for voltage probing and current measurements have also been provided. M M The EV kit includes Windows XP -, Windows Vista -, M and Windows 7-compatible software and provides a user-friendly interface to demonstrate the features of the IC, while also providing access to each register at the bit IEEE is a registered service mark of the Institute of Electrical level. The program is menu-driven and offers a graphical and Electronics Engineers, Inc. user interface (GUI) with control buttons. The program also Windows, Windows XP, and Windows Vista are registered includes a macro engine to allow automated evaluation trademarks and registered service marks of Microsoft and testing of the IC at the system level. The programs Corporation. macro output files can be automatically saved. For pricing, delivery, and ordering information, please contact Maxim Direct at 19-6430 Rev 0 8/12 1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com.MAX5980 Evaluation Kit Evaluates: MAX5980 Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION D13D16 4 Green surface-mount LEDs (1206) 220FF Q20%, 100V electrolytic C1 1 capacitor (18 x 16.5) 60V, 6.2A transient voltage- Panasonic EEVFK2A221M suppressor diode (SMB) D22 1 Diodes Incorporated 1FF Q10%, 10V X5R ceramic SMBJ60A-13-F C3, C214 2 capacitors (0603) Murata GRM188R61A105K D201 1 Green LED (0603) 1FF Q10%, 100V X7R ceramic FB201 0 Not installed, ferrite bead (0603) C6 1 capacitor (1210) GND, VEE 2 Uninsulated banana jacks AVX 12101C105KAT9A GND 4 Red miniature PC test point 1000pF Q10%, 50V X7R ceramic M RJ45 2 x 4 gigabit MagJack , C7 1 capacitor (0603) 1000 Base-T, 2 x 4 ports, voice- Murata GRM188R71H102K over-IP magnetics (720mA DC) 10FF Q20%, 6.3V X5R ceramic Bel Fuse Inc. 08542x4RZ5AF or J2 1 C8 1 capacitor (0603) Pulse Engineering Murata GRM188R60J106M J0B-306NL-Rev MX1 or Delta Electronics, Inc. 0.033FF Q10%, 16V X7R ceramic RPGF-8MA8030-R C9 1 capacitor (0603) Murata GRM188R71C333K JU1JU6 6 3-pin headers JU8 1 2-pin header C10, C11, C12, Not installed, ceramic capacitors 0 C17 (0805) Not installed, 10-pin (2 x 5) JU9 0 header 0.1FF Q10%, 100V X7R ceramic C13, C18, 6 capacitors (0805) JU10, C26C29 AVX 08051C104KA JU23JU27, 0 Not installed, 2-pin headers JU29, C36, C38, 0.1FF Q10%, 16V X7R ceramic JU31JU40 C201, 13 capacitors (0603) C203C210, Not installed, 4-pin (2 x 2) Murata GRM188R71C104K JU11JU14 0 C217, C221 headers JU28, JU30 0 Not installed, 3-pin headers 10FF Q20%, 6.3V X5R ceramic C202, C213, 3 capacitors (0805) 100V, 3.3A n-channel MOSFETs C215 Murata GRM21BR60J106M N1N4 4 (Power 33) Fairchild FDMC3612 10pF Q5%, 50V C0G ceramic C211, C212 2 capacitors (0603) 100V, 0.17A n-channel MOSFETs Murata GRM1885C1H100J N5N8 4 (SOT23) Fairchild BSS123 2.2FF Q10%, 6.3V X5R ceramic C216 1 capacitor (0603) -20V, -2.4A, p-channel MOSFET Murata GRM188R60J225K P201 1 (3 SuperSOT) Fairchild FDN304P 22pF Q5%, 50V C0G ceramic C218, C219 2 capacitors (0603) 0.250I Q1%, 1W resistors (1206) R1R4 4 Murata GRM1885C1H220J IRC LRC-LR1206LF-01-R250-F R5, R24, R27, 3300pF Q10%, 50V X7R ceramic 5 10I Q5% resistors (0603) R32, R64 C220 1 capacitor (0603) Murata GRM188R71H332K R6 1 1.8kI Q5% resistor (0603) 60V, 600W transient voltage R9R15, R17, D9D12 4 suppressors (SMB) R29, R30, R51, 16 3kI Q5% resistors (0603) Fairchild SMBJ54A R53, R54, R77, R95, R96 MagJack is a registered trademark of Bel Fuse Inc. 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