19-5740 Rev 0 1/11 MAX5971A Evaluation Kit Evaluates: MAX5971A General Description Features The MAX5971A 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 Class 5 Mode Configurable Up to 40W Ethernet single-port power-sourcing equipment (PSE) S -32V to -60V Input Voltage Providing 1A M circuit for -54V supply rail systems. The IEEE 802.3af/ S Ethernet Network Ports at-compliant MAX5971A PSE controller IC, in a 28-pin TQFN package, features an internal n-channel power RJ45 10/100/1000BASE-TX Ethernet Network Data Input Port MOSFET forming the main PSE circuit on the EV kit. The IC is used in power-over-Ethernet (PoE) applications RJ45 10/100/1000BASE-TX Ethernet Network requiring DC power over a single Ethernet network port. PSE Output Port The EV kit requires a -32V to -60V power supply (-54V S Demonstrates ICs Internal Power Switch and supply rail) capable of supplying 1A or more to the EV Current Sensing kit for powering the powered device (PD) through the S Demonstrates Standard and Legacy PD Detection 10/100/1000BASE-TX Ethernet network port. The EV and Classification kit demonstrates PD discovery, classification, current- S Configurable for Midspan or End-Point Mode limit control, and other functions of an IEEE 802.3af/at- compliant PSE. S Configurable AC/DC Load-Removal Detection and Disconnect Monitoring The IC controls the -54V DC power to the Ethernet network port by sensing current through the port and S Convenient Voltage and Current Test Points controlling the ICs internal power MOSFET. The current S Demonstrates the EV Kit Circuits Output Port M is fed to a 1 x 1 gigabit MagJack module at the EV kits LED-Status Indicator Ethernet output port. S Proven PCB Layout The EV kit demonstrates the full functionality of the ICs S Fully Assembled and Tested operational modes, such as configurable high-power modes (programmable up to 40W), PD detection, PD Ordering Information appears at end of data sheet. classification, overcurrent protection, current fold- back, undervoltage/overvoltage protection, and AC-/ DC-disconnect monitoring. All these features are configu- Component List rable on the EV kit, with additional test points for voltage probing and current measurements provided. The EV kit DESIGNATION QTY DESCRIPTION can also be configured for midspan or end-point network 47FF Q20%, 100V electrolytic operation. C1 1 capacitor (12.5mm x 13.5mm) Panasonic EEEFK2A470AQ 0.1FF Q10%, 100V X7R ceramic C2, C3, C5 3 capacitors (0603) Murata GRM188R72A104KA35B 0.47FF Q10%, 100V X7R ceramic C4 1 capacitor (0805) Murata GRM21BR72A474KA73B 0.1FF Q10%, 16V X7R ceramic C6 1 capacitor (0603) Murata GRM188R71C104K 1000pF Q10%, 50V X7R ceramic IEEE is a registered service mark of the Institute of Electrical C12 1 capacitor (0603) and Electronics Engineers, Inc. Murata GRM188R71H102K MagJack is a registered trademark of Bel Fuse Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX5971A Evaluation Kit Evaluates: MAX5971A Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION R3, R10R13, 100V, 150mA small-signal diodes 7 1kI Q5% resistors (0402) R15, R16 D1, D3 2 (SOD323) Fairchild 1N4148WS R4 1 2.2MI Q5% resistor (0805) R5, R6 0 Not installed, resistors (1206) 58V, 600W transient-voltage D2 1 suppressor (SMB) R7, R8 2 0I Q5% resistors (1206) Vishay SMBJ58A R9 0 Not installed, resistor (0402) R29 1 5.1kI Q5% resistor (0603) 100V, 1A general-purpose diode D4 1 (SMA) SW1 1 Microminiature pushbutton switch Diodes Inc. S1B TP1, TP3TP6, 7 Miniature PC test points, yellow TP9, TP10 GND (x2), Uninsulated panel-mount banana 4 RTN, VEE jacks TP2 1 Miniature PC test point, red J1 1 RJ45 connector module jack (8-8) TP11, TP13 2 Miniature PC test points, black Single-port PSE controller RJ45 1 x 1Gb MagJack, 1000 U1 1 (28 TQFN-EP*) Base-T, 1 x 1 port, voice-over-IP J2 1 Maxim MAX5971AETI+ magnetics (700mA DC) Bel Fuse Inc. 0826-1X1T-GH-F 4 Rubber bumpers 6 Shunts (JU1JU6) JU1JU6 6 2-pin headers PCB: MAX5971A EVALUATION 10mH, 17mA inductor L1 1 1 KIT+ Coilcraft DS1608C-106 9.09kI Q1%, 1/2W resistor (2010) *EP = Exposed pad. R1 1 Panasonic ERJ-12SF9091U Component Suppliers SUPPLIER PHONE WEBSITE Bel Fuse Inc. 201-432-0463 www.belfuse.com Coilcraft, Inc. 847-639-6400 www.coilcraft.com Diodes Incorporated 805-446-4800 www.diodes.com Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Panasonic Corp. 800-344-2112 www.panasonic.com Vishay 402-563-6866 www.vishay.com Note: Indicate that you are using the MAX5971A when contacting these component suppliers. Maxim Integrated Products 2