Evaluates: MAX5969A/MAX5969B 19-5179 Rev 0 3/10 MAX5969B Evaluation Kit General Description Features The MAX5969B evaluation kit (EV kit) is a fully assem- S IEEE 802.3af/at-Compliant PD Interface Circuit bled and tested surface-mount circuit board featur- S -30V to -57V Input Range ing an Ethernet port, network powered-device (PD) S Demonstrates an Isolated +12V/22.7W Flyback interface-controller circuit for IEEE 802.3af/at-compliant DC-DC Converter power-over-Ethernet (PoE) systems. The EV kit features the MAX5969B IEEE 802.3af/at-compliant network PD S PD Detection and Configurable Classification Signatures interface controller IC in a 10-pin TDFN package. The MAX5969B is used in PoE applications requiring DC S 2-Event Classification or Wall Adapter Detect power from an Ethernet network port for PDs such as IP Output phones, wireless access nodes, and security cameras. S Power-Good Indicator Output The EV kit receives power from IEEE 802.3af/at-compliant S In-Rush Current Limit of 180mA (max) power-sourcing equipment (PSE). Refer to the MAX5965 S Evaluates Endspan and Midspan Ethernet and MAX5971 IC data sheets for PSE controllers. The Systems PSE provides the required -30V to -57V DC power over an unshielded twisted-pair Ethernet network cable to S Evaluates the MAX5969B/MAX5969A in a 10-Pin the EV kits RJ45 magnetic jack. The EV kit features a 1 TDFN Package x 1GbE RJ45 magnetic jack and two diode bridges for S Simplified Wall Adapter Interface separating the DC power provided by an endspan or S Fully Assembled and Tested midspan Ethernet system. The EV kit can also be powered by a wall adapter power source. The EV kit provides PCB pads to accept the output of a wall adapter power source. When a wall adapter power source is detected, it always takes precedence over the PSE source, allowing the wall Ordering Information adapter to power the EV kit. PART TYPE The EV kit demonstrates the full functionality of the MAX5969BEVKIT+ EV Kit IC, such as PD detection signature, PD classification +Denotes lead(Pb)-free and RoHS compliant. signature, in-rush current control, and input under- voltage lockout (UVLO). The EV kit also provides a modular RJ45 jack to interface with the Ethernet data Component List signals only. DESIGNATION QTY DESCRIPTION The EV kit also features a galvanically isolated 22.7W, 0.1FF Q10%, 100V X7R ceramic 600kHz switching frequency flyback DC-DC converter, C1 1 capacitor (0805) which uses the MAX15000A current-mode PWM con- Murata GRM21BR72A104K troller. The ICs output provides power for the converter circuit. The DC-DC converter is configured for an output 0.1FF Q10%, 100V X7R ceramic voltage of +12V and provides up to 1.9A. High efficiency C2 1 capacitor (0603) up to 89% is achieved using a single transistor flyback Murata GRM188R72A104K DC-DC converter topology. The surface-mount trans- 1000pF Q10%, 50V X7R ceramic former provides up to +1500V galvanic isolation for the C3 1 capacitor (0402) output. UVLO, soft-start, and thermal shutdown provide Murata GRM155R71H102K a robust 22.7W isolated power supply. The DC-DC converter operates at 600kHz, allowing the use of small 1000pF Q10%, 250V AC X7R C4 1 ceramic capacitor (1206) magnetics and output capacitors. The EV kit can also AVX Corp. 1206GC102KAT1A evaluate the MAX5969A after IC replacement (U1). IEEE is a registered service mark of the Institute of Electrical and Electronics Engineers, 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.MAX5969B Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 1FF Q10%, 100V X7R ceramic 56.7V, 600W transient voltage C5, C8 2 capacitors (1210) suppressor (SMB) D1 1 Murata GRM32CR72A105K Fairchild SMBJ51A (Top Mark: MZ) 4.7FF Q20%, 35V aluminum electrolytic capacitor 100V, 2A diode rectifier (SMB) C6 1 D2 1 (4mm x 5.8mm) Diodes Inc. ES2B-13-F Panasonic EEEFK1V4R7R 200V, 1A bridge rectifiers D3, D4 2 (MiniDIP) 68FF Q20%, 63V aluminum Diodes Inc. HD02 electrolytic capacitor C7 1 (8mm x 10.2mm) 27V, 500mW zener diode SANYO 63CE68FS (SOD123) D5 1 Diodes Inc. BZT52C27 0.1FF Q10%, 50V X7R ceramic (Top Mark: WP) C9, C12, C20 3 capacitors (0603) Murata GRM188R71H104K 75V, 150mA switching diode (SOD323) 330pF Q10%, 50V X7R ceramic D6 1 Diodes Inc. 1N4148WS C10 1 capacitor (0402) (Top Mark: T4 or T6) Murata GRM155R71H331K 0.1FF Q10%, 16V X7R ceramic 60V, 7A Schottky diode C11 1 capacitor (0402) D7 1 (PowerDI 5) Murata GRM155R71C104K Diodes Inc. PDS760 5600pF Q10%, 25V X7R ceramic Modular side-entry, 8-position C13 1 capacitor (0402) J3 1 jack assembly Murata GRM155R71E562K Tyco Electronics 5520252-4 100pF Q5%, 50V C0G ceramic 3.3FH, 2.26A inductor C14 1 capacitor (0402) L1 1 Cooper Bussmann SD53-3R3-R Murata GRM1555C1H101J (Top Mark: C) 150V, 4.1A n-channel MOSFET 8200pF Q10%, 25V X7R ceramic N1 1 (8 SO) C15 1 capacitor (0402) Fairchild FDS2582 Murata GRM155R71E822K Q1 0 Not installed, transistor (SOT23) 2200pF Q10%, 250VAC X7R UL C16 1 ceramic capacitor (1812) 1GbE IEEE 802.3af/at-compliant Murata GA343QR7GD222K RJ45 1 RJ45 MagJack Bel Fuse 0826-1X1T-GH-F 47FF Q10%, 16V X5R ceramic C17, C18, C19 3 capacitors (1210) R1, R8 2 24.9kI Q1% resistors (0603) Murata GRM32ER61C476K R2 1 30.9I Q1% resistor (0805) C21 0 Not installed, capacitor (0805) R3, R7 2 59kI Q1% resistors (0402) C24 0 Not installed, capacitor (0402) R4, R5, R30, 0 Not installed, resistors (0402) R32, R33 PowerDI is a registered trademark of Diodes Incorporated. MagJack is a registered trademark of Bel Fuse Inc. 2 Evaluates: MAX5969A/MAX5969B