DEMO MANUAL DC1815A LTC4266A Quad LTPoE++ PSE Controller DESCRIPTION Demonstration circuit 1815A features the LTC(R)4266A quad power sourcing equipment (PSE) controller, capable of delivering up to 90W of LTPoE++TM power to a compatible LTPoE++ powered device (PD). A proprietary detection/ classification scheme allows mutual identification between an LTPoE++ PSE and LTPoE++ PD while remaining compatible and interoperable with existing Type 1 (13W) and Type 2 (25.5W) PDs. The LTC4266A feature set is a superset of the popular LTC4266. These PSE controllers utilize low RON external MOSFETs and 0.25 sense resistors which are especially important at the LTPoE++ current levels to maintain the lowest possible heat dissipation. The LTC4266A is available in multiple power grades, allowing delivered PD power of 13W, 25.5W, 38.7W, 52.7W, 70W and 90W. The DC1815A has four variations DC1815A-A, DC1815A-B, DC1815A-C, and DC1815A-D which accommodate the four LTPoE++ power levels (Table 1). Advanced power management features of the LTC4266A include: a 14-bit current monitoring ADC, DAC-programmable current limit, and versatile quick port shutdown. Advanced power management host software is available under a no-cost license. PD discovery uses a proprietary dual mode 4-point detection mechanism ensuring excellent immunity from false PD detection. The LTC4266A includes an I2C serial interface operable up to 1MHz. Optional I2C control is accessed on the DC1815A either with test points or a 14-pin ribbon cable for DC590 QuikEvalTM GUI operation. The LTC4266A is configurable on the DC1815A as an AUTO pin high, MID pin high, autonomous midspan power injector; input data from an existing network system is sent out, along with power, to a PD. The LTC4266A autonomously detects a PD, turns power on to the port, and disconnects port power without the need for a microcontroller. OUTn LEDs indicate that port power is present. A single 55V supply is required to power the DC1815A. A simple LDO regulator circuit on the board powers the digital supply of the LTC4266A. A SHDN pushbutton for each port shuts down the respective port and disables detection. Pre-programmed masked shutdown ports are shut down with the MSD pushbutton. A RESET pushbutton resets the LTC4266A to its AUTO pin logic state. Ports shut down with the SHDN or MSD pushbutton must be re-enabled via I2C or a device reset with the AUTO pin high. Design files for this circuit board are available at http://www.linear.com/demo/DC1815A L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTPoE++ and QuikEval are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Table 1. DC1815A Power Levels and Power Supply DEMO BOARD PSE CONTROLLER MAX DELIVERED PD POWER POWER SUPPLY* DC1815A-A LTC4266A-1 38.7W 300W DC1815A-B LTC4266A-2 52.7W 300W DC1815A-C LTC4266A-3 70W 420W DC1815A-D LTC4266A-4 90W 540W *Recommended DC1815A power supply minimum to avoid drooping in a worst-case scenario with ILIM current at all four ports. Set the voltage between 54.75V to 57V for LTPoE++ compliance dc1815afd 1 DEMO MANUAL DC1815A QUICK START PROCEDURE Demonstration circuit 1815A is easy to set up for evaluating the performance of the LTC4266A. Refer to Figure 1 for proper test equipment setup and follow the procedure below. 1. Set MID jumper JP5 to LO which disables midspan mode. 2. Set AUTO jumper JP4 to HI which enables AUTO pin high mode. 3. Connect a 55V to 57V power supply across AGND (+) and VEE (-). Size the power supply considering the maximum power delivered to the PDs. 4. Connect with an Ethernet cable an 802.3at Type 1 or Type 2, or LTPoE++ compatible PD to one of the four bottom ports of 2x4, RJ45 connector J1. 5. (Optional) For data tests, connect a PHY with an Ethernet cable to one of the four top ports of 2x4, RJ45 connector J1. 6. (Optional) Connect a DC590 via ribbon cable to the DC1814A and via USB to a PC. Open the QuikEval software for I2C GUI interfacing. Figure 1. DC1815A Setup 2 dc1815afd DEMO MANUAL DC1815A OPERATION Introduction AUTO Pin The DC1815A demonstrates the features and capabilities of the LTC4266A, a quad controller for LTPoE++ power sourcing equipment. The DC1815A provides a quick and simple PSE solution requiring only a VEE supply. The LTC4266A AUTO pin is set high or low with jumper JP4 on the DC1815A. With the AUTO pin high after a device reset or power on, the LTC4266A operates in fully autonomous mode without the need for a microcontroller. The LTC4266A will automatically detect, classify, and power on IEEE 802.3at Type 1, Type 2 and LTPoE++ PDs up to the power level rating of the LTC4266A version used. For full control via I2C, the AUTO pin is to be pulled low. Modification of the AUTO pin jumper requires a device reset or power cycle. Supply Voltages Select a VEE supply with enough power to sustain all four ports at maximum load. Table 1 shows the maximum delivered PD power of a single port as well as a recommended VEE power supply minimum to avoid drooping in a worst-case scenario with ILIM current at all four ports. The LTC4266A also requires a digital 3.3V supply. The DC1815A uses a simple LDO regulator circuit to power the 3.3V digital supply from the VEE supply. The LTC4266A VDD supply is allowed to be within 5V above or below AGND. On the DC1815A, VDD is tied to AGND and DGND is a negative voltage below AGND. D1, R5, Q5, R14, R15, and R25 generate the negative voltage referenced to AGND (Figure 2). These components are sized to handle the power required to supply the LTC4266A and LEDs on the DC1815A. Contact Linear Technology Applications for 3.3V options. Endpoint vs Midspan The LTC4266A can be configured either for endpoint or midspan operation by setting the MID pin high or low respectively. This is selected with jumper JP5 on the DC1815A. The MID pin high state enables a two second detection back-off timer. The LTC4266A must be reset or power-cycled for the MID pin to be detected. For proper midspan operation the AUTO pin must also be high. I2C Control The LTC4266A is a slave-only I2C device, and communicates with a host using a standard SMBus/I2C 2-wire interface. On the DC1815A, a host can be connected to the SCL and SDA test points. Optionally, a DC590B board can be connected with a 14-pin ribbon cable to header J6. The LTC4266A has separate pins for SDAIN and SDAOUT to facilitate the use of opto-couplers. The SDAIN and SDAOUT lines are tied together on the DC1815A with a shunt resistor (R10) to provide a traditional bi-directional SDA line. Figure 2. DC1815A LDO Circuit for the LTC4266A Digital Supply. The 7-bit I2C address of the LTC4266A is 010A3A2A1A0b, where A3 through A0 are determined by pins AD3 through AD0 respectively. On the DC1815A board the state of these pins are controlled by the quad DIP switch, S1. All LTC4266 chips also respond to the global address 0110000b regardless of the state of their AD3-AD0 pins. Interrupts are signaled by the LTC4266A to the host via the INT pin. A red LED on the DC1815A indicates if the INT line is being pulled low. dc1815afd 3 DEMO MANUAL DC1815A OPERATION Board Layout Proper components placement and board layout with the LTC4266A is important to provide electrical robustness and correct operation. The following mentioned components, also shown in Figure 3, must be close to their respective LTC4266A pins with no other components in between on the connection path. Place a 0.1F capacitor (C1) directly across VDD and DGND. Place a 1F, 100V capacitor (C4) and a SMAJ58A TVS (D3) directly across AGND and VEE. Place the OUT 0.22F, 100V capacitors (C22, C36, C47, and C58) directly to their respective OUT pins all going to an AGND plane. The power path is from VEE to the sense resistor, to the MOSFET, and out to the port. Select a trace width appropriate for the maximum current. Kelvin sensing is necessary to provide accurate current readings particularly with DC Disconnect. The sense resistors used with the LTC4266A must be 0.25, 1% or better, and with a power rating that can handle the maximum DC current passed through them. A dedicated sense trace from each SENSE pin of the LTC4266A must go directly to the respective sense resistor solder pad (Figure 4). Do not connect to a copper area or trace between the sense resistor and the MOSFET. The VEE side of the sense resistor must connect to a thick VEE plane through several large vias. At the LTC4266A, the VEE pins and exposed pad tie together on the top layer and connect to the VEE plane as well through its own multiple large vias. The via size, number of vias, copper thickness, trace width, and number of layers that connect VEE between the sense resistors and the LTC4266A VEE pins must total less than 15m. A 2oz. copper thickness for the VEE copper plane must be used if there is only a single VEE plane connecting the LTC4266A VEE pins to the sense resistors. The VEE current path from the sense resistors to the main VEE power supply must be either through a copper plane, or a thick trace. If a trace is used, it must not pass under the LTC4266A. Instead the path must go out to VEE from the sense resistors as shown in Figure 4. The VEE connection is from the VEE supply to the sense resistors to the LTC4266A VEE pins and must stay in that order. Figure 4. LTC4266A VEE Pins and Sense Resistors Connect to a VEE Inner Layer Plane. A Kelvin Sense Trace from each SENSE Pin Runs to the Respective Sense Resistor Pad. Connect the VEE Supply Path to the Sense Resistors First, Then to the LTC4266A VEE Pins Figure 3. LTC4266A Key Application Components for Board Placement dc1815afd 4 DEMO MANUAL DC1815A OPERATION When laying out multiple LTC4266A devices, group the four sets of port MOSFET and sense resistor with their respective LTC4266A as shown in Figure 5. Each LTC4266A has its own copper fill area on the surface that connects to the VEE plane with multiple large vias. The net effect is to reduce the layout problem down to 4-port groups; this arrangement is expandable to any number of ports. Figure 5. Multiple LTC4266 Layout Strategy to Reduce Mutual Resistance Surge Protection Ethernet ports can be subject to significant cable surge events. To keep PoE voltages below a safe level and protect the application against damage, protection components are required at the main supply, at the LTC4266A supply pins and at the ports. Refer to DC1815A schematic. Bulk transient voltage suppression devices and bulk capacitance are required across the main PoE supply and should be sized to accommodate system level surge requirements. Across the LTC4266A AGND pin and VEE pin are an SMAJ58A, 58V TVS and a 1F, 100V bypass capacitor. These components must be placed close to the LTC4266A pins. In a high surge environment, a 10, 0805 resistor in series from supply AGND to the LTC4266A AGND and VDD pin is recommended as shown in the schematic comments. The bulk TVS and capacitance remain on the supply side of this 10 resistor. The LTC4266A supply pins local TVS and capacitance remain at the LTC4266A side of this 10 resistor. Each port requires a pair of S1B clamp diodes: one from OUT to supply AGND and one from supply VEE to OUTn. The diodes at the ports steer harmful surges into the supply rails where they are absorbed by the surge suppressors and the VEE bypass capacitance. The layout of these paths must be low impedance. PCB LAYOUT Top Silkscreen Layer 1: Top Layer dc1815afd 5 DEMO MANUAL DC1815A PCB LAYOUT Layer 2: Plane Layer Layer 3: Plane Layer Layer 4: Bottom Layer Bottom Silkscreen dc1815afd 6 DEMO MANUAL DC1815A PARTS LIST ITEM QTY 1 2 REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER C4, C65 CAP, 0603 0.1F 10% 25V X7R TDK C1608X7R1E104K 2 16 CT1-CT16 CAP, 0805 0.01F 5% 100V X7R AVX 0805C103JAT2A 3 2 C64, C66 CAP, 0805 1F 10% 100V X7S TDK C2012X7S2A105K 4 1 C2 CAP, 10uF 20% 100V ALUM. PANASONIC EEE-2AA100UP 5 4 C22, C36, C47, C58 CAP, 1206 0.22F 5% 100V X7R AVX 12061C224JAT2A 6 10 C5, C6, CG1-CG8 CAP, 1808 1000pF 10% 2KV X7R TDK C4520X7R3D102K 7 2 J2, J3 CONN, JACK, BANANA KEYSTONE 575-4 8 1 J1 CONN, RJ45, 8-PORT DUAL ROW SHIELDED TE CONNECTIVITY, 5569262-1 9 1 CLD1 DIODE, CURRENT LIMITING, 2.7mA, SOD-80 CENTRAL SEMI CCLM2700 10 8 D8-D11, D24-D27 DIODE, RECTIFIER, 100V 1A, SMA FAIRCHILD S1B 11 1 D3 DIODE, TVS, 400W, 58V, SMA DIODES INC. SMAJ58A 12 2 D18, D20 DIODE, TVS, 5000W, 60V, SMC LITTLEFUSE 5.0SMDJ60A 13 1 D1 DIODE, ZENER 3.9V SOD-123 ON SEMI, MMSZ4686T1G 14 1 D23 DIODE, ZENER, 5.6V, SOT23 FAIRCHILD, BZX84C5V6 15 1 J6 HEADER, 2 x 7 2mm MOLEX 87831-1420 16 2 JP4, JP5 HEADER, 3-PIN, 2mm SAMTEC TMM-103-02-L-S 17 1 U3 IC, 24LC025, EEPROM, TSSOP MICROCHIP 24LC025-I/ST 18 2 D5, D7 LED, AMBER ROHM SML-010DTT86L 19 4 D12-D15 LED, GREEN ROHM SML-010FTT86L 20 1 D6 LED, RED ROHM SML-010VTT86L 21 16 F-1-F16 FUSE, 3A, 63VDC 1206 BEL FUSE C1Q3 22 1 R9 RES, 0603 1 5% 1/10W VISHAY CRCW06031R00JNEA 23 1 R10 RES, 0603 10 5% 1/10W VISHAY CRCW060310R0JNEA 24 1 R5 RES, 0603 100k 5% 1/10W VISHAY CRCW0603100KJNEA 25 2 R1, R2 RES, 0603 10k 5% 1/10W VISHAY CRCW060310K0JNEA 26 6 R8, R13, R18, R21, R24, RL1 RES, 0603 1.0k 5% 1/10W VISHAY CRCW06031K00JNEA 27 4 R7, R17, R20, R23 RES, 0603 10M 5% 1/10W VISHAY CRCW060310M0JNEA 28 4 R6, R16, R19, R22 RES, 0603 2M 5% 1/10W VISHAY CRCW0603910KJNEA 29 3 REP3-REP5 RES, 0603 5.1k 5% 1/10W VISHAY CRCW06035K10JNEA 30 32 RT1-RT32 RES, 0603 75 5% 1/10W VISHAY CRCW060375R0JNEA 31 3 R14, R15, R25 RES, 1206 4.7k 5% 1/4W VISHAY CRCW12064K70JNEA 32 4 RS1-RS4 RES, 2512, 0.25 1% 2W STACKPOLE, CSRN2512FKR250 33 4 MH1-MH4 STAND-OFF, NYLON 0.75" KEYSTONE, 8834(SNAP ON) 34 1 S1 SWITCH, DIP 4-POSITION TYCO/ALCOSWITCH ADE04 35 6 S2-S7 SWITCH, MOMENTARY WURTH 434 123 050 816 36 16 E1-E16 4 T1-T4 TESTPOINT, TURRET, 0.094" PBF TRANSFORMER, POE++ (OPTION) MILL-MAX, 2501-2-00-80-00-00-07-0 37 38 4 Q9-Q12 XSTR, MOSFET P-CHANNEL 30V (D-S), SOT-23 VISHAY Si2343DS 39 4 Q1-Q4 XSTR, MOSFET, N-CHANNEL 100V FAIRCHILD FDMC86102 40 1 Q5 XSTR, PNP, 100V, SOT223 ZETEX ZXTP19100CG MIDCOM WURTH 749022016 COILCRAFT ETH1-460L dc1815afd 7 DEMO MANUAL DC1815A PARTS LIST ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER 41 3 XJP4, XJP5 SHUNT, 2mm SAMTEC 2SN-BK-G 42 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT 1815A-2 43 2 STENCIL TOP & BOTTOM DC1815A-2 DC1815A-A 1 1 DC1815A GENERAL BOM 2 16 FB1-FB16 FERRITE BEAD, 1k, 0805 TDK MPZ2012S102A 3 1 U1 IC, LTC4274A-1, QUAD PORT 38.7W PSE CONTROLLER LINEAR LTC4274AIUHF-1 4 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT 1815A DC1815A-B 1 1 DC1815A GENERAL BOM 2 16 FB1-FB16 FERRITE BEAD, 1k, 0805 TDK MPZ2012S102A 3 1 U1 IC, LTC4266A-2 QUAD PORT 52.7W PSE CONTROLLER LINEAR LTC4266AIUHF-2 4 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT 1815A DC1815A-C 1 1 DC1815A GENERAL BOM 2 16 FB1-FB16 FERRITE BEAD, 1k, 0805 TDK MPZ2012S102A 3 1 U1 IC, LTC4266A-3, QUAD PORT 70W PSE CONTROLLER LINEAR LTC4266AIUHF-3 4 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT 1815A DC1815A-D 1 1 DC1815A GENERAL BOM 2 16 FB1-FB16 FERRITE BEAD, 1300, 1812 TAIYO YUDEN FBMH4532HM132-T 3 1 U1 IC, LTC4266A-4, QUAD PORT 90W PSE CONTROLLER LINEAR LTC4266AIUHF-4 4 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT 1815A dc1815afd 8 A B C D E1 VEE J3 E2 5.0SMDJ60A D20 J2 D18 5.0SMDJ60A 70W 90W -C -D 5 38.7W 52.7W -B -WATT PSE -A ASSEMBLY VERSION 2. INSTALL SHUNTS AS SHOWN. 1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603. CLD1 C2 10uF 100V U1 LTC4266AIUHF-4 LTC4266AIUHF-3 LTC4266AIUHF-2 LTC4266AIUHF-1 VEE CCLM2700 + D5 VEE AMBER NOTE: UNLESS OTHERWISE SPECIFIED VEE (-) ( 55V to 57V ) MAIN SUPPLY IN AGND (+) AGND SDAOUT SDAIN FOR HIGH SURGE ENVIRONMENTS ADD A 10 OHM, 0805 RESISTOR SCL AT THIS LOCATION C6 C5 R15 4.7K 1206 E9 Q5 VDD R14 4.7K 1206 4 R25 4.7K 1206 ZXTP19100CG FBMH4532HM132-T MPZ2012S102A MPZ2012S102A R13 1.0K D7 VDD AMBER R9 1 E10 MPZ2012S102A FB1 - FB16 1808 2KV 1000pF 1808 2KV 1000pF R5 100K C66 1uF 100V 0805 VDD DGND (-3.3V) 3.9V D1 SDAOUT SDAIN SCL R1 10K VDD D23 5.6V C65 0.1uF R2 10K 10 13 E14 D3 SMAJ58A 100V 0805 C64 1uF DGND VDD 10 R10 INT VDD INT RED D6 RL1 1.0K SCL VDD 3 1 1 4 AGND 18 3 SDAOUT 38 37 INT SCL SDAIN VEE RS1 0.25 RS2 0.25 FDMC86102 Q1 3 14 3 CSRN2512FKR250 CSRN2512FKR250 25 VEE 26 VEE 39 4 5 6 7 AD3 AD2 AD1 AD0 SENSE 1 30 GATE 1 31 OUT 1 32 15 SD1 27 16 SD2 SENSE 2 17 SD3 GATE 2 AD0 AD1 AD2 AD3 Q2 AUTO 1 2 3 4 S1 8 7 6 5 ADDRESS HI LTC4266AIUHF U1 LO RS4 0.25 FDMC86102 Q3 S5 S4 S3 S2 D8 S1B S7 MSD C22 0.22uF X7R 100V 1206 VEE D24 S1B RESET S6 VDD 3 2 1 LO HI C36 0.22uF X7R 100V 1206 2 JK SCALE = NONE DILIAN R. 3 2 1 DATE: N/A SIZE PRODUCTION TM TECHNOLOGY APPROVED AGND OUT4 OUT4 OUT3 OUT3 OUT2 OUT2 OUT1 OUT1 AGND DILIAN R. DILIAN R. DILIAN R. DILIAN R. DATE 5/4/11 12/8/15 3/28/13 10/5/11 1 DEMO CIRCUIT 1815A LTC4266AIUHF FAMILY SHEET 1 PSE CONTROLLER 2 OF 3 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only E7 E6 E5 E4 E3 C58 0.22uF X7R 100V 1206 E8 VEE D27 S1B D11 S1B SURGE RESISTOR T1-T4 OPTION PWR LEVEL UPDATE Tuesday, December 08, 2015 IC NO. 1 DESCRIPTION REVISION HISTORY QUAD PORT LTPoE++ TITLE: SCHEMATIC VEE D26 S1B C47 0.22uF X7R 100V 1206 LO 2b 2c _ _ HI 2 2a _ _ REV ECO MID JP5 D10 S1B VDD APPROVALS VEE D25 S1B D9 S1B AUTO JP4 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE FDMC86102 Q4 SD4 SD3 SD2 SD1 2 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. CSRN2512FKR250 CSRN2512FKR250 RS3 0.25 FDMC86102 28 SD4 MID MID 33 22 OUT 2 29 AUTO SENSE 3 35 RESET 36 GATE 3 23 OUT 3 24 SENSE 4 19 MSD 34 GATE 4 20 OUT 4 21 5 A B C D DEMO MANUAL DC1815A SCHEMATIC DIAGRAM dc1815afd 9 10 A B C D 5 6 7 8 1 2 3 4 3-5 3-6 3-7 3-8 3-1 3-2 3-3 3-4 J1-3 DATA IN RJ45 5569262-1 5-5 5-6 5-7 5-8 5-1 5-2 5-3 5-4 J1-5 DATA IN 45 46 47 48 41 42 43 44 25 26 27 28 21 22 23 24 RJ45 5569262-1 DATA IN RJ45 5569262-1 1-5 1-6 1-7 1-8 J1-1 1-1 1-2 1-3 1-4 5 CG5 1000pF 2kV 1808 CG3 1000pF 2kV 1808 CG1 1000pF 2kV 1808 5 T1 OUT1 F1 C1Q 3 OUT2 F5 C1Q 3 75 75 RT20 75 T3 OUT3 F9 C1Q 3 OUT3 F12 C1Q 3 F11 C1Q 3 FB9 FB11 3A, 1206 3A, 1206 3A, 1206 FB10 3A, 1206 3A, 1206 23 F10 C1Q 3 24 22 3 2 20 1 21 19 6 5 17 8 4 18 7 16 14 9 15 13 11 12 FB7 3A, 1206 3A, 1206 3A, 1206 F8 C1Q 3 F7 C1Q 3 OUT2 F6 C1Q 3 FB6 3A, 1206 FB5 75 10 RT19 RT18 RT17 13 12 14 11 15 16 9 75 10 18 7 RT12 17 19 8 21 6 20 4 5 75 75 22 3 23 FB3 FB2 3A, 1206 3A, 1206 24 T2 FB1 1 2 F4 C1Q 3 F3 C1Q 3 OUT1 F2 C1Q 3 23 3A, 1206 24 22 3 2 20 5 1 21 4 19 17 8 6 18 7 RT11 RT10 75 75 RT4 RT9 75 16 9 14 75 11 13 15 12 75 10 RT3 RT2 RT1 4 4 FB12 RT24 RT23 RT22 RT21 FB8 RT16 RT15 RT14 RT13 FB4 RT8 RT7 RT6 RT5 75 CT12 0.01uF 0805 75 CT11 0.01uF 0805 75 CT10 0.01uF 0805 75 CT9 0.01uF 0805 75 CT8 0.01uF 0805 75 CT7 0.01uF 0805 75 CT6 0.01uF 0805 75 CT5 0.01uF 0805 75 CT4 0.01uF 0805 75 CT3 0.01uF 0805 75 CT2 0.01uF 0805 75 CT1 0.01uF 0805 CG6 1000pF 2kV 1808 CG4 1000pF 2kV 1808 CG2 1000pF 2kV 1808 2-5 2-6 2-7 2-8 2-1 2-2 2-3 2-4 PORT 1 3 4-5 4-6 4-7 4-8 4-1 4-2 4-3 4-4 J1-4 PORT 2 DATA IN 6-5 6-6 6-7 6-8 6-1 6-2 6-3 6-4 J1-6 PORT 3 3 POWER AND DATA OUT RJ45 5569262-1 55 56 57 58 51 52 53 54 POWER AND DATA OUT RJ45 5569262-1 35 36 37 38 31 32 33 34 7-5 7-6 7-7 7-8 7-1 7-2 7-3 7-4 J1-7 RJ45 5569262-1 POWER AND DATA OUT RJ45 5569262-1 15 16 17 18 11 12 13 14 J1-2 65 66 67 68 61 62 63 64 CG7 1000pF 2kV 1808 OUT4 SHIELD 2 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE RJ45 5569262-1 S1 S2 S3 S4 S5 S6 S7 S8 S9 J1-13 75 CT16 0.01uF 0805 75 CT15 0.01uF 0805 75 CT14 0.01uF 0805 75 CT13 0.01uF 0805 2c 2b _ _ 2 2a _ _ REV ECO 1 JK SCALE = NONE DILIAN R. DATE: N/A SIZE TECHNOLOGY 8-5 8-6 8-7 8-8 8-1 8-2 8-3 8-4 J1-8 3/28/13 PORT 4 12/8/15 POWER AND DATA OUT TM PSE CONTROLLER 1 DEMO CIRCUIT 1815A SHEET 2 LTC4266AIUHF FAMILY Tuesday, December 08, 2015 IC NO. QUAD PORT LTPoE++ TITLE: SCHEMATIC DILIAN R. DILIAN R. DATE 5/4/11 10/5/11 2 OF 3 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only NOTE: FOR TEMPERATURE SENSITIVE 90W APPLICATIONS, TWO OF THE 749012013 MAY BE USED AS AN ALTERNATE TO EACH T1, T2, T3, and T4 WHICH HAS A HIGHER CURRENT RATING APPROVED DILIAN R. DILIAN R. RJ45 5569262-1 75 76 77 78 71 72 73 74 SURGE RESISTOR T1-T4 OPTION PWR LEVEL UPDATE PRODUCTION DESCRIPTION REVISION HISTORY CG8 1000pF 2kV 1808 T1,T2,T3,T4: WURTH 749022016 COILCRAFT ETH1-460L FB16 RT32 RT31 RT30 RT29 APPROVALS 3A, 1206 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 121 122 123 124 125 126 127 128 129 FB15 FB14 3A, 1206 3A, 1206 3A, 1206 F16 C1Q 3 F15 C1Q 3 OUT4 F14 C1Q 3 13 12 FB13 15 75 10 F13 C1Q 3 14 18 17 19 21 20 22 24 23 16 T4 9 7 8 6 4 5 3 1 2 11 75 75 75 CONNECTOR SHIELDING RT28 RT27 RT26 RT25 2 A B C D DEMO MANUAL DC1815A SCHEMATIC DIAGRAM dc1815afd A B C R7 10M R6 910K 1 3 2 R16 910K 5 R17 10M REP5 5.1K D12 OUT1 GRN R8 1.0K Q9 Si2343DS VDD 1 REP4 5.1K OUT2 D OUT1 VDD D13 OUT2 GRN R18 1.0K R20 10M Q10 Si2343DS R19 910K 1 R23 10M J6 14 13 A1 A2 VSS SCL SDA TP29 A0 24LC025 WP 4 3 2 1 12 C4 0.1uF 10 9 11 8 6 5 7 4 2 3 1 VCC WP 5 6 7 8 U3 D14 OUT3 GRN R21 1.0K Q11 Si2343DS 1 VDD R22 910K TO DC590 3 2 VDD QUICKEVAL FOR DEMO ONLY REP3 5.1K OPTIONAL LED DRIVE 3 2 VDD VDD OUT3 VDD OUT4 5 SDAOUT SDAIN SCL 3 2 4 D15 OUT4 GRN R24 1.0K Q12 Si2343DS VDD 4 DGND E15 E13 E12 E11 DGND E16 MH4 MH3 MH2 MH1 SDAOUT SDAIN SCL 1 1 1 1 MOUNTING HOLES SDAOUT SDAIN SCL 1 1 MH5 MH6 3 3 2 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE SCALE = NONE DILIAN R. JK APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 2 2b 2c _ _ DATE: N/A SIZE PRODUCTION TM TECHNOLOGY APPROVED DILIAN R. DILIAN R. DILIAN R. DILIAN R. DATE 5/4/11 12/8/15 3/28/13 10/5/11 1 DEMO CIRCUIT 1815A SHEET 3 LTC4266AIUHF FAMILY PSE CONTROLLER 2 OF 3 REV. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only SURGE RESISTOR T1-T4 OPTION PWR LEVEL UPDATE Tuesday, December 08, 2015 IC NO. 1 DESCRIPTION REVISION HISTORY QUAD PORT LTPoE++ TITLE: SCHEMATIC 2 2a _ _ REV ECO A B C D DEMO MANUAL DC1815A SCHEMATIC DIAGRAM dc1815afd 11 DEMO MANUAL DC1815A DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer. Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright (c) 2004, Linear Technology Corporation dc1815afd 12 Linear Technology Corporation LT 0116 REV D * PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 www.linear.com LINEAR TECHNOLOGY CORPORATION 2011