Linear Technology LTC4266A Manual Download Page 6 | Manualshive

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dc1815afc

DEMO MANUAL DC1815A

pcB Layout

Layer 2: Plane Layer

Layer 3: Plane Layer

Layer 4: Bottom Layer

Bottom Silkscreen

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Summary of Contents for LTC4266A

Page 1: ...e trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners an I2C serial interface operable up to 1MHz Optional I2C control is accessed on the DC181...

Page 2: ...ables 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 Ty...

Page 3: ...E 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 End...

Page 4: ...er area or trace between the sense resistor and the MOSFET Figure 3 LTC4266A Key Application Components for Board Placement The VEE side of the sense resistor must connect to a thick VEE plane through...

Page 5: ...asshowninFigure5 EachLTC4266A 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 t...

Page 6: ...6 dc1815afc DEMO MANUAL DC1815A PCB Layout Layer 2 Plane Layer Layer 3 Plane Layer Layer 4 Bottom Layer Bottom Silkscreen...

Page 7: ...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...

Page 8: ...A 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 CIR...

Page 9: ...FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 2 Thursday March 28 2013 1 3 QUAD PORT LTPoE PSE CONTROLLER JK DILIAN R N A LTC4266AIUHF FAMILY DEMO CIRCUIT 1815A SIZE DATE V E R O N C...

Page 10: ...1815A REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV REVISION HISTORY DESCRIPTION DATE APPROVED ECO REV CT5 0 01uF 0805 CT5 0 01uF 0805 FB3 FB3...

Page 11: ...LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 2 Thurs...

Page 12: ...NCLUDING 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...

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