Linear Technology LTC4290B/LTC4271: (DC1680 + DC1842) 8-Port 25.5W Demo Kit (req DC590) DC1843A DC1843A Datenbogen

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dc1843af

DEMO MANUAL DC1843A

DC1842A and DC1680A

LTC4290B/LTC4271 

8-Port PSE with Digital Isolation 

Demonstration kit DC1843A is an 8-port Type 2 power 
sourcing equipment (PSE) composed of a DC1842A 
daughter card and DC1680A motherboard. The kit is used 
for evaluation of the LTC4290B and LTC4271 PSE chipset. 
Up to 8 powered devices (PDs) can be connected and 
powered from this system using a single power supply. 
A DC590 is connected to the DC1680A for I

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C interfacing 

with QuikEval™. This demonstration manual provides a 
Quick Start Procedure, a DC1842A overview, a DC1680A 

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and 
QuikEval is a trademark of Linear Technology Corporation. All other trademarks are the property 
of their respective owners.

overview, schematics, BOMs, and layout printouts. Refer 
to the Layout Guide for Demonstration Circuit 1842A when 
laying out the LTC4290B/LTC4271 circuit. Contact Linear 
Technology for this document.