DIY 802.3at PoE+ splitter

3 months ago

Profile:DIY gigabit PoE+ Power over Ethernet splitter designed for through-hole components. Good for learning about PoE PDs (powered devices).

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Description

Read the full guide on diy through-hole poe+ splitter.

 

This post is part of a series on PoE (power-over-ethernet), see the first two posts here:

In this guide, we are taking the concept one step further by using "smart" PoE, by using the 802.3at standard to negotiate the level of power we want from the PoE switch. Read more about 802.3at specification here.

Documents

PCB_2021-04-04_08-58-52

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BOM

ID Name Designator Footprint Quantity
1 TJ-L5FYTGHGMCGSFLC2G-A5 POE LED-TH_BD5.8-P2.54-FD 1
2 3.3K R9 RES-TH_BD2.4-L6.3-P10.30-D0.6 1
3 ETH-IN ETH-IN HEADER 1X8 1
4 ETH-OUT ETH-OUT HEADER 1X8 1
5 1nF C2,C3,C4,C10 CAP-TH_L9.0-W5.0-P10.00-D0.7 4
6 TPS2379DDAR U1 SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP 1
7 47uF C1 CAP-TH_BD10.0-P5.00-D1.0-FD 1
8 100nF C5 CAP-TH_L8.5-W5.0-P5.00-D1.2 1
9 H6062NL T1 XFMR-SMD_H5007NLT 1
10 OUT- - PADPAD 1
11 OUT+ + PADPAD 1
12 DB107_C84061 D1,D2 DIO-BG-TH_DB107 2
13 75Ω R1,R2,R3,R4,R5,R6,R7,R8 RES-TH_BD2.3-L3.7-P7.70-D0.9 8
14 63.4Ω RCLS RES-TH_BD2.3-L3.7-P7.70-D0.9 1
15 24.9kΩ RDEN RES-TH_BD2.3-L3.7-P7.70-D0.9 1
16 10nF C6,C7,C8,C9 CAP-TH_L8.5-W5.0-P5.00-D1.2 4
17 1X2 J1 HDR-TH_2P-P2.54-V 1
18 VOUT OUT HDR-TH_2P-P2.54-V 1

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