3848 ADAFRUIT | Alldatasheet

Document overview

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  • PDF pages: 3

Technical content

5V 1.8A Isolated Output PoE Module Works with Raspberry Pi 3 B+ PRODUCT ID: 3848

DESCRIPTION

Power over Ethernet (PoE) can make your project wiring a breeze - instead of needing a wire for power and dat a, you can use one Ethernet cable for both! All you need is this handy PoE module, and access to the center -taps on your Ethernet-capable board. Attach the four input wires, and get regulated 5V 1.8A on the other side. Amazing! This version of the PoE modu le has a transformer in the center, that's the big chunky thing, so that there is no direct electrical connection between the 5V power/ground and Ethernet cables. This module works well with the Raspberry Pi 3 Model B+, which has the 4 wires on a header. A s you can see in our photos, you just need some female -female jumper wires to get the Ethernet wires to the module , and then two wires to bring the 5V back to the header. Note that even though a 2.5A power supply is recommended for a Pi 3B+, that's only required if you attach a bunch of accessories (such as a 7" display!) 1.8A will cover a wide range of usages, as the current draw is around 0.7A max without extras .

If you don't have access to those pins, but can power your board or computer with a micro USB cable, check out our 5V microUSB PoE Splitter. It's bigger and more expensive but really easy to use Great for older Raspberry Pi's (not the 3 B+), Feathers, etc) We also have an non -isolated version of this module, when you don't need electrical separation . TECHNICAL DETAILS To use: 1. Connect pins 1 and 2 to Ethernet wires 4 and 5 2. Connect pins 3 and 4 to Ethernet wires 7 and 8 3. Pin labeled ( -) is ground output 4. Pin labeled (+) is 5V out

  • Input Voltage range: 42 to 55 VDC (48V nominal)
  • Output Voltage range: 4.75 to 5.25V (5V nominal)
  • Output current: 1.8A nominal
  • Efficiency: 80% Appearance -
  • This may come with 4 or 6 pins soldered in.
  • Module Datasheet

https://www.adafruit.com/product/3848 /4-8-20