DESCRIPTION
A very useful wide-range switch mode regulator with a 5V or 7V output and a wide range input of up to 28V!
The PR28V is rated for up to 1A output and can be used to power your own circuit design and also power an EtherTen, EtherMega and Ethernet Shield over a network cable by fitting the PR28V to their dedicated pins ready for it.
The Power Regulator 28V can be used in two different ways.
1. As a Power-over-Ethernet voltage regulator, it mounts on an Ethernet Shield or EtherTen to allow them to accept input voltages up to 28V via the network cable. If you only intend to pass about 10V down the Ethernet cable you don’t need this module: you can simply put a pair of jumpers across the PoE header pins on the Ethernet Shield or EtherTen and let the Arduino onboard voltage regulator do all the work.
Note: This regulator module is not designed for use with commercial PoE systems such as Ethernet switches with 802.3af support. Commercial PoE switches can push up to 48V down the wire, which will overload the regulator module and force it to shut down. If you want to use the Ethernet Shield with commercial 802.3af equipment you will need to use the Power-over-Ethernet Regulator 802.3af.
If you want to push a higher voltage down the wires (perhaps you already have a 16V, 18V, or 24V power supply lying around?) the Arduino voltage regulator will get very hot and unhappy, so this regulator module takes the power you send down the cable and pre-regulates it down to 7V before passing it through to your Arduino for the final drop to 5V.
This regulator module is designed for use with home-brew PoE injectors that typically supply 16V or 24V or 4-Port PoE Midspan Injectors, not commercial PoE switches.
2. As a general-purpose switchmode voltage regulator, it can be configured to provide a regulated 5V or 7V output so that you can use it directly as a high-efficiency power supply for your projects.
Please Note:
- EtherTen is not included.
RESOURCES
- PR28V Quickstart Guide
- PR28V Schematic and Reference (PDF)
- Discuss in the forum
- Design files
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Note: Orders with more than one item are assigned a processing period depending on the item.
Before shipment, all ordered items will be thoroughly inspected. The majority of orders are delivered within 48 hours. The delivery time varies between 3-7 days.
Returns
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The policy is 30 days. If you haven't received the product within 30 days, we're not able to provide a refund or an exchange.
To be eligible for a refund your item must be unused and in the same state that you received it. The item must be returned in the original packaging.
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