6/13/2023 0 Comments Thunderbolt 3hub![]() ![]() ![]() ![]() According to LG, it requires 7.5W of power and should be compatible with any TB3 port, or USB-C port supporting "DisplayPort Alt Mode". The "LG Gram +View (16")" uses a single USB-C cable for power and video signal. If you want to power displays, there are several excellent portable USB-C monitors available. Depending on the USB controller configuration, the limits mentioned above might be shared across multiple ports. You should consult your device's specifications (provided by the manufacturer) to find the output power limit for each port. Unfortunately, marketing materials seldom mention the output power. USB-C ports implementing USB-PD 3.1 can receive up to 240W (48V at 5A).USB-C ports implementing USB-PD 3.0 can receive up to 100W (20V at 5A).Thunderbolt 3 ports generally output 15W (5V at 3A).USB-C ports typically output either 7.5W (5V at 1.5A) or 15W (5V at 3A).USB-A (2.0, 3.0) ports usually output 5W (5V at 1A).Here's a brief summary of the power output for different port types: The power output by a USB-C port on a device is referred to as "bus power". Consequently, hubs connected to these ports cannot supply more than 15W to peripherals unless they have an external power source too. TB3 ports typically have a power output limit of 15W. You might face difficulties finding a hub that can fulfill your requirements due to the power limitations of USB-C/TB3/TB4 ports on laptops. (Btw, I really don't need it to be in the form of a finished 'hub' product-if it's possible to get a raw chip that has those ports on them, that would be even better, I just don't know how to look for such things.) Can supply about 70 watts of power output (so, probably via PD) that it pulls from the thunderbolt port.Has two video outputs (preferably two HDMI ports, but just need two independent video outputs).I know that supporting PD is an optional part of the USB-C spec, iirc, so I can't trust USB-C ports on TB3 hubs to necessarily support USB-PD either, right? It was only after looking at several ads that I realized they all show power going into those power delivery ports, not out of them. I have a project I'm designing, and one of my needs is a thunderbolt 3 hub that (among others things) allows me to pull power from it (I think about 72 watts?). Are they input only, or also output, or 'maybe, good luck getting the specs'? Is there some way to get 70 watts power output from a hub connected to a TB3 port? Thunderbolt 3 hubs often have a "power delivery" port (alt: usb-c port that may support usb-pd). ![]()
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