MC7455 Max Amps

Sierra Wireless AirPrime Modem Card Topics
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beausmith94
Posts: 11
Joined: Fri Nov 22, 2019 2:09 pm

MC7455 Max Amps

Post by beausmith94 » Thu Nov 28, 2019 2:31 pm

Hello,

For the MC7455, what is the maximum amps I can supply to the device? I am looking at powered USB hubs, and a lot of them have fast charging 3.0 hubs that supply 2.4amps. I don't want to blow the circuit if I plug into one of these/I don't want to buy one with this type of plug in case I forget someday and plug it in to the wrong port.

The MC7455 tech specs doc only supplies max voltage of 3.6V, but I can't convert into amperage without wattage/resistance.

Thanks :)

-Beau

beausmith94
Posts: 11
Joined: Fri Nov 22, 2019 2:09 pm

Re: MC7455 Max Amps

Post by beausmith94 » Thu Nov 28, 2019 2:37 pm

Found my answer in the power consumption table. Looks like inrush amps is 2.5A, but maximum current is 1.5. So I should not plug this into a 2.4 amp usb with a 3. PCI adapter... I think.

mezmerizz0454
Posts: 5
Joined: Wed Jan 29, 2020 5:56 am

Re: MC7455 Max Amps

Post by mezmerizz0454 » Tue Feb 04, 2020 5:00 am

most homes have a 200 amp panel but your toaster only uses 1000w or so (8.3amp) it will only use the amount of amps it needs at a given voltage.

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terryjett
Posts: 119
Joined: Tue Sep 24, 2019 10:42 pm
Location: East Texas Piney Woods

Re: MC7455 Max Amps

Post by terryjett » Tue Feb 04, 2020 6:50 am

Found my answer in the power consumption table. Looks like inrush amps is 2.5A, but maximum current is 1.5. So I should not plug this into a 2.4 amp usb with a 3. PCI adapter... I think.
Your power supply amperage only effects your modem if "under powered". Power supplies do not put out "amperage", they put out voltage (in simple terms). Amperage comes into play when a "draw" is placed on the power supply.

If a device (such as a modem) demands 2.5 amps, it does so when in use. In standby mode it may only demand 1.5 amps.

The power supply for my router / em7455 is 6 amps. Never an issue. I went with larger to be on safe side, always best to have enough "amperage" on hand.
A person who never made a mistake never tried anything new.
-Albert Einstein

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