If I tie the two 3.3V pins together, can I draw 0.333mA or just 250mA??
I'm using 3 thermistor sensors at 0.11mA each so I'm wondering if I'm going
to blow my board.
Many thanks for some knowledgable input!!
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You received this mes
Graff:
I think you are confusing Amperes (A) and milliAmperes (mA).
You need to understand the difference and then re-run your calculations.
I doubt that three thermistors, each drawing a fraction of a milliAmpere
would overload a 250 milliAmpere supply.
--- Graham
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On Sunday, March 5, 201
When you read the service reference manual, section 8.6, you find that the
VDD_3V3B at P9 pins 3 and 4 can source 250 mA max.
On Tuesday, May 27, 2014 12:38:13 AM UTC+2, Robert P wrote:
>
> Hi everyone, I'm trying to figure out if it's safe to power an xbee off
> the 3.3V header on the bbb (
Tying them together will not increase current capacity. They both come from
the same place on the board, the power supply device itself..
Gerald
On Sun, Mar 5, 2017 at 9:46 AM, wrote:
> If I tie the two 3.3V pins together, can I draw 0.333mA or just 250mA??
>
> I'm using 3 thermistor sensors
Those numbers are for each pin, so 500 mA total.
On 5/27/2014 2:04 AM, PLyttle wrote:
> When you read the service reference manual, section 8.6, you find that the
> VDD_3V3B at P9 pins 3 and 4 can source 250 mA max.
>
> On Tuesday, May 27, 2014 12:38:13 AM UTC+2, Robert P wrote:
>>
>> Hi everyo
I doubt that. The pins are connected together. Also:
6.1.9.2 VDD_3V3A Rail
The VDD_3V3A rail is supplied by the TPS65217C and provides the 3.3V for the
processor rails and can provide up to 400mA.
6.1.9.3 VDD_3V3B Rail
The current supplied by the VDD_3V3A rail is not sufficient to power all of
thanks everyone, so I guess the answer is yes? xbee uses 215ma max, so it
looks like it's safe
On Tuesday, May 27, 2014 9:03:18 AM UTC-4, PLyttle wrote:
>
>
> I doubt that. The pins are connected together. Also:
>
> 6.1.9.2 VDD_3V3A Rail
> The VDD_3V3A rail is supplied by the TPS65217C and prov
