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Pololu 3,3V spenningsregulator U3V16F3 model rocketry
Pololu 3,3V spenningsregulator U3V16F3
£799 £6.66

Pololu 3,3V spenningsregulator U3V16F3

POL-4940

120 dager
Pris i poeng: 666 poeng
Belønningspoeng: 33 poeng
 
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120-day return period
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Denne kompakte spenningsregulatoren med svitsjing (eller boost) genererer effektivt 3,3 V fra inngangsspenninger så lave som 1,3 V og håndterer kontinuerlige inngangsstrømmer opptil rundt 1,6 A. (Merk: minimum oppstartsspenning er 2,7 V, men den opererer ned til 1,3 V etter det.)

Pinnene har en avstand på 0,1 tommer.

U3V16Fx-familien av boost-spenningsregulatorer (step-up) er svitsjeregulatorer (også kalt svitsjede strømforsyninger (SMPS) eller DC-til-DC-omformere) og har en typisk virkningsgrad mellom 85 % og 95 %.

Regulatorene begrenser aktivt de øyeblikkelige inngangsstrømmene til 2A ved boosting, og inngangsstrømmer opptil rundt 1,6A kan vanligvis opprettholdes i mange minutter uten å utløse termisk avstengning, selv om den faktiske ytelsen avhenger av inngangs- og utgangsspenningene, samt eksterne faktorer som omgivelsestemperatur og luftstrøm. For boost-regulatorer er utgangsstrømmen lik inngangsstrømmen ganger effektiviteten delt på boost-forholdet mellom VOUT og VIN, så jo mer du booster, desto lavere vil den maksimale utgangsstrømmen være (se avsnittet om maksimal kontinuerlig utgangsstrøm nedenfor for ytelsesgrafer).

Disse regulatorene har en rekke innebygde beskyttelser, inkludert syklus-for-syklus inngangsstrømbegrensning, underspenningssperre og overtemperaturavstengning.

Advarsel: Denne boost-regulatoren bruker den typiske topologien som kobler inngangen til utgangen via en induktor og diode, uten noe som fullstendig bryter strømbanen. Derfor vil inngangsspenningen gå gjennom til utgangen selv når regulatoren er deaktivert, og eksponering for kortslutninger eller andre overdrevne belastninger vil skade regulatoren. Denne regulatoren har heller ikke beskyttelse mot reversspenning.

Under normal bruk kan dette produktet bli varmt nok til å brenne deg. Vær forsiktig når du håndterer dette produktet eller andre komponenter som er koblet til det.

Funksjoner

  • Utgangsspenning: 3,3 V med 4 % nøyaktighet
  • Inngangsspenning: 1,3 V til 16 V (Merk: minimum oppstartspenning er 2,7 V)
  • Typisk effektivitet på 85 % til 95 %, avhengig av inngangsspenning, utgangsspenning og belastning (se effektivitetsgrafen nedenfor)
  • Svitsjefrekvens: ~1,2 MHz under tung belastning
  • Strømsparemodus som øker effektiviteten ved lett belastning ved å redusere koblingsfrekvensen
  • Typiske hvilestrømmer uten belastning under 1 mA (se hvilestrømgrafen nedenfor)
  • 2A bryterstrømgrense
  • Typiske kontinuerlige inngangsstrømmer opptil rundt 1,6 A (se grafen for maksimal kontinuerlig utgangsstrøm nedenfor)
  • Tolererer inngangsspenning over innstilt utgangsspenning (utgangen vil spore inngangen, se tilkoblingsdelen for detaljer)
  • Integrerte beskyttelser:
    • Overtemperaturavstengning
    • Mykstartfunksjonen begrenser innkoblingsstrømmen og øker gradvis utgangsspenningen
    • Underspenningssperre
  • Kompakt størrelse: 13,1 × 8,1 × 3 mm
  • Vekt: 0,4 g

Spesifikasjoner

Minimum driftsspenning 1,3V
Maksimal driftsspenning 16V
Maksimal inngangsstrøm 2A
Utgangsspenning 3,3V
Beskyttelse mot reversspenning? N
Størrelse 0,32″ × 0,515″ × 0,1″
Vekt 0,4 g
Brand
Pololu
MPN
POL-4940
Produktinformasjon
Betingelse
ny
Dimensjoner
13,1 x 8,1 mm
Vekt
0,4 g
Antall i pakken
1
Type
Steg opp spenningsregulatoren

Dimension diagram (step-up-voltage-regulator-u3v16fx-dimensions__1_.pdf, 280 Kb) [Last ned]

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Ingen anmeldelser funnet

Shipping your order.
Once you have paid for your order we will work to dispatch your items.
All items on our website shown as in stock, are in our warehouse ready to ship unless stated otherwise on the product page. 

We aim to ship orders within 1 working day of ordering on your chosen shipping method.
We do not guarantee this however, especially at extremely busy times of the year. Therefore if you do require your order urgently, please drop us a email after you order to let us know.

Please note that you must use a courier option if your order contains rocket motors, you can not use the Royal Mail for orders with motors. The website should automatically disable the Royal Mail shipping option once these items are added to your cart. However in the case of a website mistake you will need to use the courier option. 

Orders will ship on your chosen courier, all UK Mainland couriers we offer are a next day service. The couriers however do not offer us a guarantee on this, so we are unable to pass one along.
Over 95% of our orders do arrive next day as intended. 

If you require Saturday delivery there is a Saturday delivery option on the checkout page. DHL do not offer Saturday delivery by default.
Delivery options.
We offer a variety of delivery options on the checkout page. We also off the option to pickup your order from our warehouse in Millom, Cumbria, LA18 4JS.
You can use the Royal Mail option for smaller items up to 2Kg in weight as long as they do not contain motors.
Please be aware if you require AM or Saturday delivery these orders may still take up to 1 working day to dispatch. We do, however, prioritise express orders for dispatch.  
Returns.
Returns for any reason
We will accept returns on all products for 90 days from the date of delivery.
If an item was sent un-tracked the delivery date is agreed to be 2 (two) days after shipment.

Changed your mind or do not like the product?
You are required to cover the cost of returning the item to us, we can send you a pre-paid label to deduct from your refund if it is convenient or cost effective for you.
Items without rocket motors
£7
Items with rocket motors
£13
These prices cover up to 25Kg in weight, and if the order is larger multiple labels will be required.  These prices are for UK collections only, please contact us if outside of the UK.

Returned items should be undamaged and in a good condition suitable to be sold again. They need to arrive with us in this condition.

You must package the item well so that damage does not occur in transit, although you do not need to use the original packaging.
Item was damaged, faulty or other reasons?
We are happy to cover the cost of returning a product that has arrived damaged or faulty within 90 days.
We will offer to replace the faulty or damaged item, or refund you in full at your preference.
In regards to missing parts of kits we reserve the right to replace the required parts rather than the entire kit. 
Was your item customised, personalised or ordered in specially?
Custom items & special order items can not be returned for a refund as they are not sellable or may be hard to sell again.
If the item arrives damaged or faulty we will of course still offer a refund or replacement on custom orders.
My item has not arrived can I have a refund?
If your item has not been dispatched, yet then we can cancel your order and refund you in full. Except if this is a special order item that we are unable to cancel and have already ordered from the supplier. 

 If your item has been dispatched then we will need to investigate with our couriers before continuing with our refund process. This may take up to 14 working days to complete although is usually a far quicker process. We will always offer a full refund or replacement for lost items.
Your refund
Refunds will be processed within 3 working days of your item being returned to us.

If you paid by BACS we will require your bank details to send a repayment via BACS.
BACS payments should usually arrive in your account the same day, however please allow up to 5 working days.

If you paid by PayPal (Debit or Credit Card) the refund will usually be processed on to the payment method used to make the payment. This may take up to 7 working days to complete but is usually within 3-5 working days.

If you paid via credit or debit card the refund will usually be with you within 1-5 working days. 

If you paid by cheque we are unable to process a refund by any method other than cheque and this will be posted 2 working days after your payment cleared at the earliest. (This is the final clearing date defined by the latest time period in which the cheque can be reversed, not the initial funds release date.)