Price range ($)
0.07967 0.91052
Order
- Users could add parts to cart and upload BOM when they searching parts, calculate cost in a second, offer you the best bill of materials.
- Some specific products need to reach the minimum order quantity.
- Users could get coupons randomly when they applied plus member. Utsource offers different buying options with different product quality from different seller stores when placing orders.
- Users could add products to“inquiry cart" and submit your inquiry, utsource will send quotation email to you.
- If you need add additional order instructions like Tax Invoice or Remark, please put them on the ordering information page.
- All order information could be checked in your "account center"page
- Please confirm the product description when placing order.
- The order can’t be canceled after shipment, so please email customer service to revise order details before shipment.
- Utsource Mobile browser version and APP could be downloaded to find parts anytime, anywhere if needed.
- Please choose right language and currency to place order if needed.
Payment
- UTSOURCE supports global payments, including mainstream US PAYPAL, credit cards (VISA, MASTERCARD, AMERICAN EXPRESS, JCB), WEST UNION, Moneygram;
- Popular payment in Europe: SofortBanking, Trustpay, Paysafecard;
- Middle East: CashU, Onecard;
- Southeast Asia : MOLPay;
- Russia commonly used: Qiwi, Yandex Money, WebMoney;
- The Dutch payment: iDEAL, Polish Dotpay,
- Brazilian payment: Boleto
- These above payments have a high market share in the local area with better payment experience, simpler payment method.
Shipping
- USPS, FedEx, DHL, and UPS could be selected.
- Express: (FEDEX, UPS, DHL, TNT)Free shipping on first 0.5kg for orders over 200$, Overweight will be charged separately.
- It is available for users to select "Freight Collect"depending on their requirement
- It may cost additional remote fees for delivery if you are in a remote area.
- Shipping price for your order will be calculated automatically in the shopping cart.If you have any questions about shipping costs, you can write to us and we will confirm it manually.
- For in-stock parts, orders normally could be shipped out within 1-2days.
- Delivery date: usually 2 to 5 working days.
- Shipping Tracking Number will be sent by email or you can go to APP or website "account center" to check once your order has been shipped.
- Invoice could be downloaded from "account center" > "my invoice" if needed
Gift Coupon/Plus service
- You could receive US $5 shipping coupon (applicable to new users)
- Offer 30-day PLUS free trial service( The plus service will be stopped automatically after the end of the trial, and no extra charge will be generated. Commodity prices are usually reduced by 10%)
- “Funds account” could be used for your next order purchase If you have money that has been returned to your “Funds account”. (You could check it in “My Account” > “Funds account” )
- Utsource offers professional customer service worldwide in USA, Mexico, Brazil, Italy, France, Germany and many other places.
Returning
Returns are normally accepted when completed within 60 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
UC3843B
UC3843B has several brands around the world that may have alternate names for UC3843B due to regional differences or acquisition. UC3843B may also be known as the following names:
All sellers
6
Brand new
6
Certified preowned
6
Official
6
Third Party
6
Description
UC3843B
Stock:33898 |
STMicroelectronics |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.57030 £0.51327 ≥5: £0.45624 £0.41061 ≥10: £0.26234 £0.23610 ≥20: £0.22812 £0.20531 ≥50: £0.20531 £0.18478 ≥100: £0.19960 £0.17964 ≥200: £0.19390 £0.17451 ≥500: £0.18820 £0.16938 ≥1000: £0.18250 £0.16425
More:
Inquiry
|
UC3843B
Stock:38471 |
On Semiconductor 15+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.91052 £0.81947 ≥5: £0.68289 £0.61460 ≥10: £0.40973 £0.36876 ≥20: £0.39835 £0.35852 ≥50: £0.38697 £0.34827 ≥100: £0.37559 £0.33803 ≥200: £0.36421 £0.32779 ≥500: £0.35966 £0.32369 ≥1000: £0.35283 £0.31754
More:
Inquiry
|
UC3843B
Stock:190 |
STMicroelectronics 02/08+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.18210 £0.16389
More:
Inquiry
|
|
UC3843B
Stock:283 |
Promax-Jom 99+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.21852 £0.19667
More:
Inquiry
|
UC3843B
Stock:608 |
STMicroelectronics 04+/01+/13+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.23901 £0.21511
More:
Inquiry
|
|
UC3843B
Stock:48 |
STM 19+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.15934 £0.14341
More:
Inquiry
|
UC3843B
Stock:930 |
On Semiconductor 15+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.07967 £0.07489
More:
Inquiry
|
|
UC3843B
Stock:30 |
Texas Instruments 14+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.15934 £0.14978
More:
Inquiry
|
|
UC3843B
Stock:30 |
STMicroelectronics 08+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.15934 £0.14978
More:
Inquiry
|
UC3843B
Stock:615 |
SDC 60828 |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.18210 £0.17118
More:
Inquiry
|
|
UC3843B
Stock:293 |
SDC 09+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.27316 £0.25677
More:
Inquiry
|
|
UC3843B
Stock:30 |
Motorola PDOX |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.36421 £0.34236
More:
Inquiry
|
|
UC3843B
Stock:100 |
Motorola XBXN |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.18210 £0.17118
More:
Inquiry
|
|
UC3843B
Stock:100 |
STMicroelectronics 01+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.36421 £0.34236
More:
Inquiry
|
|
UC3843B
Stock:100 |
STMicroelectronics 0824+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.36421 £0.34236
More:
Inquiry
|
|
UC3843B
Stock:37 |
STMicroelectronics 02+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.27316 £0.25677
More:
Inquiry
|
|
UC3843B
Stock:33 |
STMicroelectronics 0709+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.36421 £0.34236
More:
Inquiry
|
|
UC3843B
Stock:20 |
STMicroelectronics 0711+ |
High Performance Current Mode PWM ControllerPWM |
≥1: £0.36421 £0.34236
More:
Inquiry
|
The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for Off-Line and DC-DC converter applications offering the designer a cost-effective solution with minimal external components.These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference under voltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output deadtime, and a latch for single pulse metering.
These devices are available in an 8-pin dual-in-line and surface mount (SOIC-8) plastic package as well as the 14-pin plastic surface mount (SOIC-14).The SOIC-14 package has separate power and ground pins for the totem pole output stage.
The UCX842B has UVLO thresholds of 16 V(on) and 10 V (off), ideally suited for off-line converters. The UCX843B is tailored for lower voltage applications having UVLO thresholds of 8.5 V(on) and 7.6 V (off).
Features
● Trimmed Oscillator for Precise Frequency Control
● Oscillator Frequency Guaranteed at 250 kHz
● Current Mode Operation to 500 kHz
● Automatic Feed Forward Compensation
● Latching PWM for Cycle-By-Cycle Current Limiting
● Internally Trimmed Reference with Under voltage Lockout
● High Current Totem Pole Output
● Under voltage Lockout with Hysteresis
● Low Startup and Operating Current
● This is a Pb-Free and Halide-Free Device
E-catalog
Freight calculation
Express:(FEDEX, UPS, DHL, TNT)Free shipping on first 0.5kg for orders over £157.09,Overweight will be charged separately
Become Utsource Plus member to get a lower price.
30-day PLUS free trial for new users, you can get $14 shipping coupons, and there is no automatic renewal after free trial.
Know moreMore information