Products > Integrated Circuits (ICs) > FAN6755UWMYB

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mWSaver™ PWM Controller

  • Package/Case :
  • SOP-7
  • Product Categories :
  • Integrated Circuits (ICs)
  • RoHs Status:
  • Lead free/RoHS Compliant
  • In-stock:
  • 688


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FAN6755UWMYB Product Details

This highly integrated PWM controller provides several features to enhance the performance of flyback converters. 

To minimize standby power consumption, a proprietary adaptive green-mode function reduces switching frequency at light-load condition. To avoid acousticnoise problems, the minimum PWM frequency is set above 23 kHz. This green-mode function enables the power supply to meet international power conservation requirements, such as Energy Star® . With the internal high-voltage startup circuitry, the power loss caused by bleeding resistors is also eliminated. To further reduce power consumption, FAN6755W/UW uses the BiCMOS process, which allows an operating current of only 2 mA. The standby power consumption can be under 100 mW for most of LCD monitor power supply designs. 

FAN6755W/UW integrates a frequency-hopping function that reduces EMI emission of a power supply with minimum line filters. The built-in synchronized slope compensation achieves a stable peak-currentmode control and improves noise immunity. The proprietary line compensation ensures constant output power limit over a wide AC input voltage range from 90 VAC to 264 VAC. FAN6755W/UW provides many protection functions. The internal feedback open-loop protection circuit protects the power supply from open-feedback-loop condition or output-short condition. It also has line under-voltage protection (brownout protection) and over-voltage protection using an input voltage sensing pin (VIN). 


  • mWSaver™ Technology Provides Industry’s Bestin-Class Standby Power
    - <100 mW at 25-mW Load for LCDM Adaptor - Internal High
    -Voltage JFET Startup
    - Low Operating Current: Under 2 mA
    - Adaptively Decrease PWM Frequency to 23 kHz at Light-Load Condition for Better Efficiency
    - Feedback Impedance Switching During Minimum Load or No Load 
  • Proprietary Asynchronous Frequency Hopping Technique that Reduces EMI 
  • Fixed PWM Frequency: 65 kHz (FAN6755W), 130 kHz (FAN6755UW) 
  • Internal Leading-Edge Blanking 
  • Built-in Synchronized Slope Compensation 
  • Auto-Restart Protection: Feedback Open-Loop Protection (OLP), VDD Over-Voltage Protection (OVP), Over-Temperature Protection (OTP), and Line Over-Voltage Protection 
  • Soft Gate Drive with Clamped Output Voltage: 18 V 
  • VDD Under-Voltage Lockout (UVLO) 
  • Programmable Constant Power Limit (Full AC Input Range) 
  • Internal OTP Sensor with Hysteresis 
  • Build-in 5-ms Soft-Start Function 
  • Input Voltage Sensing (VIN Pin) for Brown-In/Out Protection with Hysteresis and Line Over-Voltage 


General-purpose switched-mode power supplies and flyback power converters, including: 

  • LCD Monitor Power Supply 
  • Open-Frame SMPS


FAN6755UWMYB Pinout
(Picture: Pinout)

FAN6755UWMYB Block Diagram
(Picture: Diagram)

Technical Parameters

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  • Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
  • RoHs Status
  • Lead free/RoHS Compliant
  • Package/Case
  • SOP-7

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  • **EPAN***

    Sehr guter supplier, schnelle Lieferung,empfehlenswert, Danke !

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Estimated Delivery Time: Jun 30 - Jul 05 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
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  • $20.00-$45.00 (0.50 KG)
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  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
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  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that FAN6755UWMYB is the original manufacturer or agent of FAIRCHILD?
We have a professional business development department to strictly test and verify the qualifications of FAIRCHILD original manufacturers and agents. All FAIRCHILD suppliers must pass the qualification review before they can publish their FAN6755UWMYB devices; we pay more attention to the channels and quality of FAN6755UWMYB products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of FAN6755UWMYB chips? Including FAIRCHILD original factory information, application, FAN6755UWMYB pictures?
You can use Jotrin's intelligent search engine, or filter by Integrated Circuits (ICs) category, or find it through Fairchild Semiconductor (ON Semiconductor) Information page.
Q: Are the FAIRCHILD's FAN6755UWMYB price and stock displayed on the platform accurate?
The FAIRCHILD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for FAN6755UWMYB, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of FAN6755UWMYB?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the FAN6755UWMYB we delivered, we will accept the replacement or return of the FAN6755UWMYB only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of FAN6755UWMYB.
(3)The FAN6755UWMYB is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as FAN6755UWMYB datasheet pdf, FAN6755UWMYB pin diagram?
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Fairchild Semiconductor (ON Semiconductor)

In the previous Fairchild Semiconductor was a leading global supplier of power analog, power discrete, and optoelectronic components that optimize system power....

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