Products > Integrated Circuits (ICs) > Power Management ICs > FAN7621BSJX
  • FAN7621BSJX

Images are for reference only.


Hot Sale

PFM Controller for Half-Bridge Resonant Converters

  • Package/Case :
  • SOP-16
  • Product Categories :
  • Switching Converters, Regulators & Controllers
  • RoHs Status:
  • Green
  • In-stock:
  • 2318


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

FAN7621BSJX Product Details

The FAN7621BSJX is a PFM Controller for half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FAN7621B simplifies designs and improves productivity, while improving performance. The FAN7621B includes a high side gate-drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft-start and built-in protection functions. The high-side gate-drive circuit has a common-mode noise cancellation capability, which guarantees stable operation with excellent noise immunity. Using the zero-voltage-switching (ZVS) technique dramatically reduces the switching losses and efficiency is significantly improved. The ZVS also reduces the switching noise noticeably, which allows a small-sized Electromagnetic Interference (EMI) filter. The FAN7621B can be applied to various resonant converter topologies; such as series resonant, parallel resonant and LLC resonant converters.



  • High efficiency through zero voltage switching (ZVS)
  • 350ns Fixed dead time
  • Pulse skipping for frequency limit (programmable) at light-load condition
  • Remote on/off control using CON Pin
  • Over-voltage protection (OVP)
  • Overload protection (OLP)
  • Over-current protection(OCP)
  • Abnormal over-current protection (AOCP)
  • Internal thermal shutdown (TSD)

Technical Parameters

  • Output Voltage
  • 24 V
  • Output Current
  • 8 A
  • Output Power
  • 192 W
  • Switching Frequency
  • 300 kHz
  • Operating Temperature Range
  • - 40 C to + 130 C
  • Mounting Style
  • Package / Case
  • SOP-16
  • Packaging
  • Reel
  • Factory Pack Quantity
  • 2000

FAN7621BSJX Related Products

Ratings and Reviews

  • 0 / 5
  • 5 Stars 0%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jun 19 - Jun 24 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)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 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
  • Hand Fee
  • 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 FAN7621BSJX is the original manufacturer or agent of ON?
We have a professional business development department to strictly test and verify the qualifications of ON original manufacturers and agents. All ON suppliers must pass the qualification review before they can publish their FAN7621BSJX devices; we pay more attention to the channels and quality of FAN7621BSJX products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of FAN7621BSJX chips? Including ON original factory information, Switching Converters, Regulators & Controllers application, FAN7621BSJX pictures?
You can use Jotrin's intelligent search engine, or filter by Switching Converters, Regulators & Controllers category, or find it through ON Semiconductor, LLC Information page.
Q: Are the ON's FAN7621BSJX price and stock displayed on the platform accurate?
The ON's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for FAN7621BSJX, 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 FAN7621BSJX?
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 FAN7621BSJX we delivered, we will accept the replacement or return of the FAN7621BSJX 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 FAN7621BSJX.
(3)The FAN7621BSJX 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 FAN7621BSJX datasheet pdf, FAN7621BSJX pin diagram?
Need any After-Sales service, please feel free contact us:

ON Semiconductor, LLC

ON Semiconductor is a technology innovation enabler in energy-efficient electronics that enables design engineers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help customers solve...
  • FAN7554D
    FAN7554D Intelligent Current Mode PWM SMPS Control IC; Package: SOIC; No of Pin...
  • FAN7554DTF
    FAN7554DTF Intelligent Current Mode PWM SMPS Control IC; Package: SOIC; No of Pin...
  • FAN7601GX
    FAN7601GX GREEN MODE PWM CONTROL IC; Package: SSOP; No of Pins: 10; Container: T...
  • FAN7601N
    FAN7601N Green Current Mode PWM Controller,Current Mode PWM Controllers PWM Con...
  • FAN7602CN
    FAN7602CN GREEN MODE PWM CONTROL IC; Package: 8-DIP; Container: Rail,Current Mod...
  • FAN7601G
    FAN7601G Current Mode PWM Controllers PWM Controller Green Current Mode

Certificates & Honor

Certificates & Honor