FAN7621BSJX AC-DC Power Conversion by ON Semiconductor

PFM Controller for Half-Bridge Resonant Converter

Status: Active
Series: FAN7621B
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The FAN7621B is a pulse frequency modulation controller for high-efficiency 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 highside 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.

Where to Buy

Prices starting from US$0.97

Distributor Stock
Logo for RS
RS
from US$0.97
No stock
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Logo for element14
element14
from US$1.05
177
in stock
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Logo for Farnell
Farnell
from US$1.24
177
in stock
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Logo for Newark Electronics
Newark Electronics
-
-
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Features

Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant Converter Topology
High Efficiency through Zero Voltage Switching (ZVS)
Fixed Dead Time (350ns)
Up to 300kHz Operating Frequency
Pulse Skipping for Frequency Limit (Programmable) at Light-Load Condition
Remote On/Off Control using CON Pin
Protection Functions: Over-Voltage Protection (OVP), Overload Protection (OLP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)
Applications
PDP TV
Desktop PC
Video Game Console
End Products
LCD TV
Server

Specifications

Description FAN7621B
Compliance Pb-free
Package Type SOP-16

Alternative Descriptions

PFM CONTROLLER, 300KHZ MAX, 16SOP | element14
ON Semiconductor, FAN7621BSJX | RS
Pfm Cntlr For Half-Bridge/Reel |Onsemi FAN7621BSJX | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a FAN7621BSJX?

Additional datasheets, footprints and schematics for FAN7621BSJX are listed on our Part Details page. You can also find images and similar parts to FAN7621BSJX on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for FAN7621BSJX on our Product Comparison page. Access via the 'View Pricing & Stock' button to view FAN7621BSJX price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does FAN7621BSJX fall under?

The FAN7621BSJX is listed under Power Management > AC-DC Power Conversion > Offline Controllers.

Can I view similar or alternative parts?

You can view similar parts to FAN7621BSJX when available in the Offline Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the FAN7621BSJX you can contact the distributor directly for product support, shipping queries etc.

Is the FAN7621BSJX RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for FAN7621BSJX have stock available?

Authorised distributors including element14, Farnell, RS and Newark Electronics have stock available or on a lead time for FAN7621BSJX.

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