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FAN7621BSJX

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FAN7621BSJX

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Part Number FAN7621BSJX
Manufacturer Fairchild/ON Semiconductor
Description IC OFF-LINE CTRLR PROG PFM 16SOP
Datasheet FAN7621BSJX Datasheet
Package 16-SOIC (0.209", 5.30mm Width)
In Stock 2,558 piece(s)
Unit Price $ 0.6353 *
Lead Time Can Ship Immediately
Estimated Delivery Time Oct 29 - Nov 3 (Choose Expedited Shipping)
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Part Number # FAN7621BSJX (PMIC - AC DC Converters, Offline Switchers) is manufactured by Fairchild/ON Semiconductor and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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FAN7621BSJX Specifications

ManufacturerFairchild/ON Semiconductor
CategoryIntegrated Circuits (ICs) - PMIC - AC DC Converters, Offline Switchers
Datasheet FAN7621BSJXDatasheet
Package16-SOIC (0.209", 5.30mm Width)
Series-
Output IsolationIsolated
Internal Switch(s)No
Voltage - Breakdown-
TopologyHalf-Bridge
Voltage - Start Up12.5V
Voltage - Supply (Vcc/Vdd)10 V ~ 25 V
Duty Cycle50%
Frequency - SwitchingUp to 300kHz
Power (Watts)192W
Fault ProtectionCurrent Limiting, Over Load, Over Temperature, Over Voltage
Control FeaturesFrequency Control
Operating Temperature-40°C ~ 130°C (TJ)
Package / Case16-SOIC (0.209", 5.30mm Width)
Supplier Device Package16-SOP
Mounting TypeSurface Mount

FAN7621BSJX Datasheet

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To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore (_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild_questions@onsemi.com. Is Now Part of ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

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July 2010 © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs FAN7621B PFM Controller for Half-Bridge Resonant Converters 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 and LCD TVs Desktop PCs and Servers Adapters Telecom Power Supplies Video Game Consoles Description 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 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. Related Resources AN4151 — Half-bridge LLC Resonant Converter Design using FSFR-series Fairchild Power Switch (FPSTM) Ordering Information Part Number Operating Junction Temperature Package Packaging Method FAN7621BSJ -40°C ~ 130°C 16-Lead Small Outline Package (SOP) Tube FAN7621BSJX Tape & Reel

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 2 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Application Circuit Diagram Rsense FA N 76 21 B CDL VCC LVCC RT CON CS SG PG CTR HVCC Cr Llk Lm Ns VO D1 D2 RFCF Np Ns KA431 VIN HO LO Figure 1. Typical Application Circuit (LLC Resonant Half-Bridge Converter) Block Diagram OLP TSD LVCC good Low-Side Gate Drive High-Side Gate Drive 6 1 12 10.0 / 12.5 V VREF Internal Bias LVCC good 3 HO CS CON LVCC HVCC CTRRT VAOCP PG LVCC OVP Time Delay 2 8 16 9 Time Delay + - VOCP + - + - + - + - -Q Q R S LVCC < 5V Latch protection -Q Q R S Auto-restart protection + - 0.4 / 0.6 V 5 V 23 V 0.58 V 0.9 V 8.7 / 9.2 V HVCC good + - ICTC + - + - 3 V 1 V -Q Q R S F/F Level-Shift Balancing Delay Shutdown without delay 50ns delay -1 2ICTC VREF ICTC 350ns 350ns 10 SGDelay 1.5μs 2V+ - Coun ter (1/4) LVCC IOLP 14 LO Figure 2. Internal Block Diagram

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 3 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Pin Configuration (3) HO (4) NC PG (16) FAN7621B NC (13) NC (15) (5) NC (6) CON (7) NC LO (14) LVCC (12) CS (9) NC (11) SG (10) (2) CTR (1) HVCC (8) RT Figure 3. Package Diagram Pin Definitions Pin # Name Description 1 HVCC This is the supply voltage of the high-side gate-drive circuit IC. 2 CTR This is the drain of the low-side MOSFET. Typically, a transformer is connected to this pin. 3 HO This is the high-side gate driving signal. 4 NC No connection. 5 NC No connection. 6 CON This pin is for a protection and enabling/disabling the controller. When the voltage of this pin is above 0.6V, the IC operation is enabled. When the voltage of this pin drops below 0.4V, gate drive signals for both MOSFETs are disabled. When the voltage of this pin increases above 5V, protection is triggered. 7 NC No connection. 8 RT This pin programs the switching frequency. Typically, an opto-coupler is connected to control the switching frequency for the output voltage regulation. 9 CS This pin senses the current flowing through the low-side MOSFET. Typically, negative voltage is applied on this pin. 10 SG This pin is the control ground. 11 NC No connection. 12 LVCC This pin is the supply voltage of the control IC. 13 NC No connection. 14 LO This is the low-side gate driving signal. 15 NC No connection. 16 PG This pin is the power ground. This pin is connected to the source of the low-side MOSFET.

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 4 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. TA=25°C unless otherwise specified. Symbol Parameter Min. Max. Unit VHO High-Side Gate Driving Voltage VCTR-0.3 HVCC V VLO Low-Side Gate Driving Voltage -0.3 LVCC LVCC Low-Side Supply Voltage -0.3 25.0 V HVCC to VCTR High-Side VCC Pin to Center Voltage -0.3 25.0 V VCTR Center Voltage -0.3 600.0 V VCON Control Pin Input Voltage -0.3 LVCC V VCS Current Sense (CS) Pin Input Voltage -5.0 1.0 V VRT RT Pin Input Voltage -0.3 5.0 V dVCTR/dt Allowable Center Voltage Slew Rate 50 V/ns PD Total Power Dissipation 16-SOP 1.13 W TJ Maximum Junction Temperature(1) +150 °C Recommended Operating Junction Temperature(1) -40 +130 TSTG Storage Temperature Range -55 +150 °C Note: 1. The maximum value of the recommended operating junction temperature is limited by thermal shutdown. Thermal Impedance Symbol Parameter Value Unit θJA Junction-to-Ambient Thermal Impedance 16-SOP 110 ºC/W

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 5 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Electrical Characteristics TA=25°C and LVCC=17V unless otherwise specified. Symbol Parameter Test Conditions Min. Typ. Max. Unit Supply Section ILK Offset Supply Leakage Current HVCC=VCTR 50 μA IQHVCC Quiescent HVCC Supply Current (HVCCUV+) - 0.1V 50 120 μA IQLVCC Quiescent LVCC Supply Current (LVCCUV+) - 0.1V 100 200 μA IOHVCC Operating HVCC Supply Current (RMS Value) fOSC=100kHz, VCON > 0.6V, CLoad=1nF 5 8 mA No Switching, VCON < 0.4V 100 200 μA IOLVCC Operating LVCC Supply Current (RMS Value) fOSC=100kHz, VCON > 0.6V, CLoad=1nF 6 9 mA No Switching, VCON < 0.4V 2 4 mA UVLO Section LVCCUV+ LVCC Supply Under-Voltage Positive Going Threshold (LVCC Start) 11.2 12.5 13.8 V LVCCUV- LVCC Supply Under-Voltage Negative Going Threshold (LVCC Stop) 8.90 10.00 11.10 V LVCCUVH LVCC Supply Under-Voltage Hysteresis 2.5 V HVCCUV+ HVCC Supply Under-Voltage Positive Going Threshold (HVCC Start) 8.2 9.2 10.2 V HVCCUV- HVCC Supply Under-Voltage Negative Going Threshold (HVCC Stop) 7.8 8.7 9.6 V HVCCUVH HVCC Supply Under-Voltage Hysteresis 0.5 V Oscillator & Feedback Section VCONDIS Control Pin Disable Threshold Voltage 0.36 0.40 0.44 V VCONEN Control Pin Enable Threshold Voltage 0.54 0.60 0.66 V VRT V-I Converter Threshold Voltage RT=5.2kΩ 1.5 2.0 2.5 V fOSC Output Oscillation Frequency 94 100 106 kHz DC Output Duty Cycle 48 50 52 % fSS Internal Soft-Start Initial Frequency fSS=fOSC+40kHz, RT=5.2kΩ 140 kHz tSS Internal Soft-Start Time 2 3 4 ms Output Section Isource Peak Sourcing Current HVCC=17V 250 360 mA Isink Peak Sinking Current HVCC=17V 460 600 mA tr Rising Time CLoad=1nF, HVCC=17V 65 ns tf Falling Time 35 ns VHOH High Level of High-Side Gate Driving Signal (VHVCC-VHO) IO=20mA 1.0 V VHOL Low Level of High-Side Gate Driving Signal 0.6 V VLOH High Level of High-Side Gate Driving Signal (VLVCC-VLO) 1.0 V VLOL Low Level of High-Side Gate Driving Signal 0.6 V

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 6 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Electrical Characteristics (Continued) TA=25°C and LVCC=17V unless otherwise specified. Symbol Parameter Test Conditions Min. Typ. Max. Unit Protection Section IOLP OLP Delay Current VCON=4V 3.8 5.0 6.2 μA VOLP OLP Protection Voltage VCON > 3.5V 4.5 5.0 5.5 V VOVP LVCC Over-Voltage Protection LVCC > 21V 21 23 25 V VAOCP AOCP Threshold Voltage -1.0 -0.9 -0.8 V tBAO AOCP Blanking Time 50 ns VOCP OCP Threshold Voltage -0.64 -0.58 -0.52 V tBO OCP Blanking Time (2) 1.0 1.5 2.0 μs tDA Delay Time (Low-Side) Detecting from VAOCP to Switch Off (2) 250 400 ns TSD Thermal Shutdown Temperature (2) 110 130 150 °C ISU Protection Latch Sustain LVCC Supply Current LVCC=7.5V 100 150 μA VPRSET Protection Latch Reset LVCC Supply Voltage 5 V Dead-Time Control Section DT Dead Time 350 ns Note: 2. These parameters, although guaranteed, are not tested in production.

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 7 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Typical Performance Characteristics These characteristic graphs are normalized at TA=25ºC. 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 25 O C Temp (OC) 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 N o rm al iz e d a t 25 O C Figure 4. Low-Side MOSFET Duty Cycle vs. Temperature Figure 5. Switching Frequency vs. Temperature 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz e d a t 25 O C 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 2 5O C Figure 6. High-Side VCC (HVCC) Start vs. Temperature Figure 7. High-Side VCC (HVCC) Stop vs. Temperature 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 2 5O C 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 25 O C Figure 8. Low-Side VCC (LVCC) Start vs. Temperature Figure 9. Low-Side VCC (LVCC) Stop vs. Temperature

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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN7621B • Rev. 1.0.1 8 F A N 7621B — P F M C o n tro ller fo r H a lf-B rid g e R eso n an t C o n verte rs Typical Performance Characteristics (Continued) These characteristic graphs are normalized at TA=25ºC. 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 2 5O C 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 25 O C Figure 10. OLP Delay Current vs. Temperature Figure 11. OLP Protection Voltage vs. Temperature 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 25 O C 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 25 O C Figure 12. LVCC OVP Voltage vs. Temperature Figure 13. RT Voltage vs. Temperature 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm al iz ed a t 2 5O C 0.9 0.95 1 1.05 1.1 -50 -25 0 25 50 75 100 Temp (OC) N o rm a liz e d a t 25 O C Figure 14. CON Pin Enable Voltage vs. Temperature Figure 15. OCP Voltage vs. Temperature

FAN7621BSJX Reviews

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Ari*****uilar

August 21, 2020

Competitively priced set of diodes, tested as described. Quality is about what you would expect for no- or off-brand.

Xand*****ooper

August 20, 2020

Didn’t need so many but it was cheap. I did have to solder extra wire on each end to make fit better but exactly you need of your looking for this particular mod.

Audrin*****krishnan

August 11, 2020

I am very happy with how Heisener do business. Will definitely buy their products in the future as I have confidence in their customer service.

Sama*****atton

August 3, 2020

What can I say, great value for the money. I only needed 2 but now I have some spares for future projects. They got the job done, nothing more I can say.

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